Callies BB Chevy 4340 Forged Magnum Crank - 4.375 Stroke 4386SMLBK steel tube has a 1"

steel tube has a 1" O

The wrap around shoulder harness is designed to mount by looping around a roll bar structural tube running horizontally behind the driver and below the shoulders

and performance to match advancements in automotive technology

Rugged Knurled and B&M Logo Engraved Locking Cap

and off-road applications

Callies BB Chevy 4340 Forged Magnum Crank - 4.375 Stroke 4386SMLBK steel tube has a 1"Product Description: Crankshaft Magnum 4. 375 in Stroke Internal Balance Forged Steel 2 Piece Seal Big Block Chevy 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