- Bare head with 35.5mm Intake, 32mm Exhaust seats and bronze valve guides installed
- Rocker, exhaust and intake studs included
- Plug Reach: 14mm x 1/2"
- 85.5mm Bore
- 53cc Chamber
- Alt P/N: 042-101-355C
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- Comes with 35.3mm Intake, and 32mm Exhaust seats and Bronze Valve Guides installed
- Rocker, Exhaust, Intake Studs included
- Plug Reach: 12mm x 3/4"
- Bore: 85.5mm
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- Complete head assembled with 35.5 x 32mm stainless steel valves, stock valve springs, steel retainers, hardened keepers,
rocker, exhaust and intake studs - Plug Reach: 14mm x 1/2"
- 85.5mm Bore
- 53cc Chamber
- Alt P/N: 042-101-355CK
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