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).

Thanks for the help.

Also, anyone know the flow numbers on the irons, intake and exhaust (stock form), for comparison.

 

No clue on the flow numbers, but the chambers are supposed to be 64cc's.

 

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 https://www.thirdgen.org/techbb2/sho...?threadid=43197

In case ya wanna see what else was written.

Hope it helps.

David

 

Thanks for the info 8Mike9.

Black 91 Z28, thanks for digging up these numbers. I really wanted to have something to compare with. This really helps.

 

the cast steel heads are 76 cc the same plain jane heads they put on everything else

 

Same as other post, all the L98's I've had apart have 64cc heads. Measured them myself.

 

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

 

Apparently not.
Very strange.

 

what do the stock pistons look like in the 350 camaro engine the vettes are forged flat tops with 2 valve reliefs

 

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.

 

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

 

OK, what about the Corvette L98 aluminum heads? Are they 58, 64, or the 76 cc that seems to be out there?

If they are 58, what would the compression ratio be on a Camaro L98 with stock pistons?

 

YES THEY ARE 58 CC THE COMP WOULD JUMP APPROX .8 OF A POINT ON A 350 ENGINE

 

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

 

ROFL!!!! :lala: