slow cranking '51 300

Posted by casey rog On 2013/2/8 9:43:53

I replaced the rings on my 1951 300 when I removed the engine and transmission to replace the transmission since I only had reverse and low. I cleaned all the carbon from the piston ring lands, gapped the piston rings. I plastic-gauged the rod bearings and only replace one set of bearings. When I put it back together I cranked the engine without he head. I cranked fine. After I put the head on last night the engine cranks very slowly. I cleaned, tightened, and put dielectric grease on all the cable ends.
Help. And how difficult should it be to turn the engine over by hand? Thanks in advance