Re: ls6 heads
3964291 1969-70 396/402 375 L-78, Intake Port 325cc
427 425, 435 L-71/L-72
454 450 LS-6,
Closed 108.0cc
I beleive the valves should be 2.19 and 1.88. Chevy didn't use 2.25 valves in any heads.
James
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1968 Beaumont SD396
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