Cast-Iron Gen V and Gen VI Cylinder Head Assembly

Product Details

SERVICE REPLACEMENT HEADS
Chevrolet Performance service replacement cylinder heads are direct replacements on most 1990-and-later GM Big-Block 454-cubic-inch and 502-cubic-inch engines. These cylinder heads meet GM’s stringent quality standards and provide excellent service and durability not found in used cylinder heads. The cylinder heads have rectangular intake ports.

Service Replacement Head Technical Notes:
• Cast-iron
• Rectangular intake ports
• Machined for 2.180"/1.880" (3/8" stems) valves
• Non-adjustable rocker arm design
• Heads have heat risers
• Will not work on production Mark IV cylinder blocks

Cast-Iron Gen V and Gen VI Cylinder Head Assembly
• Cast-iron head
• Completely assembled with 2.180"/1.880" valves
• 118cc combustion chambers
• Uses P/N 12562925 bare casting

This head is assembled with the following components:
14097045 Intake Valves
12550421 Valve Spring Retainer
14097049 Exhaust Valves
3947880 Valve Locks
14097002 Valve Springs
3875916 Valve Spring Shims

NOTE: Will not work on L29 engines.

California Proposition 65 Warning