8 bolt small block crankshaft

Sb Valiant said
Whats it mean for the 8 holes to be threaded anyway???

a 8 bolt crank has threads for 8 bolts...just does not have 8 holes in it...

count the holes with threads in them....if 6 has threads..the you got a 6 bolt crank....the other holes were used during the machining of the crank..

just looked at a 360 crank ...7 holes...6 have 7/16 threads...