I am after some feedback on the aluminum R3 repo heads that Lionel Stone is selling. Obviously the weight saving is there, but can any member inform me do they flow as good as originals. Does anyone know of a person using them at present and have they encountered any problems. Any feedback please. Brian.
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quote: GO WITH THE STEEL HEADS ON MY R4.
thnx, jack vines
PackardV8PackardV8
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If what I've seen is as stated as the original head used to make the port mold for these heads, they may need some port floor (short turn area) work (as in, additional material). If the short turn is as low as I think it is, much low and midlift flow will be lost. This area is critical for good torque.
It's been a few years since I saw a set first hand and do not recall the port shape exactly.
As others have said, fitup problems may occure along with the questionable port shape.
If you have extra money and do get a set, please let us know what happens.
As may be noted in the article noted above, more compression is required to offset the extra cooling effect of the aluminum head.
Mike
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First of all, Lionel Stone is owed respect by us all for being the main guy to step up with his aluminum heads, intakes, water manifolds and many other performance parts.
Having said this, and only of the heads, that they have been offered for lo these many years and no SDC members or Racing Studebaker forum members have ever stepped forward singing their praises is something to think about.
thnx, jack vines
PackardV8PackardV8
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Thanks for your input guy's, I will give Dave Thibeault a call, I have bought parts off him over the years. I just want to know which way to go before I start spending. Either way stock cast iron or aluminum they will still have to be put on a flow bench. Brian.Brian Greenall
Melbourne, OZ
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