That's nice to know info on the 6 cyl flywheels.

In a pinch the 6 bolt Poly flywheels will also work on the early Hemis. They bolt right up.......they just have spaces where the additional 2 bolts would go. If your concerned about not having 8 bolts those spaces can always be drilled, but hey even the later 440s only used 6 bolts.

I built a couple of 4 speed conversions for the early Hemi using the the Poly Flywheels. I had the flywheels turned down and fitted with a 340 ring gear to fit inside a later SB bellhousing. Even the stock pressure plate bolt holes for the Poly flywheel are correct for a stock 10 1/2 pressure plate.

FW by M Patterson, on Flickr

Last edited by Mike P; 12/31/17 07:27 AM.
1957 Plymouth (Hemi, Dual Quads, A833 4 Speed 9 1/4 w 4.10) Sold
1937 Dodge Pickup (Hemi, 6X2 intake, 46RH, Dana 60 w 4.56) Sold
1968 Plymouth Valiant 2dr sedan (354 HEMI, 46RH w/4.30 gears)