KPMI Racing Valve Spring Kit – Suzuki DR-Z400 / LT-Z400 (2000–2019) – 60-60045

Description

Unlock the full performance potential of your DR-Z400 or LT-Z400 engine with the KPMI Racing Valve Spring Kit (60-60045). Designed for high-RPM stability and precision valve control, this kit features Kobe Super-Clean Chrome Silicon wire springs engineered for strength, longevity, and superior harmonic balance.

Each spring is heat-treated, stress-relieved, and shot-peened to withstand extreme racing conditions while maintaining consistent pressure through the rev range. The lightweight steel retainers and beehive spring design reduce reciprocating mass, improving throttle response and durability—ideal for performance builds, stroker engines, or big-bore setups.

What’s Included

✅ (8) High-performance valve springs
✅ (8) Lightweight heat-treated steel retainers
✅ Designed to work with OEM valve seal/base (OE# 3610212)

Fitment

Direct fit for the following models:
Suzuki: DR-Z400 / DR-Z400S / DR-Z400SM / LT-Z400 QuadSport Z (2000–2019)

⚙️ Perfect for performance rebuilds, big bore kits, and Hot Cams or KPMI cam upgrades
⚙️ Works with OEM or aftermarket valves

Key Features

• 80 lbs seat pressure / 205 lbs @ 0.435" lift (max)

• Wound from Premium Kobe Super-Clean Chrome Silicon wire

• Heat-treated, stress-relieved, and shot-peened for extended fatigue life

• Beehive spring profile reduces harmonics and weight

• Lightweight steel retainers reduce mass and improve RPM stability

• Designed for racing and high-performance street applications

Warranty Info

Covered by Kibblewhite Precision Machining Inc. (KPMI) limited manufacturer warranty.

Price & SKU

• Retail Price: $148.95

• SKU: 191-23003 / 60-60045

• Weight: 0.45 lbs

• Handling: Ships next business day