KPMI Valve Guide - IN / EX +0.010 Cast Iron HD EVO 1984-1999 — Harley-Davidson (1984-2004)

KPMI cast iron valve guide for Harley EVO engines (1984-1999), machined to +0.010 oversized spec for both intake and exhaust ports. Direct replacement for worn guides that restores proper valve sealing and reduces oil consumption.

Features

• Cast iron construction
• Oversized +0.010 spec
• Fits both intake and exhaust ports
• Direct replacement for worn guides

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-4329C
• Material: Cast iron
• Size Spec: +0.010 oversized
• Length: 5.13 in
• Width: 3.5 in
• Height: 0.65 in
• Weight: 0.1 lbs

Fitment

Fits Harley EVO engines from 1984 to 1999 for both intake and exhaust valve ports.

Frequently Asked Questions

What does +0.010 oversized mean?

The guide bore is machined 0.010 inches larger than stock to accommodate oversize valve stems, restoring clearance in worn engines.

Will this fit my 2000+ Harley?

No — this guide is specific to EVO engines (1984-1999). Twin Cam and Milwaukee-Eight engines require different part numbers.

Do I need new valves to go with this guide?

If your guides are worn, valves are likely worn too. Check valve stem-to-guide clearance; oversized valves may be needed for proper fit.

Is professional installation required?

Valve guide installation requires engine disassembly and machine shop precision. Factory service or an experienced builder is strongly recommended.