KPMI Valve Guide Intake +0.003 Cast Iron - Harley Panhead & Shovelhead
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
This KPMI intake valve guide, manufactured from cast iron with a +0.003 inch oversize, offers a robust solution for rebuilding Harley-Davidson Panhead and Shovelhead engines. It directly replaces worn factory guides, allowing for a precise fit even when cylinder head bores have experienced substantial wear.
Why riders pick this
- Robust cast iron material
- +0.003 inch oversized bore for precision
- Restores proper valve stem clearance
- Direct fit for Harley Panhead and Shovelhead
- Helps prevent oil consumption
When performing a comprehensive engine overhaul on a Harley-Davidson Panhead (1948-1965) or Shovelhead (1966-1977), addressing valve guide wear is critical for long-term reliability. This KPMI cast iron intake valve guide, with its +0.003 inch oversized bore, is specifically designed for cylinder heads that require a slightly larger guide to restore proper valve stem clearance. The cast iron construction provides excellent durability and a thermal expansion rate that closely matches the cylinder head material.
Precision Fit for Worn Cylinder Heads
- Durable cast iron construction
- +0.003 inch oversized bore for a secure fit
- Designed for the intake valve position
- Direct replacement for Harley Panhead and Shovelhead engines
Optimize Your V-Twin's Performance
Using the correct oversized valve guide is paramount for maintaining consistent valve train geometry and preventing common issues like oil consumption and valve float. This KPMI intake guide facilitates a professional rebuild, allowing you to machine the cylinder head for an exact fit. This attention to detail ensures your classic Harley V-twin performs as intended, delivering reliable power and efficiency for many miles to come. Always consult a qualified engine builder for installation.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2023C
- Length: 1.15 in
- Width: 3.6 in
- Height: 0.85 in
- Weight: 0.07 lbs
Common questions
Will this fit my Evo or Twin Cam engine?
No, this KPMI valve guide is specifically designed for Harley-Davidson Panhead (1948-1965) and Shovelhead (1966-1977) engines only. Evo and Twin Cam engines require different valve guides.
What does +0.003 oversized mean?
The bore of this valve guide is 0.003 inches larger than stock. This allows for the use of a slightly larger valve stem or for machining a worn cylinder head bore to achieve a precise, tight fit.
Is this an intake or exhaust guide?
This is an intake valve guide. Exhaust guides are a different part number and must be purchased separately if needed.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | KPMI |
| TYPE | Engine |
| SKU | 191-57044C |
| WEIGHT | 0.07 lb |
