engine ratings
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From: Edmonton, Alberta
Car: 1990 Iroc-z
Engine: LS1
Transmission: T56
LB9 power ratings
i'm new to this message board but i couldn't find any listings for the engine internal power ratings. specifically, the crank, rods, and pistons. thanks for the help
Last edited by mikey_b; Mar 16, 2004 at 01:30 AM.
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Which engine? The safe maximum power varies widely. And safe peak power is dependent upon RPM as well. There were almost fifty years of SBC engines, with various crankshaft designs, material specifications, and weights. Same for con rods and pistons. About the only consistent item was the weak 85# valve springs.
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