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Product Discontinued
CHEVROLET PERFORMANCEPART NUMBER: 809-12499255
Big Block Chevy Rectangular Port Aluminum Cylinder Head, 572/620 Engine
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Street Cylinder HeadsRectangular Port
- Big Block Chevy Rectangular Port Aluminum Head
- 572/620 Engine
- 118cc Combustion Chamber
- 2.25" Intake/1.88" Exhaust Valves
- 310cc Intake Port
- 118cc Exhaust Port - Raised 5/8"
- Hydr Roller to .632
- Completely Assembled, Sold Individually
Assembly notes: - Use intake gasket 809-12506106
- Intake Bolt Kit 809-12367959
- Mark IV Use Head Gasket 809-12363413
- Gen V & VI Use Head Gasket 809-12363411
- Use Head Bolt Kit 809-12367779Technical Specifications:
- Intake Valves: 12366987
- Exhaust Valves: 88963128
- Retainers: 12366990
- Valve Locks: 12366992
- Valve Springs: 88963934
- Valve Seals: 88963936
- Valve Spring Shims: 88963937
- Rocker Arm Studs: 3921912
- Pushrod Guideplates: 3860038
Part TypeCylinder Head
BrandCHEVROLET PERFORMANCE
Package Height6.4
Package Width9.7
Package Length23.9
Part CategoryPerformance Parts
Vendor Part Number12499255
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
