Crower 74143B Features:

Crower 74143B steel-billet shaft rocker assembly for SBC engines Fits All Pro 13° 176 and Brodix AK27 cylinder heads Heavy-duty 5/8 in. shafts help maximize valvetrain stability Built for extreme racing conditions and high-rpm performance

Billet Shaft Rockers All SBC 13 Degree 5/8 In. Features:

• Steel billet shaft rocker assembly for SBC with All Pro 13° number 176 and Brodix AK27 cylinder head fitment
• Heavy-duty 5/8 in. shafts for increased valvetrain stability at high rpm and under extreme racing loads
• Billet rocker design for precise valvetrain control and reduced flex during demanding competition use
• Application-specific shaft-mount setup supports consistent rocker geometry for high-performance SBC builds
• Built for severe racing conditions where strength, stability, and reliable valve motion are critical