Designed for high RPM and high boost 4G63 Evo, DSM and GVR4 requiring extremely high seat pressure. Recommended for sanctioned drag racing only due to the high seat pressure and ensuing valvetrain stress and wear. Not for use in street cars.
Includes:
(16) Chrome Moly Retainers
(16) PAC Racing Beehive Springs
(16) Treated Steel Seats
Vehicle Fitment:
Mitsubishi 4G63
1992-2006 Evolution I-IX
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1993 Galant VR4
Full Description:
The Kiggly Racing “Race Only” Beehive Valve Spring Set is designed for high RPM and high boost 4G63 applications requiring extremely high seat pressure. This kit is made in the USA and includes an aggressive PAC Racing Beehive Spring, FEA-Optimized proprietary hardened chrome moly retainers and treated steel seats.
These springs are for serious builds only with a seat pressure of 135lb that can be shimmed up to 150lb, targeting cars running more than 45lbs of boost. Recommended for sanctioned drag racing only due to the high seat pressure and ensuing valvetrain stress and wear. Not for use in Street Cars.
Features:
• For Drag Racing Only
• Not for use in Street Cars
• 310lb/in
• 1.530″ Installed Height at OEM Head Specs
• 137lbs at 1.530″ Installed Height
• Coil Bind = 0.965″
• Min Height at Max Lift = 1.010″ (for shimming)
• Use ~17mm ID Shims as-needed
• 100% Made in the USA!
Additional Shims are available separately:
• 0.015″
• 0.030″
• 0.060″
| Part Number | Item ID |
| 1050 | SS-RACE |
See more Kiggly Racing Products
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Returns
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