Brian Crower BC0480 Jeep/AMC 4.0L/4.2L Dual Valve Spring / Steel Retainer Kit

Brian Crower BC0480 Jeep/AMC 4.0L/4.2L Dual Valve Spring / Steel Retainer Kit Brian Crower BC0480 is an application-specific valve spring and retainer package for Jeep/AMC 4.0L/4.2L. 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 / ApplicationJeep/AMC 4.0L/4.2L Product Details Manufacturer: Brian Crower Manufacturer Part Number: BC0480 Product Type: Valve Spring & Retainer Kit Fitment / Application: Jeep/AMC 4.0L/4.2L Spring Type: Dual Spring Part Number: BC1480 Retainer: BC2480S (4140 chromoly steel) Retainer Material: Steel Kit Includes: Valve springs, Retainers Brian Crower Spring Specifications Free Length: 1.795" Seat Pressure: 1.700" @ 110 lbs Open Pressure: 1.200" @ 297 lbs Coil Bind: 0.980" Spring Seat: Uses OEM spring seat 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.