Product Description: Big Block Chevy (1.65 FL) – Rocker Arm .120 Left ( for Crower Stands )
Includes:
- 1 Rocker Arm
- 1 Adjusting Screw
- 1 Jam Nut
- 1 Rocker Arm Shaft
- 4 Shims
- 2 Shaft Bolts
Specifications:
- Fulcrum Length: 1.650
- Ratio: 1.72
- Pushrod Offset: .120 Left
- Adjuster: 826 (3/8 ball with pressure-fed oil)
- Shaft: Crower bolt spacing
Product Overview:
The Manton I-Beam Rocker Arm is engineered for maximum strength, stiffness, and stability, ideal for high-abuse applications. The I-beam design, rooted in historical engineering principles, offers unparalleled strength and reliability. The original I-beam design, seen in early Chrysler Hemi rocker arms and dating back to 1918, has proven its superiority in various structures, including bridges and buildings.
Features:
- Highest Strength-to-Weight Ratio: Crafted from premium-grade Billet steel and heat-treated for enhanced durability.
- Tool Steel Rockerarm Shaft: Nitride-treated to minimize shaft breakage.
- High-Load Bushing with Pressurized Oiling: Oil flows from lifters through the pushrod to the adjusting screw, enhancing lubrication and reducing friction.
- Fully Bushed Design: Eliminates needle bearings, offering higher load capacity, lower friction, better oil control, and improved spring stability.
- Adjustable Oil Spillage: Shims allow for precise oil pressure and velocity adjustments to meet specific engine requirements.
- Enhanced Pushrod and Roller Interface: Designed to handle higher RPMs and increased abuse, featuring a resilient 3/8 ball adjusting screw.
- Durable Roller Tip: Equipped with a large .571″ roller wheel and .275″ pin, capable of withstanding engine speeds over 12,000 RPM and cylinder pressures exceeding 24,000 psi.
Compatibility:
Manton billet rocker arms can directly replace T&D or Crower rocker arms of the same ratio, fitting seamlessly onto their stands.
Optimize your engine’s performance and reliability with Manton’s superior I-Beam Rocker Arm Kit. Order now to experience the ultimate in engineering excellence and high-performance capability.










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