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The Compstar Comet crankshafts from Callies are forged of 4340 steel and have had non-critical material removed to allow these cranks to weigh only 42 lbs. A light rotating assembly allows you to acclelrate faster off the corners.
The Compstar Comet crankshafts from Callies are forged of 4340 steel and have had non-critical material removed to allow these cranks to weigh only 43 lbs. A light rotating assembly allows you to accelerate faster off the corners. Two piece rear main seal. 400 mains.
All balancing is done with our state-of-the-art "hines" balancer by race mechanics with over 30 years of experience. A kit purchased with the optional balance job will ship in 24-48 hours.
Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.
All balancing is done with our state-of-the-art "hines" balancer by race mechanics with over 30 years of experience! A kit purchased with the optional balance job will ship in 24-48 hours.
These rotating assemblies are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.
These rotating assemblies are designed for street use and include Keith Black Hypereutectic pistons, Speedway 5140 I-beam rods and a Speedway Cast Steel crankshaft.Rings and bearings not included. Journals are standard size.Must use Clevite H-series bearings or equivalent.
New one piece rear main cast steel crank. Standard size journals. Hyperuetectic piston set and Speedway Super Stock rods. ARP rod bolts.
New one piece rear main cast steel crank. Standard size journals. Keith Black Hyperuetectic piston set and Speedway 4340 full floating H-beam rods. ARP bolts.