i dont need to mount anything to the block, just need it for mastercylinder clearance and pass inner fender clearance. Why can’t you just lay the Hemi heads on a 440. That's what I did. Used a 440 block w/ hemi heads bolted to it...set it in the car on the factory wedge motor mounts so I could fab the mounts for the motorplate and make sure the headers fit. Unless you're using some sort of hemi conversion motor mount, you don't need a hemi block.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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