Cast iron block with 4-bolt main caps on journals 2, 3, 4 and strengthened structural sections
Nodular iron main caps
Can be bored/stroked to produce 360 cu. in.
8.200" deck height
Siamese cylinder bores
Wet sump oiling design (can be made dry sump)
2.248" main journal diameter (stock 302 size)
Weighs approximately 160 lbs.
For professional competition
Semi-finished lifter bores and main bearing bores—must be honed to fit
Uses common OD cam bearings M-6261-J351/R351. See page 55
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.