Amc V8 304-401 Solid Lifters

The COMP CAMS Amc V8 304-401 Solid Lifters (SKU: COM801-16) are a complete set of 16 mechanical flat tappet lifters engineered for small block Mopar and AMC V8 engines. These solid lifters are the backbone of high-performance street and race builds where consistent valve timing and durability matter. Unlike hydraulic lifters, solid mechanical lifters eliminate compliance loss and deliver direct, instantaneous valve actuation—critical when you're pushing higher RPMs or running aggressive cam profiles. This set is purpose-built for 304, 360, and 401 cubic-inch AMC platforms, making it an essential upgrade for engine rebuilds, performance swaps, or full restorations on classic Javelins, Ramblers, Gremlins, and Jeep applications.

Each lifter features a 0.904-inch outer diameter precisely machined to OEM specifications for proper bore fit and zero runout. The flat tappet design maintains full contact with the cam lobe, distributing load evenly across a larger surface area and reducing wear compared to roller variants in vintage applications. COMP CAMS' manufacturing tolerances ensure consistent valve lift and duration across all 16 units, critical when chasing tight piston-to-valve clearances or tuning ignition timing on solid-lifter mills. The mechanical design eliminates hydraulic damping, meaning your valve events occur with razor-sharp precision—every RPM, every pull. This set weighs 3.7 pounds and fits within standard small block dimensions, integrating seamlessly into factory or aftermarket cylinder heads without modification.

Restorers, drag racers, and hot rodders rebuilding early AMC engines will find these lifters essential when transitioning from worn hydraulic units or when installing a wilder cam profile. Solid lifters demand proper valve lash adjustment and a solid understanding of pushrod geometry, so installation is best suited to experienced mechanics or shops familiar with solid-lifter setup procedures. Compatibility spans the full AMC V8 family—verify your engine block casting number and cylinder head port pattern before ordering. These lifters ship as a complete 16-piece set, so no additional sourcing is needed for a full rebuild. For anyone serious about AMC performance or restoration, this COMP CAMS set delivers the reliability and precision that separates a weekend project from a show-winning engine.