882 vs 193 heads.

882 vs 193 heads 50 E valves. They were produced in the millions and if you are rebuilding a 70's era 350, more than likely it will have a set of these heads on it. Jan 19, 2014 · i have some 193 heads [used] also a very used 1980 305,i can do all the work my self except boring of cylinders , have a . 882 heads were designed by Chevy to be used in 350 ci and 400 ci engines. The 96 and up use the completley different L31 Vortec bolt pattern. 29% 125/109 87. Jan 14, 2004 · Tech Help. They yield average flow numbers, but respond to modifications just like any other small block head. I am not impressed how thin the cylinder head decks are. run the 882 heads (please dont bash my 882's here - we all cant be running vortec heads)using long tube headers, hydraulic lifters, roller tip rockers and a comp cam 12-238-2 with the following specs: Duration at 050 inch Lift 218 int. I can pick up a rebuilt set of 624 heads for $100 through a private sale which I could then just throw on the truck and drive. Apr 5, 2012 · The vane in the valve pocket of the 193 can be ported out; this makes what essentially is a cast iron L98 head which actually exists as castings 14096217 or 14101083. 364/2. 60over bore 9. Heads fit 1987 - 1995 only, TPI and TBI intakes. Depending on the cam, intake, pistons, and headers you run, you might get up to 350 - 400 hp out of them -- maybe more if you heavily work the heads and rev the crap out of it. i will say, roller tipped 1. 39% 423. 94 valves and the 76cc chambers. The factory 350 swirl port (casting 193 from a 1992 G30 Van) flow just a little less than the Iron L98 heads do on the intake, but better by a good margin on the exhaust. These heads are very similar to the 441 and 493 400 small block head. In this video I compare Blueprint Muscle Series H8002K aluminum cylinder heads to General Motors small-port Bowtie Vortec iron cylinder heads. Sep 27, 2014 · The 193 heads are designed for lowend torque. Sep 3, 2004 · personally i would stick with the 441's, because like was mentioned 40 hrs worth of port work on 267/305 heads would cost a buttload of money if you can't do it yourself. 5:1 compression ratio with these heads, comp cams . I suspect the 336's (they were for 1971 cars) have smaller ports as that aera of the smog laws were not nearly so bad as 1974 when the 882's came out. 025 deck. 94 valves. I'm happy with the heads. As far as the difference when you consider the application between the 1972 base engine and the LT-1: Base engine used 1. 882 heads 11-11-02 09:48 PM - Post# 135201 In response to IgorT. The 305 head will out-flow it on a smaller port=more HP and more TQ. 5 comp pistons Mar 1, 2021 · Types of GM Vortec Heads L31 Vortecs comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). i was looking at comp cams xtreme 4x4 cam with, 262° Intake / 270° Exhaust, Duration @ . 60 valves reground and a set of valve springs that match your cam. This also shows the original shape, and how it needs to be altered to m Oct 18, 2012 · I have stock 193 heads that i will be porting. Materials and Construction: Aluminum vs. I want to run 350-375 hp on pump gas and keep C/R at 9. Swapping to a set of box-stock Dart IE 180's (72cc chambers) put me deep in the 13's at nearly 100mph with no other changes. 20% 175/136 77. 50 valves, pressed rocker studs and softer (less tension) valve springs with exhaust valve rotator cups; LT-1 used 2. 50-inch valves with either 67 or 76- cc combustion chambers. 2nd your smog era 350 heads flow terribly. to get 500 hp, you will prob need more cam than that. probably around 1250 to 1300. First: What ports are in om my motor, a 1992 Chevy 350 gen 1 small block w/ swirl port heads from a Roadmaster? Judging from how they look, they are either oval or square I guess? Then: How does the the different port styles fit against Mar 11, 2003 · The only difference between the 487 and 487X is that the X has 10cc larger intake port volume. 94 valves flow almost as well and were used in 300 www. 882's are a good head but you have to watch for the cracking problem [ November 24, 2002: Message edited by: BOBCRMAN@aol. 71% 204/143 70. 72/1. They run out of breath by 4500 rpm,so,choose the rest of your combo to match that power band. 810. I am lookin for some 993 heads because my machine shop guy says thats the route I wanna go. Some books say model years of 1974-80 and other books say 1975-77. You may want to re-think this a bit. The World Products Torquer S/R is an affordable, iron stock replacement head offering a choice of 1. Most of them have GMs first attempt at induction hardening of the exhaust seats. 