weights crankshaft 27 lbs head 25 lbs ,no cam , no cam caps, with valves and rockers. block 38 lbs, naked flywheel 22 lbs 2wd 5sp tranny 64 lbs. (shifer lever out) one can walk around with block crank and rods like a babe in arms. (short block) 27+25+38+22=112 lbs (no cam) with fly. block and head weight 90lbs with fly off (no cam) est, block and head loaded is 100 lbs. or slightly more with Tbelt on and covers. for max weight of 125lbs.