Callies Bare Block - 4.500" Bore - 10.725 Deck - 4-Bolt Main - 2 Piece Seal - Iron - Gen II Hemi Engine Covers Pans & Dress-Up Components 1977-1981 Ford Thunderbird

1977-1981 Ford Thunderbird

0 Year Limited Warranty

1975-1987 Pontiac Grand Prix

2-year powertrain warranty

Callies Bare Block - 4.500" Bore - 10.725 Deck - 4-Bolt Main - 2 Piece Seal - Iron - Gen II Hemi Engine Covers Pans & Dress-Up Components 1977-1981 Ford ThunderbirdProduct Description: Engine Bare Block 4. 500 in Bore 10. 725 Deck 4 Bolt Main 2 Piece Seal Iron Gen II Hemi Sold Individually Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the latest high tech design