Manley Ford Coyote 5.0L 31.5mm Extreme Duty Exhaust Valves (Set of 8) - 12627-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves w/ Bead Loc Keeper Groove (Set of 8) - 12623B-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves (Set of 8) - 12623-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $47.79 Was: Now: $35.92 Add to Cart
Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $395.52 Was: Now: $297.32 Add to Cart
Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $49.44 Was: Now: $37.17 Add to Cart
Manley Chevy LS-3 / L-99 (L-92 Head) 1.600in Head Diameter Pro Flo E.D. Exhaust Valves (Set of 8) - 12357-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley 94-97 Chevy 5.3L LS/L83 1.930 Head Diameter Pro Flo Intake Valves (Set of 8) - 12356-8 MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevy LS-3 / L-99 (L-92 Head) 2.165in Head Diameter Pro Flo Intake Valves (Set of 8) - 12354-8 MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12352-8 MSRP: $395.52 Was: Now: $297.32 Add to Cart
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12352-1 MSRP: $49.44 Was: Now: $37.17 Add to Cart
Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley Chevy LT-1 1.590 Head Diameter Pro Flo Exhaust Valves (Set of 8) - 12349-8 MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley Chevy LT-1 6.2L 1.590in Head Diameter Pro Flo/Severe Duty Exhaust Valves (Set of 8) - 12347-8 MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8) - 12333B-8 MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8) - 12333-8 MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8) - 12332H-8 MSRP: $716.57 Was: Now: $538.68 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8) - 12332B-8 MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley Ford Coyote 5.0L 31.5mm Extreme Duty Exhaust Valves (Set of 8) - 12627-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves w/ Bead Loc Keeper Groove (Set of 8) - 12623B-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves (Set of 8) - 12623-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $47.79 Was: Now: $35.92 Add to Cart
Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $395.52 Was: Now: $297.32 Add to Cart
Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $49.44 Was: Now: $37.17 Add to Cart
Manley Chevy LS-3 / L-99 (L-92 Head) 1.600in Head Diameter Pro Flo E.D. Exhaust Valves (Set of 8) - 12357-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley 94-97 Chevy 5.3L LS/L83 1.930 Head Diameter Pro Flo Intake Valves (Set of 8) - 12356-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevy LS-3 / L-99 (L-92 Head) 2.165in Head Diameter Pro Flo Intake Valves (Set of 8) - 12354-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12352-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $395.52 Was: Now: $297.32 Add to Cart
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12352-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $49.44 Was: Now: $37.17 Add to Cart
Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley Chevy LT-1 1.590 Head Diameter Pro Flo Exhaust Valves (Set of 8) - 12349-8 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy:... MSRP: $652.80 Was: Now: $490.74 Add to Cart
Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley Chevy LT-1 6.2L 1.590in Head Diameter Pro Flo/Severe Duty Exhaust Valves (Set of 8) - 12347-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Was: Now: $287.39 Add to Cart
Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $239.60 Was: Now: $180.12 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8) - 12333B-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8) - 12333-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Was: Now: $193.35 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8) - 12332H-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $716.57 Was: Now: $538.68 Add to Cart
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8) - 12332B-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Was: Now: $193.35 Add to Cart
