Brian Crower Honda/Acura K20A/K20Z F20C/F22C-High Mileage Dual Spring and Steel Alloy Retainer & Spr
Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.
Specifications
- WARNING: If running a late model cylinder head (after 2004), you may need to purchase BC2940 keepers to accommodate the BC2010 or BC2011 retainers. Honda changed the keeper groove angles, therefore your stock keepers/locks may not fit the BC retainers properly causing potential damage.
- Type: BC1040 Dual
- Free Length: 2.025"
- Seat: 1.590" @ 80 lbs
- Open: 1.110" @ 250 lbs
- Coil Bind: 1.030"
- Retainer: BC2011
- Spring Seat: BC2904
- Net Cam Lift: 0.550" / 13.97mm
Features & Benefits
- Precision engineered for high performance applications.
- Supports increased RPM and power levels.
- Manufactured from premium materials for durability.
- Direct-fit upgrade for compatible engines.
Fitment
- 2002-2005 honda civic si~2000-2009 honda s2000 base~2008-2009 honda s2000 cr
About Brian Crower
Brian Crower is a leading manufacturer of high performance engine internals, including camshafts, crankshafts, connecting rods, and valvetrain components. Each part is engineered for reliable horsepower gains and durability in demanding street, track, and forced induction applications.
Brian Crower
Welcome to the Brian Crower collection, where high performance meets reliability. Brian Crower, Inc. was established to satisfy the demand for premium quality internal engine components tailored for late model vehicles. Our collection features an extensive range of stroker kits specifically designed for popular sport compact applications, along with carefully crafted camshafts and valve train components that complement each other seamlessly. Unmatched Quality and Performance Every product in the Brian Crower collection is engineered for maximum horsepower and torque while ensuring greater engine longevity. Utilizing cutting-edge CNC grinding technology, we maintain precise tolerances across all our offerings. Our specialized camshaft grinding wheels, used for select models such as Honda B and K Series, Nissan SR20, and Mitsubishi 4G63, enhance valve action, resulting in improved cylinder fill rates. Premium Materials for Superior Results At the heart of the Brian Crower collection i...
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Engine
Browse all our engine parts and engine components at Black Ops Auto Works, including oil catch cans, pulleys, thermostats, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, cooling upgrades, and engine bay dress-up parts for trucks, SUVs, muscle cars, and performance vehicles. Whether you are maintaining a street build, upgrading a high-horsepower setup, or improving under-hood styling, this collection is built for customers searching for engine parts, engine bay accessories, cooling upgrades, catch cans, and performance engine components. Shop Top Engine Brands Find trusted brands across the engine category, including: Billet Technology Mishimoto ZPE GripTec MightyMouse Solutions Cordes Performance Granatelli Cometic BBK Corsa These brands are popular for oil catch cans, thermostat housings, engine bay accessories, radiator and coolant upgrades, supercharger pulleys, throttle bodies, and performance engine hardware. Engine Pa...
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Browse all of our valves and valvetrain components at Black Ops Auto Works, including engine valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and related valvetrain hardware for performance builds, engine refreshes, and high-horsepower applications. Whether you are rebuilding a cylinder head, upgrading your valvetrain for higher RPM, or replacing worn valve train components, this collection is built for customers searching for engine valves, valve springs and retainers, valve cover gaskets, performance valve covers, and valvetrain upgrades. Shop Top Valvetrain Brands Find trusted brands in the valve and valvetrain category, including: GSC Power Division Supertech Brian Crower Ferrea Manley Performance Cometic Granatelli Moroso BLOX Racing These brands are known for performance intake valves, exhaust valves, valve spring kits, titanium retainers, valve guides, valve locks, valve seals, billet valve covers, an...
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