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Originally Posted by zraffz
My heads might flow right around that and but my cam is a bit more agressive. Guess I'll never know for sure but I'm more interested in what it will run more than anything.
Can't really believe crate motors are rated that way. I've seen quiet a few boasting larger numbers than I could really believe possible with the top end they had. I think companies like GMP rate them SAE net but most don't.
For instance they rate a stock rebuilt LT1 long block at 330HP/350TQ in Summit.
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I think you really need to look at a builder's reputation in terms of stated vs actual power output for crate motors. With Lingenfelter's reputation, I would doubt that an identical motor would be 20 to 40hp down compared to their rating (at least I hope that isn't the case).
GM has a really bad reputation for crate motors not coming close to their ratings - the ZZ4 comes to mind instantly - it was rated at 345hp, but really puts out 290 to 315 when setup as they suggest, a huge gap. I'm sure that the 260hp motor mentioned in this thread is more of the same.
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1984 Camaro: 350 Auto, Global West Suspension, Baer Brakes, CTW Wheels
1989 GTA: Bolt-on L98. Global West Suspension, full Magnaflow exhaust, Wilwood Brakes, CTW Wheels
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