106-3639 S&S Cast iron valve guide in/ex. +.008" for Harley-Davidson
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Specifications
- Brand
- S&S
- Part Number
- 106-3639
- OEM Reference
- —
- Pack Quantity
- Each
- Category
- Valve Guides Intake/exhaust
- VAT Rate
- 20%
About This Product
S&S cast iron valve guide for intake or exhaust. The outer diameter is +.008 inch oversize. It is machined to clear S&S KN and Flathead Power valve spring covers. Fits 1936 through 1946 Knucklehead models. Also fits Knuckles using S&S valve spring covers and S&S KN-series engines. Cast iron handles heat and wears well in the cylinder head. Essential for specific vintage-style builds.
Manufacturer part number: 106-3639.
Fitment
4 models36-46 Knucklehead; Knuckles with S&S valve spring covers; S&S KN engines
Knucklehead 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1936–1947 | Knucklehead E-1000 |
| Harley-Davidson | 1937–1946 | Knucklehead EL-1000 |
| Harley-Davidson | 1937–1947 | Knucklehead F-1200 |
| Harley-Davidson | 1936–1943 | Knucklehead FL-1200 |
Planning other changes? Find your model in the bike customiser.
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