Clevor info

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Dec 2, 2015 | 06:48 PM

brehenkel

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Joined: Jan 2013

Posts: 70

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From: Milan, Indiana

Clevor info

I just wanted to share my experience to show another piston option for a Clevor motor. When I as boring my 351W block I ran into issues and there was still a little staining at .040 overbore. This put me in a scenario with my crank and rods already bought. With my combination I have a 4 inch stroke scat crank, 6.250 scat rods and the pistons I located were a Icon forged piston number IC-875. I had to use a .060 over piston but they also make .030 as well. With this combo it will make the motor 414 cubic inches. With my stroke and rod combo and their pin height of 1.241 it comes out 0 deck with a true 9.5 deck height. It has a 11cc dish and with the 2v open heads it yields around 9.8:1 compression. I am running a set of trick flow power port 190 Cleveland aluminum heads with the 72cc chambers and they yield 10.25:1 compression so still can run pump gas. With my cam specs I only end up with 8.2:1 dynamic compression. Just throwing this out there if anyone is in a pinch trying to find a combo to build a Clevor. Hope to have the motor on the dyno soon to get some numbers. Building this motor for my 84 F150 flareside 4x4.

Dec 2, 2015 | 09:12 PM

PaulT81f150

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Joined: May 2010

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That will be a fun truck with that powerplant. Interested to see what the dyno will show.

Dec 3, 2015 | 06:38 PM

Franklin2

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Joined: Jan 2001

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From: Virginia

Are those pistons special made for that head swap? I thought you needed special pistons with valve reliefs for the canted valves in the cleveland heads. Using regular windsor pistons will work and clear the valves, but the compression is too low to run very good.