Thread: 327 Build Cam Selection

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Originally Posted by rumrumm

I like the Magnum cam line, and I ran a 270 Magnum in a 327 some years ago and really liked it. The one thing you have to check is the DCR. A Magnum cam will allow you a little more static compression than an XE cam because the intake valve closes later. To give you an example, when I was choosing a cam for my 383, I was looking at the XE-274, but with 10.6:1 static compression, it pushed the DCR to 8.64. But with the 280 Magnum, the DCR was 8.44 which is acceptable for aluminum heads and 91 octane. Because you want to stay under 8.0 DCR with iron heads. Your best bet is the XE-274 or the Magnum 280 or something comparable from Crane, Crower, or Lunati. Because you have a 4-speed, you can go bigger on the cam and still have decent street manners. I don't think either of these cams would be good with an automatic transmission.

well...I decided on the 280H... its 230/230 @.050" .480" lift, 110 LSA. It should get me 7.85 -7.9 DCR. Hopeing that will be safe with the iron heads. Might be a little softer on the bottom end but should sound great. I had the old L79 cam in there before with less static compression, poor squish, and it bleeds off a lot more compression than the 280H. I thought it ran well so this should be a good cam. Thanks for the help boys...