How to raise rpm redline on SBC?

Deuces · Jun 3, 2011

gjones said: ↑

First thing you need is a trustworthy speedshop machinist. You need a forged steel small journal crankshaft, have it turned down .020" for both rods and mains. You need extra rod and main bearing clearance, maybe 0.003". Have your motor internally and externally balanced. My favorite combo is a 400 sbc that is 0.030" over, with a 327 crankshaft. This combo will spin good RPMs no problem. It's all about less stroke, bearing clearance, balanced internals. You could do this all with stock factory parts. The machine work is the only thing that will cost you and that isn't too expensive.
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Sounds like a good combo... I just don't like the idea of using main bearing spacers for the crank...

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How to raise rpm redline on SBC?

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