02-03-2011, 04:53 PM
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#30
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1 n the head,2 n da chest
Drives: 2002 cadillac deville
Join Date: Apr 2010
Location: huntsville al.
Posts: 659
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Quote:
Originally Posted by radz28
They are not L88 heads. I can't remember which way it went, but L88s were open chamber heads and ZL1 heads were closed chamber (or vise versa  . I have an article, from Hot Rod, when they released ZL1, and it had all the differences from L88. I know gross numbers and the net numbers are different, though. I haven't seen any net numbers on ZL1, so I can't really comment on that.
It seems a LS7 doesn't have to rev' to 7500 for good numbers. It makes peak at what, around 6000? Port volume is a lot greater (what, like 360ccs). |
i wasnt talking a 7 liter ls7. the comparison is ls3 and ZL1.
if a ls3 wants to compete all-out it would need to rev very high to do it. to get to 550 gross hp a LS3 would need very little.
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2011GT E85, Kooks 1-7/8", 3" offroad X, 2-7/8" overaxles, Roush mufflers, CobraJet intake, SCJ monoblade throttle body, drew 4.5" CAI, Boss302S exhaust valve springs, Baby CobraJet exhaust cams. 3.73 gears, lightweight 300A. 455rwhp @7800/410rwtq SAE 5000lb roller dynojet
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