Crower 74117F Features:

Crower 74117F shaft-mount rocker system for Victor 18°, GM 18°, and Dart 18° cylinder heads. Stainless steel rocker set with 5/8 in. shafts for high-performance valvetrain applications. Designed to cylinder head manufacturer specifications with a 1.650 intake/exhaust ratio. Configured with .550 and .250 offset dimensions for matching 18° head geometry requirements.

Shaft Rockers Victor 18 D 5/8 Shaft 1.650 Ratio Features:

• Stainless steel shaft-mount rockers for Victor 18°, GM 18°, and Dart 18° heads with 5/8 in. shaft compatibility
• 1.650 intake and exhaust ratio geometry for matched valvetrain motion and precise rocker setup on specified 18° applications
• .550 and .250 offset configuration built to cylinder head manufacturer specifications and maximum lift requirements
• Billet-style high-performance rocker system engineered for shaft-mount valvetrain stability in racing-oriented SBC builds
• Application-specific design for Dart SBC 15°, 16°, 18° clone LA and Victor 18° LA cylinder heads in custom valvetrain setups