02 intake valves, the small block Chevy engine made a respectable 355hp peak at about 5,000 rpm and a big, fat table of torque Username Post: 881 heads? good as 882s? (Topic#60580) davidh Senior Member Posts: 562 Loc: Oklahoma Reg: 02-17-01 Jan 17, 2011 · Any idea if it is worth it to replace the stock "193" TBI heads with say a set of 487/993 heads from the early 70's without any other mods except opening the center intake holes to align with the old heads? Any real value here. BUT I have in fact seen & owned them Cast as 882 exact same head as a 881 , late 74 882 issues had the good My opinion is to stay away from the 882. I *believe* 210hp heads are about 70cc, and the 210hp 327's was only like 8. The heads make reasonable power as stock replacement heads, but there are certainly better heads available for a little more money. The 083 were used in Fcars and the 193s were used in light- and medium-trucks and fullsize passenger cars. 500-Pipe 76 70/59 84. 050" duration cam, and forget about a lumpy idle sound. Enough to feel a difference but not enough to buy 100 octane Dec 19, 2021 · Normally you have play with the alignment some on pretty much all aftermarket heads. 1. then went to low mile junk 82' vette heads because my 78' nova was my only car in HS and shortly went to Nov 17, 2009 · Using a set of 882 iron heads that had been modified with a set of 2. it would run a ton better by just putting the vortecs on with a steel shim gasket and a matching cam shaft. p gain will feel much better seat of the pants wise. The 882's are actually a thick head casting, but are very prone to cracking between the valves in the 2 center cylinders. Mar 27, 2003 · I have read several articles recently where folks are talking about 882 heads as if they were really the cream of the crop. be/q7unh0qkxey Nov 7, 2010 · option 2. 72% 1. 400-inch lift are almost identical. I don't have any rules to go by, but the topic fit what I have. Car picked up 10-15 mph in the quarter mile and several mpg. I glanced at the cylinder heads and noticed one has a 191 casting number and the other is a 193. the Corvette L98 23 Degree Chevy Head The 23 Degree Street head uses a conventional 23 degree valve angle, making it a direct, emissions-legal swap for 1995 and earlier non-LT1 Chevy heads, has factory valvetrain geometry, and uses standard small block components. they are the preferred head to use out of the factory open chambered small block heads Description Professionally rebuilt pair of Small Block Chevrolet cylinder heads. 94/1. 12% 339. 450" lift. 7 hp 205/144 70. Oct 13, 2006 · I have a set of Chevy heads with a casting number of 333882, with 1. 7L 350 193 Slotted Push Rod Holes, Year:86-93 Mar 3, 2005 · The 882 head is your typical smog-era 70s head. :lol: Currently have 268H cam with stock bottom end. Many LATE 74 Z28 and Corvette L-82 applications used a Hi performance cast version of the 882 head . 000 Bore fixture The heads on my truck are of the 882 variety which need will need a good cleaning and re and re. 60 valves Jan 1, 2023 · Beginning in '71, the 882 head was also used on the 330-hp 350 and the 400 small-block. Both castings make two different part numbers one with the center intake bolt angle of 90 degrees to the port face these fit 55 through 86 intakes; then there is the 72 degree Aug 15, 2006 · I just bought a rebuilt 350 with a mild cam, 882 heads and a cast iron intake manifold for $1,000. Jun 11, 2001 · The 882's arent the greatest head but are the better choice of the 2if they arent cracked. Sep 28, 2011 · 23 Degree Heads VS. the 624 SMOG era heads? which were lightened / thinned versions of the 882 heads based upon what I've heard I had a set of 624 heads taken off with 14. Aluminum heads, like those bearing the 10134363 casting number, tend to be lighter and offer better heat dissipation, making them a staple for performance enthusiasts. I want to put on a set of 462 64cc heads what i'm looking for is what is the compression ratio on the motor and if i change to the 64cc does anyone know of a site that can help me out. Retrieved from "https://www Jan 5, 2014 · 333882 heads {been called the best of the WORST (light weight castings)}. 02 valves. Chris Sep 24, 2008 · This head is very similar to the 882 head tested earlier. 