Brian Crower Mazda MZR Valve Spring & Retainer - Steel Retainers

Shop Brian Crower camshafts, connecting rods, crankshafts, valves, valve springs, and retainers at Black Ops Auto Works. Explore engine-specific components for naturally aspirated builds, turbocharged projects, and performance rebuilds. This collection also includes selected valve guides, adjustable cam gears, keepers, bushings, and head gaskets to support your engine assembly plan. Brian Crower Performance Camshafts Choose Brian Crower camshafts by the exact engine application, cam profile, and intended operating range. Selected listings include naturally aspirated and forced-induction profiles for Honda, Acura, Toyota, Nissan, Mitsubishi, Dodge, and other engines. Stage designations help identify options within a particular application, but they do not describe one universal specification across every engine. Compare the manufacturer’s cam card, lift, duration, and supporting-component requirements before ordering. A larger cam profile is not automatically the right choice for a s...

Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...

Match the valve-spring package to your camshaft and cylinder head with Supertech, Brian Crower, GSC, Ferrea, COMP Cams, Skunk2 and other listed references. Compare single, dual and beehive designs, separate retainers and matched kits. Choose the required spring pressures and geometry for the complete valvetrain, not a higher-pressure spring by default.Single, Dual and Beehive ChoicesSpring design must suit the cam profile, valve mass, operating range and installed height. A dual spring is not automatically appropriate for every upgraded cam, and a beehive spring still needs the correct retainer and seat.Vehicle/engine-specific kits cover different hardware combinations. Some Supertech references explicitly retain OEM retainers and seats; other kits supply matched retainers or locators. Compare contents before ordering separate pieces.Retainers, Seats and LocksCompare titanium, steel and other named retainer references by exact spring dimensions, lock angle and valve-stem/groove arra...

Plan a coordinated cylinder-head service or performance build with engine valves, guides, seals, springs, retainers and keepers. Browse Supertech, GSC Power-Division, Ferrea, Brian Crower, COMP Cams and other listed references, plus valve covers and sealing hardware. Start with the engine, cylinder heads and actual camshaft/valve arrangement.Valves, Guides and Oil SealsChoose intake and exhaust valves by complete dimensions, material and groove design. Standard and oversize head diameters have different machining needs; a larger valve is not automatically a drop-in or a power improvement.Match guides to the head bore, valve stem and approved installed geometry. Seals must fit both stem and guide, with correct intake/exhaust coverage and any integrated-seat requirement. Use the exact companion references when a manufacturer specifies a matched combination.Springs, Retainers and LocksCompare single, dual and beehive spring packages against the cam requirements and measured installed h...