243 Vs. 317 Heads
12-03-2006, 12:23 AM
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243 Vs. 317 Heads Which head would be better on a 423" LQ9? The 317's were stage 3 ported by ARE. The 243's are stock, but could be ported. Current cam is a Texas Giant, but could be and probably will be changed.
12-03-2006, 10:28 AM
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Originally Posted by GuitsBoy
Depends on your setup. What CC pistons? How far do they pop out of the block? What compression are you looking for? Assuming you have the 243s ported, all will be equal except the combustion chamber size.
