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Old 12-17-2015, 02:43 PM
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SSLance SSLance is offline
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I have pretty much narrowed my cam choices down to these two:


The cam for the SP383

Duration at 050 inch Lift: 222 int./230 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.509 int./0.528 exh.
Lobe Separation (degrees): 112

And the Comp cams XR276

Duration at 050 inch Lift: 224 int./230 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.502 int./0.510 exh.
Lobe Separation (degrees): 110


Is my interpretation correct that the 110 degree lobe separation of the Comp Cam XR276 will bring the power band in just a bit lower in the RPM range than the 112 degree SP383 cam if everything else was the same?

I can put my hands on a pretty fresh XR276 for a great price and I'd have to buy the SP383 cam new. Either way not a big deal, but every penny helps.
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