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408 247 prc heads almost done

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Old 02-21-2013, 09:22 PM
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Default 408 247 prc heads almost done

well, a little back story my 408 broke a litfer so in the process of replacing parts i decided to change heads from PP ls6 st2 heads to PRC 247 with the cometic .040 gasket puts the compression at bout 11.5-1. The cam is a EPS 243/251 with a 114 lsa. The old 244/248 tr stroker cam had a hand in the lifer taking a beating cause my valve train didn't like the XER lobes. I am trying out Brian Tooley's SLR lifters. the rest of the set up is Fast 90/90, diamond clutch, tdp 6spd to a dayna 60 w/4.10. exhaust is dynomax bullet in the I pipe cutout after that flowmaster in the back almost never caped only for longer trips. At some point i will be changing to duals and other upgrades. Once i'm done ill put up the results cause i know that searching you cant find any anywhere.

But till then anyone care to take some guesses what she'll do?
Old 03-01-2013, 08:20 PM
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I'm guessing somewhere around 515/480. Good luck to you, I'm sure you'll be happy with the results. What did your old setup make?

Last edited by big dave; 03-01-2013 at 08:29 PM.
Old 03-01-2013, 08:42 PM
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What CC's are the new heads?
Old 03-01-2013, 08:44 PM
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Let me know how those slr lifters do. They are on my list next but every goddamn bill possible comes in when im about to order them.



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