sorry but which ones are these?
sorry but which ones are these?
Mike
07 Avalanche LT1 w/5.3 We call her Ava
They are the 72/70cc heads. They come off a 6.0, and flow the same as the 243/799 heads, but just have bigger chamber. Good for going boost.Originally Posted by flynn78us
what compression ratio would they yield on a 5.3?
low. Im thinking like 8.5-8.8 CR. Good for a turbo. But would be a gutless pig for NA.
Yeah thats what I thought, thanks for the info.
Mike
07 Avalanche LT1 w/5.3 We call her Ava
Yup, was gonna put them on my LS6 but didn't want to sacrifice the HP loss. Looking for some 243's.
2000 Chevy Silverado RCSB LS6 5 speed, LS6 short block, 317 heads, LS6 intake, Lunati 220/224 .575/.575 112LSA cam, Edelbrock Headers, CTS-V accessory drive, Nelson Performance Custom Tune.
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