Crower 66378X937H-2 Features:

Crower 66378X937H-2 severe-duty mechanical roller lifters for Ford 289, 302, and 351W small block V8 applications 0.937 in. OD body with 0.150 in. intake offset and oversized 0.850 in. bearing for high-load valvetrain control HIPPO high-pressure pin oiling system helps support durability under extreme friction, high cylinder pressure, and high-rpm use Cutaway billet alloy body with a lightweight design and raised heavy-duty blade for proper fit in late-model engine blocks

Severe Duty Rollers 289-3 .937 In. Od, .150 In. Features:

• 0.937 in. OD lifter pair for 289, 302, 351W Windsor applications, intake-offset mechanical roller design
• 0.850 in. oversized bearing for improved load capacity in high-cylinder-pressure, high-rpm racing valvetrains
• HIPPO pin oiling system for maximum pin lubrication, reduced friction, and severe-duty durability under load
• Billet alloy cutaway body with raised heavy-duty blade for late-model block fitment and lighter valvetrain mass
• 2-piece severe-duty mechanical roller lifter set engineered for extreme-rpm performance and uncompromising valve control