Cast iron block with 4-bolt main caps on journals 2, 3, and 4
Nodular iron main caps
3.000" main journal diameter
Siamese cylinder bore design
Can be bored/stroked to produce 598 cu. in.
Bore range from 4.360-4.600" - Also available in big bore version, part number: M-6010-A460BB
Wet sump oiling design
Priority main oiling system design
Weighs approximately 275 lbs.
NOTE: Siamese blocks are solid casting between the cylinder bores. There are no water passages between them.This is done to increase the strength of the block. Four bolt main cap requires stock oil pan modifications.