140 CFM Merlin Heads?

Started by Dan Jones, November 11, 2009, 06:21:57 PM

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slow_M

I hope this is the appropriate thread to ask the question:
Have any of you ever had the opportunity to test, or have a look at any of the REPCO heads, or the Oldsmobile Jetfire 6-stud heads? I wonder if the Olds head offers any improvements. The two major variants of REPCO heads, one, a two-valve, the other, a four-valve version certainly should. Supposedly, they were able to support 325HP, and 385HP, respectively, on a 3 liter motor, with a bore and stroke of 3.50" x 2.375".

Best,
B.

roverman

Bernard and clan, being a collector of Jetfires, this head offers no performance advantage, over, say an Olds h-icomp. head. All  215 Olds heads have a shallow bathtub type chamber, with the valves moved closer to center of bore, than Buick/Rover, semi-hemi.HP quotes for Repco, do sound impressive, but dyno sheets tell a better story. Being Formula 1, I suspect the power band is narrow, and at very high rpm ?  Those currently looking for serious, non-boosted hp.might best consider the bare TA heads, for potential flow vs $'s. NOT an indorsement.  Cheers, roverman.