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8.1L conversion

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Old 01-04-2007, 06:02 PM
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I think it was 280x. It was the biggest Comp listed. If you do a cam, you'll need springs too. The one I have now is Raylar's 106, it's much to big for stock pistons.
Old 01-04-2007, 06:42 PM
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are you running raylars heads and intake also?
Old 01-04-2007, 06:45 PM
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Yes sir!
Old 01-14-2007, 12:01 AM
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I had a 8.1L in my 67 short bed pickup for a while. It was a torque monster. My truck weighed in at 4100 lbs with the motor and me in it! 3.73:1, TH400 trans, and a posi.

After I put a GM ZZ502 camshaft in it ... it would start to break tires loose in drive just mashing on it at about 55 mph.

Yes, the ZZ502 cam changes the firing order, I did not use OE PCM, Megasquirt.

Piston blew up on me, that was end of the 8.1
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