Hello .
I have The Eagle cranck is a 4150 stroke and the con Rods are 6760.
I have also a set of L2266F pistons(0.030) does it fit??
When i put my heads on it or does the pistons hit the heads.
It looks like it will hit. I believe IQ52 who posted on your other thread would be a good person to take advice from. If I'm not mistaken he has built some pretty impressive engines.
I agree , the L2266 piston is designed for a stock stroke engine , you are using the short rods so you are closer but you still have a 3/8" stroke crank so the piston will be 3/16" higher at TDC so you could be .187 above the deck , most 440 blocks are taller than spec if they have not been milled but not that much
1.991" piston compression height plus 6.76" rod plus 1/2 of the 4.15" stroke equals 10.826" and the stock 440 block is 10.720". You are .106" above the block deck. They will NOT work!