273 Build

How bad is the gas in Hawaii? Premium in California is only 91 octane, and that's with up to 10% ethanol. But my Commando runs OK if I retard the timing just a bit. High compression is inherently more efficient, and I'd hate to give up the HP. Sure, premium is expensive, but so is regular these days. Anyway, I'm just saying I would stay with the domed pistons. Why have a sheep in wolf's clothing?

Either way, thumbs up for rebuilding a 273.

Cheers,
Max



Dfnsmn34 said
ToolmanMike!

A few ??? You mentioned you would have gone with flat pistons if you did it over again? Is that right? Do you still feel that way? I'm curious as I have a 66 commando engine that I'm about to have rebuilt (long block). The builder recommend going away from the domed pistons. His reasoning is the gas in Hawaii is poop and the engine would run better without the extra compression. I'm inclined to follow his advice.

Also, what paint did you finally use for the engine color. (I saw on another thread...Dupli-Color Chrysler Red # DE1632) Mahalo

Mahalo for your 273 Build!
Aloha Mike
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