Crower 84145X3 Features:

Crower 84145X3 valvetrain kit for 1966-1991 AMC V8 290, 304, 343, 360, 390, and 401 engines. Includes CamSaver hydraulic lifters 66031X3-16, dual valve springs 68390X3-16, and retainers 87049-16. Dual springs rated at 115 lb seat pressure at 1.800 in. and 331 lb nose pressure at 1.300 in. CamSaver lifters improve oiling to cam lobes to help reduce flat-tappet wear in performance street builds.

Kit AMC 290-401 Dual Spri Dual Spring Camsaver Hydraulic Features:

• Dual valve spring and CamSaver hydraulic lifter kit for 1966-1991 AMC 290, 304, 343, 360, 390, and 401 V8 applications
• 115 lb seat pressure at 1.800 in., 331 lb nose pressure at 1.300 in., and 1.110 in. coil bind for matched valvetrain control
• CamSaver lifters direct added oiling to cam lobes to help reduce flat-tappet wear in hydraulic flat-tappet performance builds
• Matched for hot-street valvetrain upgrades with extended rpm capability and stronger mid-range to top-end power delivery
• Includes 16 hydraulic lifters, 16 dual springs, and 16 retainers; machine work may be required for proper installation clearance