Crower 66215X937H-2 Features:

Crower 66215X937H-2 severe-duty solid roller lifters for Ford 221, 351, and 400 engines; sold as a 2-piece pair. Large 0.937 in. OD design fits race blocks with enlarged lifter bores for high-RPM and high-load valvetrain setups. HIPPO high-pressure pin oiling uses EDM-drilled oil feed from the oil band to the needle bearings for targeted lubrication. 1-piece billet alloy bodies, heat-treated tool steel axles, and micro-polished needle bearings support extreme cylinder pressure.

Roller Lifters Ford 221-3 .937 In. Od Hippo Pair Features:

• Severe-duty solid roller lifters for Ford 221, 351, and 400 race blocks with 0.937 in. OD enlarged-bore fitment and pair quantity for focused valvetrain service or custom set building.
• HIPPO high-pressure pin oiling with EDM-metered oil feed from the oil band to the needle bearings for critical lubrication, longer cycle life, and improved upper valvetrain oil delivery.
• One-piece billet alloy body for reduced valvetrain weight and maintained rigidity under high-load, high-rpm racing conditions where stability and precise lifter control are essential.
• Heat-treated tool steel axles, micro-polished precision-sorted needle bearings, and premium stainless steel alignment blades for extreme cylinder pressure durability and dependable roller tracking.
• Designed for severe-duty solid roller applications requiring race-ready strength, consistent bearing lubrication, and reliable performance in high-rpm Ford 221-351-400 engine combinations.