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Few size limitation questions

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Old 05-23-2010, 12:40 AM
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Default Few size limitation questions

Im building a lq4or9 based twin turbo motor. I currently have some 317 heads, and im wonder the size limitation of the bore vs the head. What bore size is a set of 317 good up to ? LOL im still new to this, so im just trying to get some detailed answers if anyone has some.

Originally i was thinking of doing a 370 build, but the more and more i think of it, i want to build a 408, but idk if the heads will be to small the the larger bore of the 408
Old 05-25-2010, 09:17 PM
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anyone ?
Old 05-26-2010, 12:19 PM
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How much power are you going for?
Old 05-26-2010, 07:08 PM
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Many people have put 317 heads on 4.125" bore blocks.
Old 05-26-2010, 07:38 PM
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A 370 and a 408 have the same 4.03" bore. Those heads will be fine.




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