KPMI Cast Iron Standard 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 cast iron exhaust valve guide is a direct OEM-style replacement for Harley Panhead (1948-1965) and Shovelhead (1966-1977) engines. Designed to restore proper valve clearance and sealing, it's an essential component for maintaining the integrity and performance of your classic Big Twin motor. Ensure your top end is in top condition with these standard-size guides.
Why riders pick this
- Direct OEM-style replacement
- Durable cast iron material
- Standard size for precise fitment
- For Harley Panhead (1948-1965) & Shovelhead (1966-1977)
- Restores valve sealing and reduces oil consumption
For riders and builders working on vintage Harley Panhead and Shovelhead engines, maintaining correct valve train geometry and sealing is critical. This KPMI cast iron exhaust valve guide provides a reliable, standard-size replacement that directly matches original factory specifications. Worn valve guides can lead to excessive oil consumption, loss of compression, and accelerated valve wear. Installing fresh guides ensures your valves operate smoothly and seal effectively, contributing to a healthier and more powerful engine. This guide is ideal for cylinder heads that are still within their original dimensions.
OEM-Style Reliability
- Durable cast iron construction for dependable service
- Standard size (STD) for direct factory replacement
- Designed for the exhaust valve position
- Restores proper valve clearance and seating
Essential for a Lasting Engine Build
Replacing valve guides is a fundamental part of any comprehensive Panhead or Shovelhead engine rebuild. This KPMI cast iron guide offers the traditional material choice that has proven its durability over decades of use. While it's a direct replacement, proper installation requires precise press-fitting into the cylinder head and subsequent reaming to achieve the exact valve stem clearance. This ensures optimal performance and longevity for your vintage Harley. Pair with other quality KPMI valve train components for a complete and reliable top-end overhaul.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2030C
- Material: Cast iron
- Length: 1.15 in
- Width: 3.55 in
- Height: 0.85 in
- Weight: 0.07 lbs
Common questions
Which engines does this valve guide fit?
This KPMI cast iron exhaust valve guide is designed to fit Harley-Davidson Panhead engines from 1948-1965 and Shovelhead engines from 1966-1977.
Is this for intake or exhaust valves?
This guide is specifically for the exhaust valve position. Intake valve guides are a separate component with different specifications.
Do I need to measure my old guides before ordering?
It's always recommended to measure your original guides and valve stems to confirm whether you need a standard or an oversize guide, especially if your engine has significant wear or has been previously modified. This ensures you order the correct part for your specific application.
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 | 191-57017C |
| WEIGHT | 0.07 lb |
