442 85 442 Flat Tappet CCC Cam Swap??

69hurstolds

Geezer
Supporting Member
Jan 2, 2006
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Was looking at a Comp Cams 218/218 as a potential swap for a stock 85 VIN 9 cam. Something the stock ECM can handle, as well as not kill any more performance than what these 307s don't have to begin with. My main concern is that it doesn't run stupid or make things worse than stock and the ECM can keep stock calibration, but yet be a tad more modern. It looks like a minimal change in specs, but you know how these things can be tricky.

Comp Cam specs.
0.456/0.456 lift, 268/268 adv dur, 110LSA.

COMP Cams High Energy 218/218 Hydraulic Flat Cam for Oldsmobile 260-455 - COMP Cams®

For comparisons:

Original VIN 9 cam specs...

0.440/0.440 lift, 196/208 @0.050 lift duration, 256/270 adv dur, 109LSA

Anyone do a cam swap with maintaining the CCC? Just wondering out loud.
 

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