#1 Member
Join Date: Jan 2000
Location: CT
Posts: 105
Car: 1989 Chevrolet Camaro IROC-Z
Engine: 5.7L TPI
Transmission: WC T-5
L98 Heads - cc volume
What is the combustion chamber volume of the L98 Iron heads? I cannot remember (getting old) and can only find numbers for the aluminum (58cc).
#2 Supreme Member
Join Date: Jul 1999
Location: Oakdale, Ca
Posts: 4,311
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
No clue on the flow numbers, but the chambers are supposed to be 64cc's.
#3 Senior Member
Join Date: Oct 2001
Location: Starkville, MS
Posts: 571
Car: 1991 Camaro Z28
Engine: 350
Transmission: 700R4
I seached on the board and found these numbers
350 Cast Iron # 083
Lift/Intake/Exhaust
.100 44 41
.200 101 82
.300 155 125
.400 182 137
.500 196 140
They came from
http://www.thirdgen.org/techbb2/sho...?threadid=43197
In case ya wanna see what else was written.
Hope it helps.
David
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1991 Camaro Z28 L98
Hooker headers, 3" Random Tech cat, Hooker 3" Catback, TB Bypass and Ram Air/gutted airbox, Comp 8-302-8 Cam, SLP Runners, Vortec heads, SDPC Base.
14.5@96
241 RWHP 316 RWTQ
Before heads and prom.
My little page:
www.geocities.com/viper450gts/Camaro.html
#4 Member
Join Date: Jan 2000
Location: CT
Posts: 105
Car: 1989 Chevrolet Camaro IROC-Z
Engine: 5.7L TPI
Transmission: WC T-5
Thanks for the info 8Mike9.
#5 Banned
Join Date: Jul 2001
Location: pgh pa usa
Posts: 64
the cast steel heads are 76 cc the same plain jane heads they put on everything else
#6 Suspended
Join Date: Jul 1999
Location: Other side of the paper fence
Posts: 10,199
Car: Race car
Engine: Internal Combustion
Transmission: Static
Same as other post, all the L98's I've had apart have 64cc heads. Measured them myself.
#7 Banned
Join Date: Jul 2001
Location: pgh pa usa
Posts: 64
like i said the vette steels i measured were 76cc dont know i never cc a camaro head but i thought they should be the same dont know
#8 Suspended
Join Date: Jul 1999
Location: Other side of the paper fence
Posts: 10,199
Car: Race car
Engine: Internal Combustion
Transmission: Static
Apparently not.
#9 Banned
Join Date: Jul 2001
Location: pgh pa usa
Posts: 64
what do the stock pistons look like in the 350 camaro engine the vettes are forged flat tops with 2 valve reliefs
#10 Suspended
Join Date: Jul 1999
Location: Other side of the paper fence
Posts: 10,199
Car: Race car
Engine: Internal Combustion
Transmission: Static
I'd have to look to see if they have a slight dish or not (I think they do) but there are 4 valve reliefs and they are not forged.
#11 Banned
Join Date: Jul 2001
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Posts: 64
that is probally the difference they put smaller chambers on the heads and put a dished 4 valve relief piston in there to keep the comp the same
#12 Member
Join Date: Jan 2000
Location: CT
Posts: 105
Car: 1989 Chevrolet Camaro IROC-Z
Engine: 5.7L TPI
Transmission: WC T-5
OK, what about the Corvette L98 aluminum heads? Are they 58, 64, or the 76 cc that seems to be out there?
#13 Banned
Join Date: Jul 2001
Location: pgh pa usa
Posts: 64
YES THEY ARE 58 CC THE COMP WOULD JUMP APPROX .8 OF A POINT ON A 350 ENGINE
#14 Senior Member
Join Date: Jul 2001
Location: texas
Posts: 943
85 was the only year forged pistons were used in vettes, but yeah iron vette heads had 76cc's and f-bodies had 64cc's
Last edited by u r sofa king we tah did; 02-08-2002 at 07:02 PM .
#15 Senior Member
Join Date: Mar 2001
Location: The State of Hockey
Posts: 2,044
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 730 ECM
Transmission: TH700R4, 3000 stall
Axle/Gears: 9", 4.33:1
Quote:
Originally posted by madmax Apparently not.
ROFL!!!! :lala:
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1987 GTA / Miniram'd 383/ TH700R4 3000RPM stall / 9" w/4.33s :
Far from stock, far from done.... Link to the GTA 1999 Trans Am / LS1 / T56 :
Patriot Heads and Cam, the usual bolt ons... Link to the Trans Am
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1992 Camaro
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Tags 1991 , 76cc , camaro , cc , ccs , chamber , chevrolet , combustion , compression , corvette , heads , l98 , piston , ratio , tpi , volume
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