KPMI Exhaust Valve Guide +0.006 Cast Iron - Harley 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.
For Shovelhead engines with significant cylinder head wear, this KPMI exhaust valve guide provides the necessary material for a complete restoration. Constructed from cast iron and sized at +0.006 oversize, it's engineered to bring heavily worn 1978-1983 Shovelhead top ends back to life. This guide allows for precise machining to ensure optimal valve stem clearance.
Why riders pick this
- Durable cast iron construction
- Exhaust valve guide position
- +0.006 oversize for significant bore wear
- Direct fit for 1978-1983 Shovelhead
- Restores proper valve stem clearance
When undertaking a comprehensive Shovelhead engine rebuild, especially on high-mileage or heavily used cylinder heads, addressing severe valve guide wear is critical. This KPMI cast iron exhaust valve guide is designed for just such scenarios. The +0.006 oversize provides ample material for your machinist to bore and hone the cylinder head to exacting specifications, ensuring proper valve stem clearance and sealing. This precision is vital for restoring engine compression and reducing oil consumption.
Engineered for Challenging Rebuilds
- Heavy-duty cast iron construction
- Exhaust valve guide position
- +0.006 oversize for extensive bore wear correction
- Designed for 1978-1983 Shovelhead engines
Restoring Your Shovelhead's Performance
Choosing the correct oversized valve guide is paramount for a successful top-end rebuild. This KPMI +0.006 cast iron guide offers a robust solution for Shovelhead cylinder heads that require more aggressive machining to restore valve train geometry. Professional installation and precise reaming or honing are essential to achieve the perfect fit and ensure your Shovelhead runs strong for years to come.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2066C
- Size: EX +0.006 in
- Length: 1.15 in
- Weight: 0.09 lbs
Common questions
What does +0.006 in mean for this valve guide?
The +0.006 in specification means the outer diameter of this valve guide is 0.006 inches larger than the stock size. This is intended for cylinder heads where the original valve guide bore has experienced considerable wear, requiring a larger oversized guide for proper fit and subsequent honing.
Do I need both intake and exhaust guides?
It depends on the condition of your cylinder heads. Some rebuilds may only require one, while others need both. You should inspect your heads to determine the specific needs and order intake and exhaust guides separately as required.
Will this fit my Shovelhead if it's not a 1978-1983 model?
No, this KPMI valve guide is specifically designed for Harley-Davidson Shovelhead engines from 1978 to 1983 model years. Later Shovelhead models, or earlier ones, may have different bore specifications and require different parts.
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 | 191-57026C |
| WEIGHT | 0.09 lb |
