Check the how many foot lbs it takes to turn the motor. Here are some numbers for short block only no plugs or valve gear. Stock engine and rings 20 -30 ft lbs race engine 15-20 ft lbs oval track engine with low tension rings 10 ft lbs. Remember to seat the thrust bearing front to back. or the engine will spin tight. My son builds a lot of engines of all types . Those are the numbers for V-8 gas, I just called him. Just finished a 505 BB it was 17 lbs to turn it. 10 sec full size 92 dodge ram .