588ci P51 N/A Deal Makes 1042hp with 2 inch Tri Y Headers..some more info on combo.

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Re: 588ci P51 N/A Deal Makes 1042hp with 2 inch Tri Y Headers..some more info on combo.

Post  Lem Evans on July 24th 2018, 3:55 pm

nascar429 wrote:
Lem do you know how much lift you can practically run with the 2.25 valve in the p51 head before you run out of spring in relation to installed height coil bind etc..?

The usual race roller spring I put in the P51 package is the PAC 1224. It should allow at least .850" net lift when installed at 2.00". A guy could jack around with keepers and stuff and get some more.

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Re: 588ci P51 N/A Deal Makes 1042hp with 2 inch Tri Y Headers..some more info on combo.

Post  nascar429 on July 25th 2018, 11:34 am

Thanks Guys..

I Didn't realize .850"lift was possible with those valves with a bit of playing around that's great to know..







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