Engines and Components› Camshafts and Valvetrain

Kiggly Racing

Valve Spring Set for 4G63

$469.00

SKU: SS-RACE

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kiggly Racing SS-RACE is a valve spring set designed for high RPM and high boost 4G63 applications. It features PAC Racing Beehive Springs, proprietary hardened chrome moly retainers, and treated steel seats. This kit provides extremely high seat pressure, with 135lb that can be shimmed up to 150lb.
Show original supplier description
The Kiggly Racing SS-RACE is a specialized valve spring set engineered for high RPM and high boost 4G63 engine applications demanding extreme seat pressure. This USA-made kit includes 16 PAC Racing Beehive Springs, FEA-optimized proprietary hardened chrome moly retainers, and treated steel seats. With a base seat pressure of 135lb (adjustable up to 150lb via shimming), this set targets builds running over 45lbs of boost. The springs have a rate of 310lb/in and are designed for a 1.530" installed height at OEM head specifications. Coil bind occurs at 0.965", and a minimum height of 1.010" at maximum lift is noted for shimming. This valve spring kit is exclusively recommended for sanctioned drag racing due to the high seat pressure and the resulting stress and wear it imposes on other valvetrain components. It is explicitly not for use in street cars. Vehicle fitment includes Mitsubishi 4G63 models such as the Evolution I-IX (1992-2006), Eclipse GST/GSX (1990-1999), Talon TSi (1990-1998), Laser RS (1990-1994), and Galant VR4 (1991-1992).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKiggly Racing
Part NumberSS-RACE
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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