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COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7
COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7

COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7

396 Chevy Big Block V8, 402 Chevy Big Block V8, 427 Chevy Big Block V8, 454 Chevy Big Block V8

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COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7
COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7
COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7
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COMP Cams 1620-16 Ultra Pro Magnum Roller Rocker Arms, Chevy 7/16 -1.7
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Part # 2821620
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Details

Rocker Arm Style:
Roller
Rock Arm Ratio:
1.7
Stud Diameter:
.44"
Material Type:
Steel
Finish:
Black Oxide
MFG. Part #:
1620-16
Sold in Quantity:
Set
GTIN Code:
036584196051
Color:
Black

Info

Ultra Pro Magnum™ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums™, but they also take stud mount rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring oversized trunions, precision-sorted needle bearings and hardened roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
  • Set of 16
  • Chevy big block V8 396-454 cid - 7/16" Stud - 1.7 Ratio
  • Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.
  • Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
  • Feature oversized trunions, precision-sorted needle bearings and hardened roller tips.
  • Lifetime Warranty - So strong that we guarantee the rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.

Item Details

Set/16
BBC 396-454
7/16" Stud - 1.7 Ratio

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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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!
  • Picking the right camshaft can be a challenge. Use our camshaft selection guide to learn how to select the right cam for your street rod's best performance.
  • 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 in just eight steps.
  • 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.
  • 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.
  • Follow along as we install a Pete Jackson Noisy Gear Drive on a Chevy 454. Learn about the installation process from Speedway Motors Street Tech Kevin.

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