Crower 84510M Features:

Mechanical roller lifter kit for 1963-1995 Ford small-block V8 221, 255, 260, 289, 302, and Boss 302 applications. Complete kit includes Crower mechanical roller lifters part 66215-16, valve springs, retainers, and valve seals. High-pressure valve springs part 68804H-16 deliver 293 lb seat pressure and 611 lb nose pressure for high-rpm use. Designed for engine builds up to 8,000 RPM and primarily fits 11/32 in. valve stem applications.

Roller Lifter Kit Ford 22 Mechanical Roller, Up To Features:

• Mechanical roller lifters for Ford small-block V8, complete valvetrain upgrade kit, drop-in package for 1963-1995 applications
• High-pressure valve springs, 293 lb seat pressure, 611 lb nose pressure, supports up to 8,000 RPM in racing builds
• Includes lifters, valve springs, retainers, and valve seals for streamlined engine build installation and parts matching
• Designed for 11/32 in. valve stems, optimized for 221, 255, 260, 289, 302, and Boss 302 small-block engines
• Mechanical roller conversion for early Ford V8 builds, engineered for high-rpm performance and valvetrain control