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 Are aluminum heads wasted on a tri-power setup?
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Tribal Scout

1 Posts

Posted - 28 Feb 2015 :  8:09:35 PM  Show Profile  Reply with Quote
I'm interested in the KRE 74 cc aluminum heads for my 389-.06 over. I want to keep the tri-power 2gc look and am concerned that the intake manifold flow is insufficient to really get anything appreciative out of the higher flowing heads. I realize I can port match, but are the heads just overkill for this set up?


Crazy Horse

527 Posts

Posted - 28 Feb 2015 :  8:44:05 PM  Show Profile  Reply with Quote
Stock KRE heads will be fine.Just get it port matched.As a race engine would not be as good as a good single 4 but for a street driver you will like it.Tom
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Mr. P-Body
Running Bear

2258 Posts

Posted - 16 Mar 2015 :  5:53:55 PM  Show Profile  Visit Mr. P-Body's Homepage  Reply with Quote

Rick Holladay went 10.80 with his '65 ragtop, 434 CID, E-heads, TriPower (iron, ported) and a Comp XR288HR (with solids on it) on 93 octane gas.

With the aluminum repro manifold available (high quality casting), we've managed nearly 600 HP with this arrangement. Jim Viar's '63 Grand Prix has a nicer pair of KRE D-ports with the TriPower and a hydraulic roller (using my experimental setup, so far, so good).

All depends on what you want, but yes, power can be made. I recommend you buy those heads "bare" and have high quality hardware installed and final "work" done. "Out of the box" often leaves something to be desired, regardless of manufacturer.

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