KPMI Intake Valve Guide +0.004 Cast Iron - Harley Shovelhead 1978-1983
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 intake valve guide is specifically sized at +0.004 inch oversize for Harley Shovelhead engines from 1978 to 1983. It's designed as a direct replacement for worn guides, restoring proper valve-to-bore clearance without requiring extensive cylinder head boring.
Why riders pick this
- Durable cast iron construction
- Intake valve position
- +0.004 inch oversize
- Direct replacement for Shovelhead
- Fits 1978-1983 Harley Shovelhead engines
Maintaining precise valvetrain clearances is essential for the performance and longevity of your 1978-1983 Shovelhead. This KPMI intake valve guide offers a practical solution for cylinder heads with moderate wear, allowing you to use an oversize guide without the need for additional machining of the head. Crafted from durable cast iron, it ensures reliable operation and helps prevent oil consumption due to excessive valve stem play.
Engineered for Shovelhead Durability
- Constructed from robust cast iron for long-term reliability in demanding V-twin applications
- Designed for the intake valve position on 1978-1983 Harley Shovelhead engines
- Features a +0.004 inch oversize bore, perfectly suited for moderately worn cylinder heads
- Direct replacement fitment simplifies the rebuild process for compatible applications
Optimizing Your Shovelhead Rebuild
Choosing the correct oversize valve guide is a critical step in a Shovelhead top-end rebuild. This +0.004 inch guide is ideal for cylinder heads where the original bores have worn past standard specifications but do not require the largest oversize. Professional installation is always recommended to ensure proper seating, alignment, and overall valvetrain integrity for your classic Harley-Davidson.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2054C
- Material: Cast iron
- Size: +0.004 inch
- Length: 1 in
- Weight: 0.09 lbs
Common questions
What does '+0.004 inch oversize' mean?
This valve guide features a bore that is 0.004 inches larger than a standard guide. It allows you to use an oversize valve stem or compensate for cylinder head wear without needing to bore the cylinder head itself.
Is this guide designed for intake or exhaust valves?
This KPMI part is specifically an intake valve guide. If you require an exhaust valve guide, you will need to order a separate part number.
Do I need to bore my cylinder head to install this?
No, this +0.004 inch oversize guide is designed to install into a stock cylinder head bore that has experienced wear, without requiring additional machining of the head. It's crucial to verify your head's condition to ensure this is the correct size.
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 | 191-57048C |
| WEIGHT | 0.09 lb |
