460 Siamese Big Bore Engine Block

Unleash your engine's power with the 460 SIAMESE BIG BORE CYLINDER BLOCK, designed for high-performance enthusiasts. With unmatched strength and the capacity to expand up to 598 cu. in., it’s the ultimate choice for those serious about professional competition.

• 10.322" deck Height plus or minus .005"
• Cast iron Block with 4-bolt main caps on journals 2, 3, and 4
• Nodular iron main caps
• Can be bored/stroked to produce 598 cu. in.
• Siamese cylinder bores
• Rough bored to 4.490" +- .003"
• Maximum recommended bore 4.625" 
• Wet sump oiling design
• 3.00" main journal diameter
• Weighs approximately 275 lbs.
• High-strength block for professional competition
• 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.

• Also available in standard bore version, part number: M-6010-A460X