ARC 36# Single Valve Spring for Modified Clone Engines
$11.90 USD
Sale price
$11.90 USD
Regular price
Push boundaries with the ARC 36# single spring, rated for extreme RPM in modified Clone and compatible engines, delivering unwavering control where stock parts falter.
- 36lbs pressure at .850" for solid valve seating
- Coil bind at .450" to fit tight heads
- Suits BSP 196cc, GX200, non-Hemi 212cc; not for stock valves
For racers chasing 9,000 RPM glory, this spring prevents float, ensuring valves snap shut precisely for optimal fill and fire—key to surging past competitors. Note: Hemi 212cc needs pocket mods. Pair with stainless valves and proper retainers for a setup that thrives under pressure.
Not for stock configurations. Its arc design sheds weight without sacrificing strength, aiding quicker revs and track dominance.
SKU: DJ-1057Frequently Asked Questions
Q: Can I use these springs with my stock valves?
A: No. These 36# springs are designed for high-performance modified engines and are not compatible with stock valves. We strongly recommend pairing these with high-quality stainless steel valves to handle the increased seat pressure.
Q: What is the coil bind height for this spring?
A: The ARC 36# spring reaches coil bind at .450". Please ensure your camshaft and rocker arm geometry are set up to accommodate this to prevent engine damage.
Q: Will these fit my Hemi 212cc engine?
A: They are compatible with the non-Hemi 212cc, GX200, and BSP 196cc engines. If you are using a Hemi 212cc engine, you will need to perform pocket modifications to the head to ensure proper fitment.
Q: Why do I need 36lb springs for my racing kart?
A: If you are pushing your engine toward 9,000 RPM, stock springs will experience "valve float," where the valve fails to close fast enough. These 36# springs provide the necessary pressure to keep the valve train stable, ensuring optimal combustion and preventing power loss at high RPMs.