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Thread: 350 ZZ4 crate MAX RPM
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04-05-2006 #1
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The compression does not directly effect RPM range. The #1 factor is engine RPM range is the camshaft, that said as you increase duration of the cam, you generally want to increase compression as well.
You can get a higher duration cam for the ZZ4, BUT it does have a hydrallic roller cam, and all hyd lifters pump up ~6200RPM so its not a great idea to rev it much past that.
The DZ302 had a factory redline of 7000RPM in street trim, and much higher in race cars.
1971 Camaro, 383 stroker ~500HP,M21 Trans with lightened flywheel. All Sorts of Auto-x Goodness in the Suspension. 12" Brakes ->SOLD
But ask me about my 2004 STi Auto-x car...
Just call me Brett
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