Originally Posted by NachoRT74
Originally Posted by moparx
Originally Posted by TJP
To The OP, Trust me when I say swap the engine and trans both or not at all. beer



unfortunately, i may have to agree with this.
looking through my myriad of FSMs, the 1960 plymouth manual shows an 8 bolt crank flange on the 361.
with that being said, i don't know if if the bolt circle is the same diameter as the later 6 bolt 383. if it is, it may be possible to machine up an adapter to make the crank flange the same length as the 361, then modify the flex plate from an 8 bolt to a 6 bolt by slotting a couple of holes.
however, i would have to see both cranks and be able to precisely measure the flanges and the bolt patterns to be even remotely certain this may be feasible.
beer


but what about using the 361 crank into the 383 block ?

won't the 383 block meet the 727 iron case ?

and yes, 361 got open chambers BUT smaller valves too. Can't tell about piston height difference thought


They say it's an eight bolt flange on the 361 vs. 6 bolts for the 383. Seems like the 383 might already have a flex plate attached? I know nothing of the balance problems. IIRC, the closed chamber head engines have the piston lower in the bore vs. the later open chambers. So he's getting the 906 heads over whatever closed chamber heads he has now. If I was younger, I'd enjoy the challenge of getting it all figured out and have fun doing it, not these days though...

'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi