Use what ever you want. It all works good.
Frank

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Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

IF you keep it out of detonation cast pistons will live forever.

Detonate it very much and even forged pistons will not last.

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Official Cookie and Mater Tormentor.

My understanding is that forged pistons are reallly for strength at high revs (over cast), but forged are not drastically stronger than cast when overheating them with detonation.

Lou

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Home of Slant6-powered fun machines since 1988

Thanks again for the advice, it really helps and now I think I've done it right so far My plan is to keep the RPM out of the stratosphere, stay away from the spray and focus on getting the dynamic compression right once I upgrade to the high compression set-up later on. For now, the stock stuff is looking pretty good for the first stage since everything other than the mild bump in SCR (9 - 9.5:1?) will be "optimized" stocker stuff. After the pistons go in, I'll start measuring and ask for a double check on my first attempt at making an accurate DCR calculation.

Stage Two planning is underway - Offy 4 bbl intake has arrived, header dreams run rampant and the separate budget for the E85 carb is in the works.

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1966 Coronet Deluxe

I have noticed this to. My previous bracket car ('71 Duster) was a 1974 steel crank engine with a later style peanut plug head. I recently had a tube style head from a 198 milled over .100 and when compared to the peanut plug head, it shocked me at how close the chambers looked. The peanut plug head was stock/untouched.

Maybe I should have done the peanut plug style head. I already had hours of port work into the 198 head though and if you are weight freak like me, the tube heads are a tad bit lighter.

Good info, D.Idiot!

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Michael Glass. Mopar stuff and some rusty Mopar stuff!
1965 Dodge Dart with 66 Valiant front clip. Other stuff...