It's been a while since I've been active here, or working on my mopar project but here is a refresher.
So I am building a '99 Magnum 360 motor for a 71 Scamp. Car supposedly has a "built" 727 3-speed and a stock 7.25" rear end. I have a posi carrier with 2.96 gears to drop in place of the 2.76 peg leg in there now. I also have an 8-3/4" rear end I will build up in the future.
Motor is .030 over, has flat top pistons with 5cc valve reliefs, and has been zero-decked - ready to assemble, just need to pick a cam. Static compression will be around 10.6:1. Though this is a roller block and I have the spider, I don't have the roller lifters, and considering the cost of a roller cam, I was thinking about staying flat tappet hydraulic.
Following the lead from several members here, I was going to us the Comp XE268H cam, but I was also looking at the Lunati 60402 voodoo cam. I realize the 60402 is a bit smaller than the XE268H and is actually closer to the XS262H cam, but I wonder how much cam I really need...
The 60402 Specs are
262/268 Advertised Duration
220/226 duration at .050
112 LSA, 108 ICL is 4 degrees adv
.475/.494 lift at valve
INT opens at 2, closes at 38
EXT opens at 49, closes at -3
The XE268H Specs are
268/280 Advertised Duration
224/230 duration at .050
110 LSA, 106 ICL is 4 degrees adv
.477/.480 lift at valve
INT opens at 28, closes at 60
EXT opens at 74, closes at 26
-values at .006" lift
From what I have read on other boards, the voodoo cams seem to be a evolution in development of the comp grinds and can be more gentle on the valve train. I am interested in longevity and "best fit" for the car, plus the voodoo cam seems a bit tamer on a 112 LSA.
The car will honestly be a weekend driver and I will be looking for an OD trans at some point to add some fwy economy, but for now, it's just a fun runner that I don't want to go broke filling the tank on.
Looking for advice and opinions please.
