The Melling 291004 High Performance Hydraulic Retro-Fit Roller Lifter Set is engineered for Ford 352-428 FE and 370-460 big block engines originally equipped with flat tappet camshafts. This set converts factory non-roller blocks to hydraulic roller operation, reducing friction and unlocking more aggressive cam profiles for serious street and strip builds. Note: different length pushrods may be required after installation.

Melling 291004 High Performance Hydraulic Retro-Fit Roller Lifter Set Features:

• Fits Ford 352-428 FE and 370-460 big block engines
• Retro-fit design for blocks originally equipped with flat tappet camshafts
• Converts engine to hydraulic roller lifter operation
• Reduces valvetrain friction for improved performance and longevity
• Accepts more aggressive cam profiles than flat tappet lifters allow
• Vertical link bar design for proper lifter alignment
• Different length pushrods may be required after installation
• Sold as a Set