Thread: 454 build - what intake and cam ?

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Great article Denny, good reading.
I've been a fan of Keith Black cast hypereutectics....like forever....for a street motor. There is a piston mentioned in the article that Denny linked for you, the KB203KTM+060, which includes the hyper pistons and cast iron moly ring set. They don't come in +0.050", so you'd have to hone the cylinders to 4.310" plus clearance. These hypers require a little extra ring gap, so you want to open up the top ring to 0.0028" for street driving or 0.035" if you will do any towing with the car. Piston to wall should be 0.002" to 0.0025" for street driving or towing. You can see all the different clearances for yourself here.....
https://www.uempistons.com/installat...stallation.pdf
These piston feature a 12cc pop-up, so here are the numbers....

With block deck height cut to 9.780" (zero deck with 2.0" crank radius, 6.135" rod and 1.645" piston), bore cut to 4.310" and using a Fel-Pro 1017-1 head gasket and 115cc chambers (iron head), the SCR would be 9.44:1. and squish/quench would be 0.039"

Same as above, but with 112cc chambers (aluminum AFR CNC'd)....9.67:1

Same as above, but with 109cc chambers (aluminum AFR not CNC'd)....9.91:1

Or you could have the head decks cut a few thousandths after CNC and end up with 107cc chambers for a 10.08:1 SCR

In case you're wondering, you must use a composition gasket with aluminum heads, so you need to have all that lined out even though you will begin with iron heads. Steel shims or copper gaskets don't allow enough movement to absorb growth/shrink characteristics in the aluminum and will fret the soft material over time. You also want to use a pre-flattened fire ring in the head gasket, to prevent brinelling of the head surface. The 1017-1 qualifies.

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