KPMI Valve Guide Intake +0.004 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, precisely manufactured from cast iron with a +0.004 inch oversize, is engineered for Harley-Davidson Panhead and Shovelhead engines. It's a robust solution for cylinder heads that have experienced significant wear, ensuring proper valve stem stability and oil control.
Why riders pick this
- Robust cast iron material for durability
- +0.004 inch oversize for severely worn bores
- Restores critical valve stem clearance
- Improves oil control in the valve train
- Direct fit for Harley Panhead and Shovelhead
When undertaking a complete engine rebuild on a classic Harley-Davidson Panhead (1948-1965) or Shovelhead (1966-1977), especially those with considerable wear, the cylinder head valve guide bores often need attention. This KPMI cast iron intake valve guide, featuring a substantial +0.004 inch oversize, is designed to provide a precise and durable fit in these more worn applications. The cast iron construction offers excellent wear resistance and thermal compatibility with your cylinder head, critical for long-term engine health.
Built for Demanding Engine Rebuilds
- Durable cast iron construction for reliable performance
- +0.004 inch oversized specification for maximum bore wear
- Ensures proper valve stem clearance and alignment
- Direct replacement for Harley Panhead and Shovelhead intake valves
Crucial for V-Twin Reliability
Achieving the correct valve stem-to-guide clearance is fundamental for preventing oil consumption and maintaining consistent valve timing in your V-twin engine. This KPMI +0.004 oversized guide allows for precision machining of your cylinder head, ensuring an optimal press fit and preventing common issues associated with worn guides. For the best results and to ensure the longevity of your engine, professional installation and machining by an experienced builder are highly recommended.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2024C
- Material: Cast iron
- Length: 1.2 in
- Width: 3.7 in
- Height: 0.8 in
- Weight: 0.07 lbs
Common questions
What is the +0.004 oversize spec?
This guide's outer diameter is 0.004 inches larger than a standard guide. It's intended for cylinder heads that have significant wear in the original guide bore, requiring precision machining to achieve a correct press fit.
Will this fit my 1978+ Harley?
No, this KPMI valve guide is specifically designed for 1948-1965 Panhead and 1966-1977 Shovelhead engines only. Newer Harley-Davidson models use different valve guide specifications.
Is this for intake or exhaust?
This is an intake valve guide. Exhaust valve guides are different and must be purchased separately if needed for your rebuild.
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 | 191-57045C |
| WEIGHT | 0.07 lb |
