Part #TC2PK... $1135
The next step up for your carbureted or fuel injected bike. Suggested for riders demanding more mid-range and top-end power. Works with either flat top or dome top pistons. Chambers remain stock shape.
• Port & polish
• Install oversized intake valve seats
• Install & size guides
• Valve job with blend
• Mill to stock compression
Assemble with BC's parts: (No customer supplied parts.)
• 1.940 intake valves
• 1.570 exhaust valves
• Double spring kit for .550 lift cams*
• Teflon seals

* Spring kit upgrade available for cams over .550 lift. See Upgrade Page.

Part #WA3PK... $1395
Ultimate modification for your factory castings. Makes the most from bigger cams and carb. Can be built for torque or high output. Due to the larger intake port diameter of the high output version, a WA18 intake manifold is required.
• Port & polish
• Install oversized intake valve seats
• Set up for flat top or domed pistons
• Install & size guides
• Valve job with blend
• Mill as needed
Assemble with BC's parts: (No customer supplied parts.)
• 2.000 intake valves
• 1.580 exhaust valves
• BC605 spring kit for .600 lift cams
• Teflon seals