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Couple other things to consider.

Number one – bigger pistons shorter stroke makes more power. The main reason is that when the stroke is increased, the pistons (and there by the rings) travel...

Also good call by Gassersrule. I love the sound of those huge secondaries coming to life on the quadrajet!

Good call Techinspector - the Performer RPM is a 7161 for the BB Chevy.

A couple things to remember/consider as you contemplate your engine build. The 396/402 and 427 all used the same (stroke is 3.76) crank. The bores obviously are different. In their stock...