Seller notes

Severe Duty Exhaust ValveBig Block Chevy1.880'' Diameter11/32'' (0.3415'') Stem Diameter5.422'' Overall Length (Stock)Stainless Steel1/pkg. Type: Exhaust Valve XH-428 MaterialHead Diameter: 1.880''Stem Diameter: 11/32'' / 0.3415''Installed Height: StockOverall Length: 5.422''Tip Length: 0.250''Underhead Angle / Radius: 10° x 3/8''Margin: 0.075''Seat Width: 0.085''Top of Head: 6° DishWeight / Grams: 122 Manley 11843-1 Severe Duty Exhaust Valve Severe Duty Exhaust ValveBig Block Chevy1.880'' Dia...

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