Go Fast Bits Standard Replacement Piston Spring for Valves
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This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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Go Fast Bits part gfb6115. This is the default spring rate across the GFB valve range and the firmer of the two options, which is why it appears in the atmosphere conversion kits.
Fit it if your valve will not stay closed at idle once venting to atmosphere, since a hovering piston causes stalling and backfiring. Valve 1002 uses the softer gfb6116 instead.
Shipping Height: 1.0
Shipping Length: 6.0
Shipping Width: 1.0