Crower 66322-2 Features:

Crower 66322-2 hydraulic roller lifters for GM LS1 applications, sold as a pair Integral 1-piece body design reduces weight while maintaining structural rigidity Control-contoured tapered needle bearings help support higher load capacity Precision flow-checked for optimal leak-down rates and dependable hydraulic operation

Hydraulic Roller Lifters Gm LS1 Pair +.190 In. Longer Features:

• GM LS1 fitment; requires +0.190 in. longer-than-stock pushrod; sold as pair for valvetrain service and performance-oriented engine combinations
• Hydraulic roller design; combines roller valvetrain performance with dependable hydraulic operation for reduced maintenance and consistent street-strip behavior
• Integral 1-piece body; redesigned to reduce weight without sacrificing structural rigidity for improved stability in demanding high-rpm applications
• Control-contoured tapered needle bearings; engineered for superior load capacity to support durability under aggressive cam profiles and valvetrain stress
• Precision flow-checked leak-down rates; promotes consistent lifter performance and reliable operation for premium LS1 engine builds and upgrades