4.07L - Includes 4340 billet crank, 86.4mm stroke (fully balanced), ProH2K (formerly Sportsman) rods (5.675" c-to-c), and custom pistons (choice of bore/compression). ACL bearings available separately.
| Crank # |
BC5225 - 86.4mm |
| Rod # |
BC6229 - 5.675" |
| Piston # |
BC7229 - Custom |