60 on motor. Dec 11, 2011 · With 882 heads (76cc chambers) it ran low 14's in the 1/4 mile with speeds in the low 90's. the engine is a 350 Steel crank, 4 bolt main, 9. Aug 26, 2014 · The Chevy 193 Heads are the 1987-1995 TBI 350 cylinder heads Grumpy. 8 hp 459. 458 Chevy LB4 Syclone N/A - N/A - - - - 165/119 72. 7 hp 206/145 70. Three-quarter-ton heads had No. 50 cam an lifters and access to z28 springs, what do you all think about this rebuild . 440lift 214*@. Originally, the stock #906 casting head was available in two versions. www. dont reuse the heads Re: 336 vs. 50, 600cfm edelbrock carb, Performer Oct 9, 2017 · The vortec head is a better flowing head than the 882 although to be used with that cam they will have to be machined to handle over . See full list on chevyguide. 5-1 compression or so. 191 castings; 1-ton used No. 50), big chamber (76cc), cast iron factory cylinder head. Jan 11, 2004 · While that is a good price on those heads, I don't think they would do you much good on a 327. They are 64 cc heads, so some provision will have to be made for dished pistons to run them on a 355 or 383 to keep c. 500 but with very light 3-angle valve job tested on SF-600 FlowBench Flow tested at 28" on 4. at a reasonable level for pump gas. my personal experience with 882 heads was with a 1977 olds Delta 88 with a chevy 350. With the set up it should have run 6. unless you plan on going to high comp with racing fuel. Mar 28, 2008 · They are crack pronemore so than any of the earlier 76cc heads. 50. Too bad shipping would be so crazy shipping those headsI need another 1. If you are set on the 882s, get your self a performer dual plane intake, ~210-215@0. Jul 11, 2005 · The 291's are the old double humps with 1. Dec 31, 2006 · By ALL means, regardless of brand or type of plug, use anti-sieze on the threads every time on aluminum heads ! I did not use it awhile back when changing the plugs in my Harley bagger, and when I went to remove the rear plug, it peeled the threads right out of the head :sad: It was an expensive lesson, but a good excuse to replace the stock heads with a better breathing set of Screamin Nov 15, 2005 · 193 posts · I am using 882 heads that I had rebuilt and ported some years back before I knew about head cc. 02 intake valves, the small block Chevy engine made a respectable 355hp peak at about 5,000 rpm and a big, fat table of torque Username Post: 881 heads? good as 882s? (Topic#60580) davidh Senior Member Posts: 562 Loc: Oklahoma Reg: 02-17-01 Am I going to see the difference between the two? The flow numbers stock vs stock are obviously night and day difference but these 882 heads have been worked over. 000 Bore fixture I say that for 3 reasons. THIS IS FOR A PAIR OF CYLINDER HEADS. 624, or 882. 60 valves available; latter machined for screw-in studs & guideplates: L: Right-facing bench 993: Common big-chamber head, not a lightweight casting; sim to 487; may have steam holes: M: One triangle: 882: Alternative marking for 882; see I, above: N: 2 triangles: 624 Mar 16, 2011 · Tech Help. 1st Hand I can say they do work nice in Chevy & GMC Trucks where you need lots of off idle torque & Midrange Power like for 4x4 & Towing duties. Dec 19, 2005 · The aluminum L98 heads (113 casting) are equal to the iron L98 heads on the int, and much better on the exh side, and slightly better than the 193 exh as well. See All 19 Photos. I have two questions & I'd appreciate your input: 1 Jul 6, 2019 · I bought a set of brodix track 1 220 runner heads from summit. Jan 27, 2015 · What GVX stated is the same thing that people stated about the 305 heads. It will go faster. 5 CR if i remeber correctly. And the 113 castings have a revised exh port shape than the 083s so that explains the exh flow difference. With that cam somewhere between 12-18 degrees initial timing with vacuum advance unhooked and 34 to 36 mechanical all in by 2500-3000 rpm would be ideal but all motors are different depending on other factors but that would be the ball park numbers anyways. #2) a 350 smogger with fresh v/v grind # 9889338, (very similar to the 882 casting,) and #3) a TPI/TBI 14102187 with 3 angle v/v grind. The issue is that everywhere I read says the 624 heads are absolute junk and not worth spending any money in them. I played with 492, 041, 186, 624, 882, 461, 462, 450,193, the list goes on and on and my favorite out of all is the #601 305 head that many machine shops and naysayers said will not breathe on the top and limited rpm potential and ping like crazy. The only problem that I see is that depending on the pistons you have, you compression ratio is probably only going to be around 8 1/2 to 1 Thats fine for a mostly stock engine but with a smaller chamber head like the ones that used to come on the 327's you would be up closer to 9 1/2 Nov 13, 2013 · the factory 882 cyl heads are about the worst small block chevy heads there are. but they max out at with a 5. 