318 race engine 4104230-318 any info. on these engines?

DQ81 i have seen the motor with the heads off and if memory serves they were flat top pistons. Unfortunatly the engine is kind of inaccesable right now so i can't pull them off again. sorry. C130 chief, Like i said to DQ81 unfortunatly i can't pull the heads off because i'd like to check the bore on it. Also since my engine stand is occupied i can't pull the oil pan off to look and see if it has 4 bolt mains. Once the 400 is off the stand i think i'll check. Thanks for the great info. guys!!