Billet EN40B steel crankshaft made in the U.K. by Arrow Precision, to fit an original 1071 Cooper S block. Modern technology and science make these cranks great products at a reasonable price.
Featuring:
- 68.26mm stroke
- Extra-large C-shaped counter weight webs to reduce vibration and to minimize main bearing wear, which is so critical with the Mini’s ancient 3-main journal design
- Through-bored rod journals for weight reduction and improved balance
- Nitrided EN40B steel to a depth of .020”
- Long keyway for improved location of crank gear and front pulley.
- Certified material, heat-treating and balancing
- Full crack-checking
- Manufacturer’s inspection report supplied with crank
Special order, allow 4-10 weeks
Special Order - Call for Details