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Bare Cast Iron Gen V and Gen VI Cylinder Head

$950.78

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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 brand-new cylinder heads meet GM’s stringent quality standards and provide excellent service and durability not found in used cylinder heads.

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

12562925 Chevrolet Cylinder Head

  • Bare cast iron head
  • 118cc combustion chambers
  • 7/16” accessory bolt holes

Additional Required Components:

  • (2) 14097001 OR (2) 12555728 gaskets
  • (24) 10141204 bolts
  • (8) 10141205 bolts
  • 19157985 spark plug

Engine Application: 24502620, 12568778, 24502618, 12568774

Note: Rectangular intake ports are larger in volume and designed to enhance high rpm horsepower. They are an ideal street head for those big-block enthusiasts who what more power from a street car that sees a lot of drag strip action.

Due to world events we are working with our manufacturers every day to ship and receive parts. If the part you are looking for is time sensitive please give our team a call at 855-806-1147 before ordering to ensure it's availability.
SKU: 12562925 Categories: ,

Bare Cast Iron Gen V/Gen VI Cylinder Head

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 brand-new cylinder heads meet GM’s stringent quality standards and provide excellent service and durability not found in used cylinder heads.

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

12562925 Chevrolet Cylinder Head

  • Bare cast iron head
  • 118cc combustion chambers
  • 7/16” accessory bolt holes

Additional Required Components:

  • (2) 14097001 OR (2) 12555728 gaskets
  • (24) 10141204 bolts
  • (8) 10141205 bolts
  • 19157985 spark plug

Engine Application: 24502620, 12568778, 24502618, 12568774

Note: Rectangular intake ports are larger in volume and designed to enhance high rpm horsepower. They are an ideal street head for those big-block enthusiasts who what more power from a street car that sees a lot of drag strip action.

Weight 69.99 lbs
Brand

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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.