KPMI Bronze +0.001 Exhaust Valve Guide - Harley Panhead & Shovelhead 1948-1977
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 bronze exhaust valve guide features a +0.001 inch oversize bore, designed for rebuilding Harley Panhead (1948-1965) and Shovelhead (1966-1977) engines. It's a direct replacement for worn guides, restoring proper valve stem clearance and sealing for enhanced performance and longevity. The bronze construction offers superior wear characteristics for demanding applications.
Why riders pick this
- Bronze construction for superior durability
- +0.001 inch oversize bore for worn heads
- Fits Harley Panhead (1948-1965) & Shovelhead (1966-1977)
- Designed for exhaust valve position
- Restores valve stem clearance and sealing
When rebuilding the cylinder heads on your classic Harley Panhead or Shovelhead, opting for high-quality components like this KPMI bronze oversize exhaust valve guide ensures a lasting repair. The +0.001 inch bore allows for precise machining to correct for wear in the cylinder head's guide bore, creating an optimal fit for your valve stems. Bronze provides a low-friction, durable surface that outperforms traditional materials, contributing to smoother valve action, reduced heat, and extended service life. This guide is critical for restoring compression, minimizing oil consumption, and ensuring your vintage Big Twin runs at its best.
High-Performance Bronze Construction
- Premium bronze material for superior wear and reduced friction
- +0.001 inch oversize bore for addressing worn heads
- Designed for exhaust valve position
- Direct replacement for Harley Panhead (1948-1965) and Shovelhead (1966-1977)
Building a Resilient Top End
Using an oversize bronze valve guide is a smart choice for any serious Panhead or Shovelhead engine builder looking to maximize durability and performance. While the guide itself is a direct replacement, its installation requires specialized tools and expertise. The guide must be precisely pressed into the cylinder head and then reamed to its final dimension to achieve the correct valve stem clearance. This meticulous process ensures that your valve train operates flawlessly, making this KPMI guide an essential component for a robust and reliable engine rebuild.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2031
- Material: Bronze
- Bore: EX +0.001 in oversize
- Length: 0.8 in
- Weight: 0.07 lbs
Common questions
What are the benefits of a bronze oversize valve guide?
Bronze offers excellent wear resistance and a lower friction coefficient compared to cast iron, which can lead to longer guide life, reduced valve stem wear, and improved heat dissipation. The +0.001 oversize allows for precise fitting in worn cylinder head bores.
Will this guide fit my Evolution or Twin Cam engine?
No, this KPMI valve guide is specifically designed for Harley Panhead (1948-1965) and Shovelhead (1966-1977) engines. Evolution and Twin Cam models utilize different valve guide designs and dimensions.
Is professional installation recommended for this part?
Yes, valve guide replacement requires specialized tools and expertise, including precision pressing and reaming, to ensure proper fitment and correct valve stem clearance. We highly recommend having this work performed by a qualified machine shop or experienced engine builder.
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 | 191-57018 |
| WEIGHT | 0.07 lb |
