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Valve Spring Kit, Dual Valve Spring Kit Honda GX390 Predator 420cc Big Blocks Hot on Sale
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- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
Pair of Dual Valve Springs for GX270, GX390, and 420 Predator
Our dual valve spring rates are as follows:
Using our spring locator (spring pads will need machined)
68 lbs at 1.200 installed height
150 lbs at .470 valve lift (.730 spring height)
.050 coil bind clearance
Specs using no spring locator with no inner spring step
58 lbs at 1.200 installed height
140 lbs at .470 valve lift (.730 spring height)
.050 coil bind clearance
- Our dual valve spring kit will fit GX240, GX270, GX340 and GX390 engines.
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