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Street Race Truck More... The Toolbox
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$431.45
$342.99
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
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Part # 2821620
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

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
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!
  • 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.
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
  • Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.
  • In part 2, you will read about the Generation 4 small block series of V8s that share the same platform as the Generation 3 discussed in part 1.

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