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  1. M

    383 rebuild advice

    If $$ is tight, & you have access to a standard stroke 440 crank & a 400 block - get that line bored for the 440 main, use 6.86 hemi length con. rod - i believe that would be a stout build, using factory available parts
  3. M

    ‘68 383 Cylinder Head Advice

    My . 02¢ would be a pair of 452's - for the unleaded garbage' @ the pumps ~ i believe the intake port floor is also lower in the #346 head (i think, it's been a few years now...) You could also scratch up a pair of 516's -& use factory 2.08 int. & 1.74 exh. -& that will raise your 8.2:1 - 400...
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