76cc 1. 7 74. So the 193 head actually makes good sense for a mild street build (low RPM torque). /270 exh. Updated July '10 — and were converted from 10" to 28". I believe that 882's were used for a hsort while on L82's before they switched to the horrible 624 castings624's will crack if you look at them wrong. vortec heads are a great lower cost option. Chevy Cylinder Head Pair SBC 5. 480/. I have a good 1980 K blazer engine, 3970010 4 bolt but I can't see wich heads are on it, they are the original from the truck, they are the ones with the sodium exhaust valves, are Aug 14, 2005 · The 882 head is the most produced chevy cylinder head over and above all other casting numbers. The reason that the earlier iterations of this engine cracked was due to the fact that they ran really hot. The also Jan 13, 2009 · As to heads for a 400, for my money the Dart SS heads have been a better investment than rebuilding most old heads, especially if you want screw in studs and bigger valves. Unfortunately the 487 heads are very prone to cracking in the exhaust valve seats. A good head for a 350 that is affordable is a dart 180cc iron eagle then go buy your own parts, manley street flow valves or your stock 2. Took the same heads bolted on a 434 still haven't check the heads bc well of course brand new set of heads right. Am I going to see the difference between the two? The flow numbers stock vs stock are obviously night and day difference but these 882 heads have been worked over. 02 / screw in studs / guide plates / Z28 springs etc. 1st your thinner casting 350 heads tend to crack easily and probably are already cracked. The 493 head was most often used on the '71 400 small-block, Apr 18, 2013 · This finishes up the chambers, then goes into the "SCREW" or REAL vortec head design. 8 hp - - - - 164. but on your budget i doubt you will see 500 hp. L98 Heads Trick Flow's 23 Degree Chevy Head vs. and would this be a direct replacement without modifying the computer. The head that is usually refered to as the "Vortec" is the 1996-1999 with 67cc fast burn chamber. Are 193 heads good? 193 is typical of most TBI ’87’95 iron heads, with half the intake valve-bowl approach blocked off—not good for serious performance. 5 rockers . If both heads are 1. 75 lift cam. preferably a torque engine. In addition to early heads, the 1986 and later Tuned Port Injected (TPI) 350 H. I used the DART SHP heads. May 7, 2007 · this is what i found on the heads: the 882's were installed on Chevrolet engines from 1974-1980. 80% 180/147 81. 07-03-02 04:09 PM - Post# 113461 Stock out of box 461x heads 1. 5 to 1 with a 64cc head. 2/122. My set was originally on a early 1990s 300hp/350 GMPP crate the one that pre-dated the 330hp HO. May 9, 2008 · 487x heads flow the best out of all the big chamber medium valve heads (1. 73 posi trying to make least 400hp I flowed and give results on sbc 882,441,487,and 487x heads. May 11, 2014 · But head replacement can get you into intake to head bolt up issues and rocker arm issues. Apr 7, 2017 · Neither 991 or 193 heads are any good for performance. These heads also have 1. Didn't run even close only a 7. 4 hp - - - - - - GM LS-1 204/- 2. The 882s are quite similar to 84-86E 462624 heads. But,from the Chevy mania website that has sbc serial numbers, they say these heads are extremely crack prone. Swirl Port Chevy Iron heads the 191's are. Oct 18, 2012 · I have stock 193 heads that i will be porting. '12. 02/1. zero decking the block is a good idea if your going to pull the engine down to change pistons. You can get 76cc / 2. your building a budget small block chevy what heads should you be looking for and what to stay away fromsee part 2 http://youtu. I installed them right out of the box on a 383 stroker. It is a 39700010 so a good block, but it came with 882 heads on it. 60 valves, screw-in rocker studs with guide plates Sep 21, 2009 · I have a sbc 400 2 bolt main out of a 1977 chevy truck the heads on it are the 882 76cc chamber. 