Alright so I've used the search and I understand there are a few differences in the '75-80' 2f motor blocks and the '80-'86(I believe) 2f motor blocks.
The latter of which has (and correct me if I am wrong):
-a more balanced crank shaft
-Lighter\more balanced connecting rods (?)
-Flat topped pistons vs. the domed pistons of earlier years
-Different shaped combustion chamber
-Threaded plugs one of which would be located behind the bell housing (this I have only read once)
-And of course those that came with power stearing have threaded holes for the bracket on the drivers side.
However I couldn't really find any differences in the crankshafts themselves. Comparing them there seems to be an oil sling (this is what the machinist said) on the flywheel side of the '75-'80 version which isn't present in the '80-'86 model. We used calipers to measure certain dimensions and they seemed to match. What I'm really asking is does anyone have any knowledge of any other diffferences that would prevent me from using a earlier model crank in a later model 2f, and or would the fact that the crank has the oil sling and the block does not be a problem? Thank you in advance.
These are pictures of the two crank ends; what do you think?
The latter of which has (and correct me if I am wrong):
-a more balanced crank shaft
-Lighter\more balanced connecting rods (?)
-Flat topped pistons vs. the domed pistons of earlier years
-Different shaped combustion chamber
-Threaded plugs one of which would be located behind the bell housing (this I have only read once)
-And of course those that came with power stearing have threaded holes for the bracket on the drivers side.
However I couldn't really find any differences in the crankshafts themselves. Comparing them there seems to be an oil sling (this is what the machinist said) on the flywheel side of the '75-'80 version which isn't present in the '80-'86 model. We used calipers to measure certain dimensions and they seemed to match. What I'm really asking is does anyone have any knowledge of any other diffferences that would prevent me from using a earlier model crank in a later model 2f, and or would the fact that the crank has the oil sling and the block does not be a problem? Thank you in advance.
These are pictures of the two crank ends; what do you think?

