I got a killer deal on some new 220 runner pro topline heads yesterday. I know that some have has some bad ones from this co. but for the price I thought I would take a shot at them. They are suppost to flow over 290 @.600 so this could be good for the next NOS 406. One gut I was talking too said he opend up the bowls, cleaned up the guides and added 2.05 valves and was at 300 cfm.
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Originally posted by MR.hp View PostI got a killer deal on some new 220 runner pro topline heads yesterday. I know that some have has some bad ones from this co. but for the price I thought I would take a shot at them. They are suppost to flow over 290 @.600 so this could be good for the next NOS 406. One gut I was talking too said he opend up the bowls, cleaned up the guides and added 2.05 valves and was at 300 cfm.
If your not afraid to put a lil time into them, you really can't beat it.
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Originally posted by OSOFEW View PostI have not had experience with their Chevy heads, but I have worked with their SBF units. They did need some touch up work out of the box. (About 4-6hrs to be exact, but nothing really major). Like the "gut" you talked to, they needed some clean up in the chambers. Lots of sharp edges, and the short turns from where the bowls were cut left some pretty sharp edges as well. Short of just cleaning up the short turn just above the seat. Getting rid of the the edges in the chambers, and just cleaning up the castings of the runners was all I did to the SBF heads. (Left the overall shave of the runners as cast) And they nearly mirrored the HP and TQ #s of a set of AFR 185s on a nearly identical engine setup. (Both 331s, both had same camshaft, one had TFS track head intake, one had RPM 2).
If your not afraid to put a lil time into them, you really can't beat it.
Ya, These look pretty nice Casey and not any sharp edges in the bowl-short side radius area. I will have to clean up the chambers and get rid of all the sharpies around that area. I am going to put in my 2.05's to get some extra flow and with the other goodies I got for the 406 it should go pretty good this year. Did I say I was going to spray this? Guess not :laugh_smile:
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