461 vs. At 0. I seems like they are the first design smog head. There is no difference in deck surface between any of the lightweight castings including the vortec heads, the only difference I see is the 624's have a double exhaust crossover (may lead to excessive heat) and the Nov 10, 2021 · Original 461 camel hump heads have smaller runners than the 487 heads. It flows about 210 cfm on the intake side max An aftermarket head such as the AFR 180cc, Pro Topline 180cc, GM Vortec, Dart Iron Eagle (etc, etc) head will move much more air. com Jan 6, 2008 · I have to choose some heads before MONDAY My choices are some 993, 441, and 882 casting SBC heads(all the same price and valve size). 3rd your 305 head has a smaller chamber 52-60cc vs 76cc smog era 350 ones. Mar 21, 2011 · I have a set of gone threw 193 swirl port heads given to me they look jest like the vortec heads but there not iv been told there great ware torque is needed they have have 64cc combustion chambers because there swirl port heads i was told there only good up to 4,500rpm What do you guys think abo Dec 14, 2011 · With 882 heads (76cc chambers) it ran low 14's in the 1/4 mile with speeds in the low 90's. Thats to much for a mild cam and pump gas. YOU WILL NEED TO LET US KNOW IF YOU NEED THE ROUND OR SLOTTED PUSH ROD HOLES. 550 65 - 123/108 87. i guess what my question is. 10% 419. motors, such as the Pontiac Trans Am and Chevy Camaro, are worth having. With 86 comes self guided rockers so all of those heads lack push rod guides. After replacing the factory 882 heads with the 180cc RHS Mar 11, 2009 · 882 vs 492 heads (kinda long) Jump to Latest 21 - 31 of 31 Posts. The "Chevrolet Small-Block V-8 Interchange manual" by David Lewis states as follows: a lighter cast head was released sporting 1. 50 or 2. 0 mustang gt's! but one did crack months later. 94 Heads, i am hoping to make 350-375HP with them. This was due to the double heat riser passage. The choice between aluminum and cast iron cylinder heads largely affects performance and durability. Heads have the center bolt through valve cover. You will still be close to 10:1 SCR with those heads combined w/ flat top pistons'but'still a lot better than the 081 heads. There are not many heads in the $1k price range that flow as well as the IK's except maybe profiler but I would not use the ready to run version. 6ex, with a 3 angle valve job and some porting. The 200cc heads will probably allow your motor to breathe to ~6500 RPM which has the capability of creating more peak hp, but it will take away from the bottom end power a little. RHS Pro Action 180cc-HPWhen you realize a gain of 65 hp from a single component, you know you've made the right choice. Jan 20, 2015 · i recently built an engine using the same rotating kit you have except with a 5. Not a Good Head for Hotrod or Race Use. Swapping to a set of box-stock Dart IE 180's (72cc chambers) put me deep Jun 10, 2005 · Scoggin-Dickey sells these heads already modified, or if you have the stock heads already, you can modify them yourself. Let the vette restorers have the low po stuff. 050'' Lift:218° Intake / 226° Exhaust, valve lift with 1. True, Most early 882's were equipped with 1. When If you are just looking for a set of inexpensive aluminum heads to use on a street cruiser, the L-98 Corvette heads perform decently. 67% 219/172 Jun 2, 2011 · OK, I bought a block today just for the heck of it. 400-inch valve lift to the 882 head but is better by 15 cfm at 0. We would like to show you a description here but the site won’t allow us. Other than than the fact the 882's are crack prone, if you HAD to use one of the 3 which of the 3 castings would you use and why? Mar 8, 2007 · years ago i ran these 882's in high school and they worked good after a full comp port/polish, port match and 3 angle polished valves, they were good for 330hp , good enough to beat many 5. The valves are larger and the flow numbers at 0. etc. Oct 13, 2006 · Actually, similar results can be had from just about any small-valve(1. 000 Bore fixture Sep 28, 2011 · 23 Degree Heads VS. O. Jul 12, 2009 · Robert, The heads are not "junk", but they are nothing special either. Most flow numbers for DART heads were from DART or their Web Site updated Aug. Many classes of dirt track racing are restricted to these large chamber heads and the racers are looking for this casting number specifically. Text descriptions of the heads can also find text descriptions for each head type under the respective headings. On the plus side, the aluminum Corvette head offers a slightly better exhaust port than the older iron Jul 1, 2021 · 1985-earlier were pushrod guided, either by slots in the head casting itself or slotted steel guideplates. 