how much are stock LT1 heads worth?
#6
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Depends on the casting. If you're buying the heads to get ported then the most desirable casting numbers end in '374' and '643.' They're usually found in the earlier model LT1s. The later model LT1s typically flowed slightly more from the factory, but don't have as much material to work with when a porter/machine shop gets his/her hands on them.
#7
Originally Posted by WhyHelloOfficer
Depends on the casting. If you're buying the heads to get ported then the most desirable casting numbers end in '374' and '643.' They're usually found in the earlier model LT1s. The later model LT1s typically flowed slightly more from the factory, but don't have as much material to work with when a porter/machine shop gets his/her hands on them.
and also if anyone knows were all the data on these can be found id appreciate. by that i mean (year, avail castings, compression ratio, and whatever else) Ive got a 95 and if the compression ratio is different id like to know about it haha.
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#8
Originally Posted by JoeliusZ28
dang, the heads im looking at are off of a 97. is the difference that significant? Im not looking to squeeze every last hp out of these things but id like something better than what ive got.
and also if anyone knows were all the data on these can be found id appreciate. by that i mean (year, avail castings, compression ratio, and whatever else) Ive got a 95 and if the compression ratio is different id like to know about it haha.
and also if anyone knows were all the data on these can be found id appreciate. by that i mean (year, avail castings, compression ratio, and whatever else) Ive got a 95 and if the compression ratio is different id like to know about it haha.
Those heads are going to be fine....
Its when you trying to ring the ever living **** out of your setup you would want those heads..