Reply to "Dropped a valve..."

joules"Racing is Life, anything before or after is just waiting" - Steve McQueen

I previously had a long discussion with my engine rebuilder on rev limits, he bases it on max piston speed, so strokers naturally do not rev as high, you are relying on the higher torque (which is what you want anyway).

For a heavy duty engine with forged crank & pistons 4,000 feet per minute piston speed is the recommended max; for a 408 that equates to 6,000 rpm rev limit. This somewhat subject to valvetrain components being equally capable, but a good rule of thumb IMO.

Julian

5/23/113:22 PM

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