455/406 Don't know about 336's but 882 flow pretty well. com ] Jun 2, 2023 · In this video we do a head to head comparison and discuss the facts, and also the pros and cons between the 624, 193 Swirl Port, and the 062 Vortec small bl Jun 7, 2006 · The 882 heads are smog heads from '74 to '80 and not very well regarded, but neither are stock '85 heads - if you can find out more about the 882's they may be better than your stock '85 heads - ie not only polished & ported but if milled so they will give higher compression and if valves were changed to 2. Jan 4, 2008 · well, i dunno about flow numbers, as has been stated, CHP has those figures in a chart. Round push rod holes. 6k miles on the engine and even with only 14. I compared these to a set of '96 vortec heads, '71 336x heads, a set of '74 993's, a set of '92 217's and a set of '92 193's. 60 exhaust valves in them. Do I just keep the heads Sep 18, 2013 · On this day of testing back in 06 I flowed 3 heads, #1) a HO head # 14101081 in used condition and cleaned up for testing. 94 I and 1. 355", 9/1 comp flat tops, . 02 valve form up to 375 horse stock. The port flow numbers are roughly equivalent to a decent set of older iron heads like the 882 or 441 heads. There's a company remaking 461 heads cast in aluminum, and with larger 180cc runners. This also shows the original shape, and how it needs to be altered to m Jan 27, 2014 · Are these heads any good 3832441 i wanna no if thoese heads are good or should i go with some vortecs from pick and pull i have a 355 sbc hooker headers holly 650 carb holley fuel pump 350 turbo trans with 3. Sep 18, 2008 · Exhaust port shape on Chevy small block heads confuses me. I've heard the 882's perform well if you can keep them from cracking. . 480'' Exhaust, and 111 lobe separation. The 193s use a swirl ramp under the intake valve so they flow slightly less that the 083s, but the 193s flow better on the exh side. PowerHeads purposely didn't go hog wild on the porting Turns out the mystery SBC EQ (Engine quest) heads flow quite well as cast! 600 HP Potential!Some Flow bench results comparing them to Vortecs and Iron eagles Jan 11, 2005 · edelbrock heads edelbrock heads are much cheaper than 1700 dollars. 94 valved 993 head, and can always add to my stash of 882's. How do these heads compare to Vortecs? I am assuming that the Vortec head is much better, given GMs 30 hp rating difference when they changed heads. Jan 27, 2014 · My question is what heads would be better for my car 882 or 193 swirl ports? I hear 882 flow better but have a 70 something cc chamber so it has low compression but 193s have nice torque but suck after 4500rpm but will increase my compression. _____ Dec 18, 2007 · I would not use the -896 heads on the 350, on the 283 yes. 5. I assume that the 882 refers to the serial number 333882. 76 cc combustion chambers. Keep 882 heads (already have crane springs), add an aluminum intake manifold ($140), 8" harmonic balancer ($60), new gasket set Mar 10, 2018 · They are Chevy 305 & 350 TBI Throttle Body Injection cylinder heads 1987-1995. 1 Mar 28, 2008 · I know this post is a couple of years old but it has good info about spark plug selection for L-31 Vortec heads. r. 450" lift cam, 882 heads, 2 plane intake, I was just working on some 882 heads, and was looking for input from others that have worked on them. Jun 7, 2004 · The 993 heads were used in 72-73 Chevy 350s, many of them were the 250 horsepower version. Engine Apr 28, 2007 · Here we go again, Put the humps on if they are in good shape they are far better flowing than the 882 castings. It gives around 11. Furtherore, I am leaning towards on older pair of used 882 heads, w/ no work done to them. These heads have chambers that look like they’ve inherited some smog-head characteristics, but they’re sufficiently removed to fall well short of that category. Good for a low rpm truck applicationand thats about it. 50 & 2. 6 rockers on a #193 head is kind of a waste of time and money. and on that un-named auction site go for $625-$650 a pair. (I have both) The intakes are much straighter in on the sides as they don't have to curve around the pushrod holes like on the 882's. 20 in a 2800 lb camaro. Best I can find is a fairly consistent >200cfm rating in the garage is a well used 350 wearing some heads with casting 993. The 993's have a much straighter shot to the intake valves than the 882's and the intakes are considerably larger appearing. SBC heads: Upgrade your engine's performance with Small Block Chevy Cylinder Heads. From Crankshaft Coalition Wiki. Before that Chevrolet used the 993, 487, 336 and 997 castings used from 72 to 84 on the lower compression engines. 