Kiggly Valve Spring Kit Steel Street for 4G63 (SS-ST)

The Kiggly Racing Steel Street springs are a cost effect, drop-in replacement for 4G63 applications looking to spin up to 10,000rpm and run up to 40psi boost. Includes 16 springs and 16 retainers. For use with OEM spring seats (not included).

Includes:
(16) Chromoly Steel Retainers
(16) Steel Street Springs

Vehicle Fitment:
Mitsubishi 4G63
1992-2006 Evolution I-IX
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1992 Galant VR4

Features:
• Proven PAC Racing ovate beehive springs
• FEA-optimized and heat treated steel retainers
• Designed for use with the OEM spring seats
• Fits all 4G63 engines including DSM and EVO
• Compatible with all popular cam profiles
• 100% Made in the USA
• Seat pressure = 85lbs at 1.475'
• Rate = 325lb/in
• Max recommended lift = 0.500'
• Min recommended spring height at full lift = 0.900“