PretendFarmer
Well-known Member
As some of you know, I have a 1948 C that has low compression. It's gutless even at "stock" tractor pulls.
It has, from what I can tell, never been rebuilt. It's a 113 motor, flat tops, and no smile on the wife's face when the other lite pullers far out pull her.
So the plan is this; I've ordered the stepped head piston and sleeve kit 3 1/8". Going to reuse the lower end bearings. I will be swapping the head/intake-exhaust manifold/carb from my 140 to this tractor. I'm told the intake and exhaust valves are bigger and the combustion chamber is smaller so more compression. Also, the 140 is getting the mag, and the C will have the distributor.
Should I drill out the main jet a little or no?
So it'll go from 3" flat tops, mag ignition
To 3 1/8" stepped heads, coil and distributor ignition, 140 head manifold and carb.
Any predictions on power?
It has, from what I can tell, never been rebuilt. It's a 113 motor, flat tops, and no smile on the wife's face when the other lite pullers far out pull her.
So the plan is this; I've ordered the stepped head piston and sleeve kit 3 1/8". Going to reuse the lower end bearings. I will be swapping the head/intake-exhaust manifold/carb from my 140 to this tractor. I'm told the intake and exhaust valves are bigger and the combustion chamber is smaller so more compression. Also, the 140 is getting the mag, and the C will have the distributor.
Should I drill out the main jet a little or no?
So it'll go from 3" flat tops, mag ignition
To 3 1/8" stepped heads, coil and distributor ignition, 140 head manifold and carb.
Any predictions on power?