Quote:
Originally Posted by ponjohn
No it isn't.
The cams you speak of are XE274 XE284...
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The 51-314-4 is listed as an "Extreme Energy Drag" series cam. To me, that makes it an XE cam.
http://ronspontiacpage.com/reference-pages/comp.htm
Maybe this is an old, out of date CC listing. I have no idea.
It appears that this exact same cam is now listed as a "Magnum Muscle" series cam, instead of XE Drag. Don't know exactly when the name change came. ???
https://www.summitracing.com/parts/c...w/make/pontiac
The XE274 has 44 degrees difference between adv dur & @ .050 dur. The 51-314-4 has 48 degrees difference. They both look like steep ramp cams to me.
https://www.summitracing.com/parts/cca-51-224-4
The 51-116-3 has 61 degrees difference. That is definitely not a steep ramp cam.
http://www.compcams.com/Company/CC/c...px?csid=6&sb=0