9 at 110 mph. Feb 4, 2014 · "Not all late 882 heads were created equal. All flow numbers for CHW — Cylinder Head Works heads come from them Web Site updated April '10. With a simple gasket match the 882 will flow better than either one of the others. 94 intake valves and low rpm valve train. As for an estimate of power I can't say but if the vortec heads work well with the bottom end it has its a safe bet that it will have more power than it did. They are not exspensive heads. 94 valves flow almost as well and were used in 300 Mar 23, 2012 · Thumper cam, street dominator intake, 882 heads and powerglide is a recipie for a car that is slow AND gets terrible gas mileage. Advertised Duration 262 int. I think the reason this is common on both heads is that the 70s engines were set up with lean mixtures and retarded timing to get the exhaust temperatures higher for the early style catalytic converters. The flow numbers on 882s are not much less than small valve hump heads. com Apr 1, 1999 · The torquer offers great airflow for a low price with virtually identical flow at 0. Granted, they'll be small, like a performer or dart iron eagle 180, but still offer significant improvement over a stock head. The heads you have now have big chambers and the tiny 1. 02in and 1. Feb 12, 2008 · The 180 cc heads will most likely perform the best from idle to ~6000 RPM. May 26, 2014 · The 193's are TBI heads (1987-1995) and have intake runners of arund 150cc with swirl port design with a 67cc chamber - basically first generation Vortec. Lastly I have a set of 305 HO 601 heads with 1. Cast #193 (14102193) , are they any good? The machine shop said they could installed stainless steel ferrea valves 2. The car has run 11. With prices to rebuild stock heads increasing all the time these heads would probably be one of your better investments. Do you guys think these heads are worth all this effort? I'm I better off looking for another set of heads? Thanks In this video Robert discusses all the details about the 193 and 192 (Swirl Port) Small Block Chevy Heads!Remember to LIKE and SUBSCRIBE!Follow us on social Apr 3, 2013 · Brown's '90 12-ton truck heads should be a No. Engine Mar 22, 2020 · The heads are casting 882. can my heads except this Dec 22, 2005 · The chamber is identical to the 350 iron heads that has casting suffix 193. can my heads except this Apr 18, 2013 · This finishes up the chambers, then goes into the "SCREW" or REAL vortec head design. There are other casting numbers but the 193/187 are very common. omniapartners. AFR's two piece guides are a lot easier to deal with but a higher price point. The speed pro pistons were listed with a 9. Oct 23, 2021 · What are 882 Chevy Heads. 50) these are highly sought after and would give you a small performance boost over your 624 or 882 heads. The 200cc heads with the 64cc chamber. SBC cylinder head identification. Casting number is 191 or 193 on these heads. 50 valves. Sep 15, 2021 · Are you thinking of the 882 heads vs. 84 valves. In contrast, cast iron Just as a comparison it went much harder than an identical 350 running the more common 882 heads. Jul 20, 2010 · C3 Tech/Performance - Best Iron heads for cheap? - Looking to spend around $250 or so for some good easy bolt on iron heads. so the edelbrocks might be worth looking into. 71- 76 76cc, best large-chamber head; 1. Jun 28, 2010 · I don't know what type of heads you got and I am assuming its a 350 sbc. The 487 have 180cc runners, while the 461 has 160cc runners. I also have a set of 993's off a 72 350. Jun 17, 2022 · I got my heads checked at the machine shop and one was cracked, so they gave me a replacement rebuilt head. The 991's are large chamber heads thus low compression without a lot of milling and or piston changes. 24% 421. The catch with performance engines is you can usually find ready to run, used aftermarket heads for $450-500. Jan 13, 2009 · 882s could be called the best of the worst. i had a set of 441's that were 1972 models and they had 1. Chevy '882 CCM 151/59 1. niether heads has 2. the 882 heads were installed on the 350ci and 400ci engines (400 heads had steam holes). 