SB Stroker....One more time

340sFastback said

If you are building a pump gas engine definitely go with the dished piston. I have the KB745 forged step dish pistons in my sb stroker. With pistons at zero deck, .039" head gaskets, and eddy heads milled to 62cc I have 10.3:1 compression. Without milling the heads it would have been 9.8:1 compression; probably would have run on 89 octane.

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Bill have you ever tried 89 octane to see if it will run on it without spark knock? I've read reports from a few other guys that claim they have no problem using 89 octane on iron headed engines with over 10.5 to 1 compression. They had the quench set up good. I assume your Eddy's are closed chambers and pistons at zero deck??

Haney I hole you don't mind me jumping in here and asking Bill a question. I figured it's good info for you also.