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Re: Custom billet BLING, diamond pistons for the R5 P7
[Re: DemonDust]
#1856290
06/24/15 11:52 PM
06/24/15 11:52 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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Compression wrecked Bobs engine due to the wrong rocker arm length? Or just the rocker length in general?
This engine was already running, I put over 2000 miles on it. Just refreshing everything now. Only change is a little less stroke and compression ratio. Read post again. Compression had nothing to do with the exhaust valve breaking. The pistons were original NASCAR. One got trashed by the valve. He had new domes built for it. Sold car before assembling engine. I bought assembled and saw no increase in power. Mph is power. Others like Eatman, Arrigtin, EEI did not find power with domes.
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Custom billet BLING, diamond pistons for the R5 P7
[Re: scottb]
#1856872
06/25/15 06:55 PM
06/25/15 06:55 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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Drag race W8 combos ran larger than 4.2 bore where you are 4.182". P7 valve angles are also different. The whole shape and design of a W8 drag race head is different.
I truly hope I am wrong. Hope you have the ticket. Just know my experience. Could have sold you 8 pistons. One you could test your welding talents on. Keeper scuffed it just a little LOL
Last edited by Leon441; 06/25/15 06:58 PM.
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Custom billet BLING, diamond pistons for the R5 P7
[Re: DemonDust]
#1857507
06/26/15 05:30 PM
06/26/15 05:30 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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I don't plan to put them back. They made less lower. I might would weld the original billet flat top and put that set in. But, no.
Theses pistons have to much piston to wall clearance for drag race. New set is just too cheap. Then I can get a better for application ring pack to.
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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