i belive it is a a14 crank in an a12 block, . on a12 rods with a15 pistons.... i always forget the crank that he has in it........... but that motor, who ever is running it may not be running for much longer, cyl 3 is down on compression.... about 35% lower on comp then the rest... i hope that person has a bit of luck soon.... i guess its not so secret any more that mild man has spoken...