990 heads on 402?

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VintageMusclecar · #1 11-03-2017, 08:21 PM

I double-checked and KB does offer an open chamber piston for the 396/402. They should result in ~10.5 compression with a 118 c.c head--but I'd still advise against the 990's. I'd go with an 049 or 781 head.

**luzl78** · #2 11-03-2017, 09:26 PM

Should I just stick with my original 290 heads. Same valve size as the other later model heads.

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