Kiggly Valve Springs & Retainers Set 4G63

Looking for high-performance valve springs and retainers for your 4G63 engine? Look no further than Kiggly Racing Spring and Retainers Set. We offer three different sets - SS-ST-1010 for those aiming for 10,000rpm and 40psi boost, SS-HP-1030 for 45psi and 11,000rpm, and the top-of-the-line SS-RACE-1050 for serious builds with a seat pressure of 135lb (shimmable up to 150lb) and targeting 45+psi boost. These springs are recommended for sanctioned drag racing only due to their high seat pressure and potential valvetrain stress and wear. Not suitable for street cars.

 Specification:

 SS-ST-1010 

• Seat pressure = 85lbs at 1.475"
• •Rate = 325lb/in
• •Max recommended lift = 0.500"
• •Min recommended spring height at full lift = 0.900“

SS-HP-1030 

• Seat pressure = 97lbs at 1.440"
• Rate = 325lb/in
• Max recommended lift = 0.500"
• Min recommended spring height at full lift = 0.900"

SS-RACE-1050

• Seat pressure = 131lbs at 1.530“
• Rate = 310lb/in
• Max recommended lift = 0.500"
• Min recommended spring height at full lift = 1.000“
• Note: Not for use in street cars due to stress and wear induced to other valvetrain components

Vehicle Fitment:

Lancer Evolution I-IX 1992-2006

Eclipse GSX/GST 1990-1999

Galant VR-4 1989-1993

Talon TSI 1990-1998

Laser RS 1990-1994