• Hypereutectic flat top with 4 valve reliefs. Compression ratios with cylinder heads: 51cc=9.7
  • 54cc=9.3
  • 58cc=8.8
  • 64cc=8.3
  • 69cc=7.8.

Application Summary:

Year Make/Model
1966-1968 Ford Bronco
1964-1967 Ford Country Sedan
1964-1967 Ford Country Squire
1964-1967 Ford Custom
1964-1965 Griffith 200
Attributes
Base Number 1177HC
Crown (cc) +3cc
Crown Type FLAT TOP
Eng. Disp Liters 4.7
Eng. Disp. In. 289
Engine Family Ford Small Block Windsor
Engine Manufacturer Ford
Hazardous Material Code N
Life Cycle Status Code Available to Order
Oe Assembly D9AZ6108A
Oversizes STD .020 .030 .040 .060
Pin Configuration Offset
Pin Number 0912x301A
PIN TYPE Press
Ring Pack 5/64, 5/64, 3/16
Sold As SINGLE
Top Land .245
Year From 1977
Year Range 1977-1986
Year To 1986
GTIN 00800745136381