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Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud

Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud

Chevy Small Block V8

7 Reviews | 6 Answered Questions
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Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
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Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 3/8 Stud
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Part # 91511768
$239.99
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  • One of the best kept secrets
  • Initial run times can kill a camshaft in the first minutes
  • Break-in rocker arms ease extreme valve spring pressures
  • These rockers use a 1.3 ratio to allow a run-in time for the camshaft
  • Engine is then race - street ready or ready for the dyno

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MFG. Part #:
91511768

Info

Probably one of the best kept secrets...the best engine builders use break-in roller rocker arms. With the extreme valve spring pressures racers use today, the initial run time can kill a camshaft in the first minute of running.

The big time engine builders use these 1.3:1 ratio rockers to allow a run-in time for the camshaft, then the 1.3:1 rockers are removed and the normal rockers are reinstalled and the engine is ready to race or dyno.

Polylocks are included.

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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Reviews

Q & A

Videos & Articles
  • What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
  • Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!
  • To get the longest life and most performance out of your engine, it's important to have the valve lash set correctly. Here we show you how to set valve lash on a small block Chevy using a hydraulic lift camshaft.
  • Once you're ready to start selecting valve train components, we have some useful tips and tools that should boost your performance. We discuss proper valve-springs, pushrod length, and rocker arm ratios.
  • Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.
  • A guide on how to check piston to valve clearance to prevent interference. See what tools are used to make this process easier.
  • Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.

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