This part is no longer available.
  • Fits NASCAR Engine Block M-6010-R500
  • Features:
    • Lightweight A356-T6 aluminum casting
    • Cross flow cooling
    • Internal oil passages for valvetrain lubrication
    • Splayed and canted intake valves
    • Five bolt head bolt pattern
  • Specifications:
    • Intake valve angle: 11.0� x 4.0�
    • Exhaust valve angle: 7.5� x 0�
    • Valve spacing: 1.94"
    • Intake flange angle: 90�
    • Exhaust flange angle: 60�
  • Required Components:
  • Recommended Use:
    • Approved for the NASCAR Cup and Nationwide Series
    • Circle track competition
  • Builder Notes:
    • Heads are semi-finished requiring porting and combustion chamber machining
    • Valve guides and seats are not included
    • Water manifold, M-8C368-FR9 mounts directly to the cylinder heads
    • The FR9 engine is unique and does not share any components with previous 351 Windsor or Cleveland based engines
    • For FR9 engine related components, contact Roush Yates Performance Parts, phone 704-662-6982
Part Type
Engine: Cylinder Heads
Warranty Availability
Not Available
Package Dimensions
9" x 8" x 20.5"
Package Weight
32 lb(s)
UPC Code
Country of Origin
Great Britain