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tincan1966 · 10-01-2013, 07:54 AM

The RPM limit of an engine is determined by the parts in it.

trying to achieve 7000+ rpm with stock rods and pistons is probably not a good idea. Also, the stock valvetrain will not sustain that type of use.

Sounds like you're trying to build on the cheap side, but yet have a high rpm, high horsepower engine. Those don't happen together.
What are you wanting to do with the engine? And how high rpm are you wanting? For a street-driven truck, how much rpm do you really need?

10-01-2013, 07:54 AM	#4
tincan1966 Registered User Join Date: Oct 2010 Location: Independence,KS Posts: 1,477	Re: 327 small journal crank The RPM limit of an engine is determined by the parts in it. trying to achieve 7000+ rpm with stock rods and pistons is probably not a good idea. Also, the stock valvetrain will not sustain that type of use. Sounds like you're trying to build on the cheap side, but yet have a high rpm, high horsepower engine. Those don't happen together. What are you wanting to do with the engine? And how high rpm are you wanting? For a street-driven truck, how much rpm do you really need?