Brian Crower BC0040 Honda K20A/K20Z, F20C/F22C - Ltd Street Dual Valve Spring / Titanium Retainer / Seat Kit

Brian Crower BC0040 Honda K20A/K20Z, F20C/F22C - Ltd Street Dual Valve Spring / Titanium Retainer / Seat Kit Brian Crower BC0040 is an application-specific valve spring and retainer package for Honda K20A/K20Z, F20C/F22C - Ltd Street. The matched components are intended to provide controlled spring pressure and stable valvetrain operation in performance applications when installed to the correct height and clearance. Fitment / ApplicationHonda K20A/K20Z, F20C/F22C - Ltd Street Product Details Manufacturer: Brian Crower Manufacturer Part Number: BC0040 Product Type: Valve Spring & Retainer Kit Fitment / Application: Honda K20A/K20Z, F20C/F22C - Ltd Street Spring Type: Dual Spring Part Number: BC1040 Retainer: BC2010 Retainer Material: Titanium Kit Includes: Valve springs, Retainers, Spring seats Brian Crower Spring Specifications Free Length: 2.025" Seat Pressure: 1.590" @ 80 lbs Open Pressure: 1.110" @ 250 lbs Coil Bind: 1.030" Net Cam Lift: 0.550" / 13.97 mm Spring Seat: BC2904 Installation / Application NotesBrian Crower notes that late-model Honda cylinder heads (after 2004) may require BC2940 keepers to correctly accommodate BC2010/BC2011-style retainers because Honda changed the keeper-groove angle. Confirm keeper-to-retainer compatibility before assembly. Fitment NoteWe identify many performance components by engine family rather than by every individual chassis. Verify the engine code, cylinder head/valvetrain configuration, and required supporting components before ordering, especially on engine swaps or modified vehicles. Always verify installed height, coil-bind clearance, retainer-to-seal/guide clearance, and camshaft lift before final engine assembly.