CYLINDER HEADS

ARC cylinder heads are precision machined from 6061T6 aluminum and are designed for maximum heat retention and rigidity.

"S" prefix denotes the combustion chamber depth (i.e. S400 = .400" depth)

RAPTOR

# 6018       Head -- S300 -- 25cc

# 6016       Head -- S325 -- 27cc

# 6014       Head -- S350 -- 29cc

# 6012       Head -- S375 -- 31cc

# 6010       Head -- S400 -- 33cc

# 6020A     Head -- S437 -- 35cc

BLOCKZILLA

Full perimeter constructed to match the look of the block.  Radiused valve relief's accept up to 1.437" intake valve.

# 6030     Head  -- S437

# 6031     Head -- S437 -- Big bore

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SNYDER HEAD

# 3BZ15       Head for 3" bore blockzilla (requires relocation of 5 bolts around bore)