Help, mismatched cylinder heads: 3998920 & 3986336
07-17-2003, 10:15 PM
#1
Team Owner
Thread Starter
Help, mismatched cylinder heads: 3998920 & 3986336
Anybody have any specs on these besides that they're cast iron and ....
3998920....72-73...350
3986336....71......350..........76cc chamber
Thats what I got from Mortec.com
They are on a friend of mine father's 1970 vette he recently purchased and is trying to figure out if they're the same specs or not. More specifically if hte x920 is also 76cc like the x336 is. I guess he found out that the valves are the same sizes.
[Modified by scorp508, 10:16 PM 7/17/2003]
3998920....72-73...350
3986336....71......350..........76cc chamber
Thats what I got from Mortec.com
They are on a friend of mine father's 1970 vette he recently purchased and is trying to figure out if they're the same specs or not. More specifically if hte x920 is also 76cc like the x336 is. I guess he found out that the valves are the same sizes.
[Modified by scorp508, 10:16 PM 7/17/2003]
07-17-2003, 10:57 PM
#2
Le Mans Master
Re: Help, mismatched cylinder heads: 3998920 & 3986336 (scorp508)
scorp i replied in the c3 section also,world products list the 920's as replacements for there 76cc torquer heads so ill say there 76cc also.
