Brian Crower BC0480 Jeep/AMC 4.0L/4.2L Dual 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 / Application

Jeep/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 Note

We 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.