Join Date: Sep 1999
Location: Vancouver, WA, near Portland, OR
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Re: RV Camshft Selection
Let me stir the pot a little. I put the Comp Cams 260 in my 401 way back when. I always regretted afterwards not going with the 255 instead. Had a mild lope and 9-10 mgp depending on winter or summer with a/c running. Of course it was a tank, (Wagoneer). But I'm sure it would have had better low-end, idle and mpg with the 255. Even better yet would have been a stock replacement cam. My two current Jeep's engines were built with RV cams. The V-6 had the Edelbrock Performer cam, (which is nothing more than a copy of the old TRW EP-2 cam). Both engines had the same slight lope to the idle and less than desireable low-end and mpg. I have since replaced both engine's cams with Sealed Power, (Federal Mogul), stock replacement cams and the difference is phenomenal. Silky-smooth idle, better mpg and gobs more low-end grunt. Like comparing a tired worn-out engine to a brand new one. Now I think the other cams will develope more HP, but at an rpm that most rarely use and at the sacrifice of power in the range we all use. I will never use anything but a Sealed Power stock replacement cam for any future rebuilds unless I decide to take up racing.
'66 Jeepster Commando w/Buick 252/4.1L V-6
'70 Wagoneer w/Buick 350 V-8
'76 Wagoneer w/AMC 401 V-8 (sold)