Callies Energy Engine Block - 4.315 in Bore - 10.725 in Deck - 4-Bolt Main - 2-Piece Seal - Gen II Hemi NPT to AN Fittings Fully Supported CountershaftThe countershaft is

Fully Supported CountershaftThe countershaft is fully supported by needle bearings on a hardened steel shaft

2A/5 specs with a TPP rating of 25

Adjustable Speed Limiter

R2500 Suburban 1991-1987

Designs are available in short and tall heights

Callies Energy Engine Block - 4.315 in Bore - 10.725 in Deck - 4-Bolt Main - 2-Piece Seal - Gen II Hemi NPT to AN Fittings Fully Supported CountershaftThe countershaft isProduct Description: Engine Energy Bare Block 4. 315 in Bore 10. 725 in 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