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MTM421-600 -Mast Motorsports 5/16" Solid Steel Race Valves 1.600", Exhaust, (5.450")

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $18.99


LS3 12 Degree 3.900"-3.930" Small Bore CNC
LS3 12 Degree 4.125"-4.200" Small Bore CNC

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  • 2.0 lbs.

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