Crower 74188B Features:

Billet steel shaft rockers for SBC Brodix 11° heads with 4.500 in. bore spacing 1.650 in. arm length with .650 intake offset and .170/.270 exhaust offset CNC-machined from ball-race alloy steel, twice heat-treated, and micro-finish ground Hardened tip wheel and thread-rolled hi-temp alloy lash adjusters for race use

Billet Shaft Rockers Sb C SBC Brodix 11° 4.500 Features:

• Billet steel shaft rockers for SBC Brodix 11° heads, 4.500 in. bore spacing, race-ready valvetrain geometry and stable shaft-mounted operation
• CNC-machined ball race alloy steel, double heat-treated and micro-finish ground for high-strength wear resistance under high-rpm loads
• 1.650 in. arm length with .650 intake offset and .170/.270 exhaust offset for precise fitment and optimized valvetrain alignment
• Hardened tip wheel reduces scrubbing, while precision thread-rolled hi-temp alloy lash adjusters support accurate valve lash control
• Optional needle-bearing, bushed tip, or DLC-coated pin upgrades help cut friction, reduce valve guide wear, and improve valve control