Crower 84217LW980 Features:

Crower 84217LW980 kit fits Ford 221, 225, 260, 289, 302, and Boss 302 V8 engines. Includes lightweight coolface solid lifters, dual valve springs, and retainers for valvetrain setup. Engineered for high-rpm performance, with race-oriented components capable of 7500+ RPM operation. Designed for 11/32-in. valve stems; verify stem size, as some early Ford heads use 5/16-in. stems.

Kit Ford 221 225 260 289 Dual-spring Lightweight Coolface Features:

• Dual-spring valvetrain kit for Ford 221, 225, 260, 289, 302, and Boss 302 V8 applications with matched components for solid-lifter setups
• Lightweight coolface solid lifters support high-rpm stability and reduced valvetrain mass for aggressive performance camshaft combinations
• Matched for 11/32 in. valve stems; verify stem size on early Ford heads that may use 5/16 in. stems before installation
• Engineered for 7500+ RPM race-use or limited street-use builds; requires cylinder-head machine work for proper fitment and setup
• Boss 302 applications need custom spring and retainer selection, plus gross valve-lift recalculation for the 1.73 rocker ratio