1970 340 with x heads

RustyRatRod said

Das more like it! Although it's a TRW replacement, it's still about the same as the 68-71 piston.

That's always been one of my dream builds. To build up a blueprinted 71 340 dead stock but with the 68 4 speed cam with everything machined to perfect spec and stick it in something light.

Never happen. LOL

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Not to hijack but is that 68 4 speed cam available? I run the Summit 276/288 duration 441/441 lift cam in mine. I seem to think that's "close" LOL! They are also very affordable. The 68 specs are to the best of my knowledge 276/284 duration .444/.453 lift but there is a caveat that duration isn't at .050 or something.