KPMI +0.001 Cast Iron Intake Valve Guide - 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.
The KPMI +0.001 Cast Iron Intake Valve Guide is specifically designed for Harley Shovelhead engines from 1978-1983 with worn or damaged valve guide bores. This oversized guide provides a precise fit for cylinder heads requiring restoration.
Why riders pick this
- Durable cast iron construction
- Intake valve guide, +0.001 oversize
- For worn bores in 1978-1983 Shovelhead
- Restores proper valve stem clearance
- Essential for engine rebuilds
When rebuilding a Shovelhead engine with cylinder heads that have seen some miles, standard valve guides may no longer provide the tight fit needed for optimal valve operation. This KPMI intake valve guide, crafted from durable cast iron and sized at +0.001 inch oversize, is the solution for bores that have experienced wear. It's a critical component for restoring proper valve stem clearance and ensuring your Shovelhead performs as it should.
Engineered for Worn Bores
- Robust cast iron construction
- Intake valve guide position
- +0.001 inch oversize specification for worn bores
- Direct fit for 1978-1983 Harley Shovelhead engines
Precision for Your Shovelhead Rebuild
Installing an oversized valve guide allows a machine shop to ream the cylinder head bore to a perfect fit, eliminating excessive valve stem play that can lead to oil consumption and reduced engine efficiency. This KPMI guide is an essential part of a comprehensive Shovelhead rebuild, ensuring that your classic V-twin delivers reliable performance for years to come. Professional installation is highly recommended to achieve the precise clearances required.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2051C
- Material: Cast iron
- Length: 5.13 in
- Width: 3.5 in
- Height: 0.85 in
- Weight: 0.09 lbs
Common questions
Is this an intake or exhaust valve guide?
This KPMI part is an intake valve guide. Separate exhaust guides are available for Shovelhead engines.
What does +0.001 oversize mean?
The guide is 0.001 inch larger than stock, designed to fit valve guide bores in the cylinder head that have been machined or honed to an oversize dimension due to wear.
Will this fit my post-1983 Shovelhead?
No, this part is specifically for 1978-1983 Shovelhead models. Later Shovelheads and Evolution engines use different valve guide bore specifications.
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 | 191-57002C |
| WEIGHT | 0.09 lb |