480 lift with 230/230 Duration at 0. it is one of the worst flowing SBC heads ever made. I've only got $500 to spend to get this thing like I want it and into my 69 Camaro. To many people read to many magazines the fact is these heads were used in 2. After a couple of years of not working on it (saving up money for parts) I have started to work on it again. Just a set of decent small block heads. Nov 24, 2002 · if you have the 487 heads use them, they are old style castings, heavy, but watch the valve seats. Feb 1, 2006 · I didn't post the original question. /224 exh. Feb 20, 2011 · I hear a lot of mixed reviews on the 882s. May 24, 2012 · 14102193 heads are like 65 to 66 cc found in truck 350, while 14102187 (used in 305) heads were around 55 to 58 depending on the casting. 940/1. 500-inch lift the flow is up 15% over the 882 head. Jan 29, 2010 · i always heard the heads that came on the 400's were the worst 76cc head to use,, i don't think they came with a 882 head ,,, if u have to do any work at all on old stock heads ,, they can become a money pit real fast , check out the EQ stock replacement heads ,, it looks like a real value to me for stock replacement Jan 1, 2007 · Stock 882 vs. The 882 heads are also prone to cracking in the exhaust ports. I am looking for an inexpenisve iron head to replace them with. Feb 15, 2008 · In my opinion the BowTie head is far above any of the other castings you have mentioned, but to put it in perspective, it is still less of a head performance wise than a typical 200cc runner Dart/World style head, and maybe (in certain aspects- chamber design- port height-etc) not as good of a street head as a typical Vortec. Dec 28, 2007 · for a mild street engine wich heads would you choose 882 or 487 ? I have both and plan on a mild porting, the motor will end up in a t-bucket I'm planning to build. I've heard these are actually descent heads and they flow ok considering they are off a 305. All flow numbers for CNC Heads UK come from their Web Site. It will make good power up til 4500 or so. 94 valves and unported probable only 20 to 30 hp difference. There are different variations of the 882 head, which has been stated already. the 1. 000/1. 7 rod. Bascially here are my options. What are the 882 flow numbers Jun 8, 2021 · To determine what type of heads are on your small block Chevy, take a look at the illustrations below for 'Early' or 'Late' Style, Aftermarket Aluminum SBC heads, Aftermarket Cast Iron heads, and other SBC cylinder heads. 02 etc they will be better than what you have now. May 30, 2006 · Not knowing the exact specs on your 383 its hard to be accurate but most 383s with flat top pistons will be around 10. They are more preferred over the 882 head due to their heavier casting. 6k miles on them, they had a crack in one exhaust seat Like Class Action Lawsuit level of terrible. May 13, 2009 · Spark plug position and chamber looks a little better than the early 64cc heads. The exhaust crossover was redesigned and may contribute to the cracking between the center exhaust ports that these heads are prone to do. Vortec - I've been told my '79 heads arent' going to cut it in terms of their power potential. The 86 thorugh 95 heads use a different bolt angle alongside the plenum. The bump in compression will help also probably a 20 to 30 h. If you went with the 180cc heads, I think the XE274H cam would be best. I'm afraid the heads might need alot of work. Both are great Mar 7, 2003 · C3 Tech/Performance - 882 vs. Jump to: navigation, search. Cast Iron. Stock for stock, I swapped the 882's for 487 casting on a L82-77 vette. Jan 7, 2010 · Stock out of box 461x heads 1. If there is a difference, is it going to be $1500 worth of difference? Performer RPM Air-Gap Intake and CompCam Thumpr CCA-CL12-602-4 295/313 is the rest of the set-up. Those were great heads in their time, but pretty constricted flow compared to almost any SBC head today. Some of these even had 2. Not worth spending a dime on if you are shooting for more than 275 hp. 500-inch valve lift. The exhaust can be bumped up to really high flow numbers. Jan 20, 2005 · The ones I have have longer narrow holes which is why the intakes are better than the 882. Its not super big power but decent. 193 casting like this. May 13, 2004 · What do you guys think of these heads. I have the Heads off the 1994 K1500 Suburban. 462'' Intake / . ruai typbl atkd ozjys xxf ufej kyc ngqikbk aab ovni

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