317 vs. 243 heads
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Teching In
Joined: Jul 2008
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317 vs. 243 heads I've been looking into one of these sets of heads. I can get 317's for under $200 in useable shape. The 243's are gonna be around $400-450. I plan on having the 317's milled to the 243 chamber size, what kind of power over my stock 02 ls1 heads will the 317's milled, or the 243's make?
15 rwhp should be a decent guess
not sure the 317s can be milled that much but I might be wrong...look for some 799, same heads as the 243 but usually sell cheaper, I got mine for around $250 shipped
not sure the 317s can be milled that much but I might be wrong...look for some 799, same heads as the 243 but usually sell cheaper, I got mine for around $250 shipped
799's and 243's are the same.
if you can change out your pistons, go with a domed piston and some 317's....
and i dont think 317s can be milled down to 64cc....
as another option, look at adding aluminum to the combustion chamber, if thats an option
if you can change out your pistons, go with a domed piston and some 317's....
and i dont think 317s can be milled down to 64cc....
as another option, look at adding aluminum to the combustion chamber, if thats an option
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