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Big Block Chevy Stainless Steel Roller Rocker Arms
Big Block Chevy Stainless Steel Roller Rocker Arms

Big Block Chevy Stainless Steel Roller Rocker Arms

Chevy Big Block V8, Roller Rocker Arm Style, 1.7 Rocker Arm Ratio, 0.4375" Stud Size

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Big Block Chevy Stainless Steel Roller Rocker Arms
Big Block Chevy Stainless Steel Roller Rocker Arms
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Part # 57524542
$239.99
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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
Rocker Arm Ratio:
1.7
Stud Size:
0.4375"
Stud Diameter:
0.4375"
Rocker Arm Nut Style:
Polylock
Material Type:
Stainless Steel
MFG. Part #:
57524542
Sold in Quantity:
Set
Self-Aligning:
No

Info

These full-roller Stainless Steel rockers incorporate an exceptional lightweight design that provides plenty of clearance for large diameter springs. Manufactured from premium quality 15-5 PH stainless steel, a superior alloy high in Nickel and Chromium, this rigid material provides high yield strength to help resist deflection and has extraordinary fatigue resistance.

Features full-cage friction reducing needle bearings. The nose rollers and shafts are Cr40 steel, heat-treated and hardened to resist the severity of racing and to minimize "scrubbing". Each rocker body is hand-polished, assembled and carefully inspected to provide our customers with some of the finest quality rocker arms available to the racing and performance industry. 

  • Strong 15-5PH stainless steel
  • Specially cast and machined for larger valve springs and retainers
  • Light weight with integral pushrod seat
  • Oversize trunions and full roller precision needle and cage bearings
  • More needle bearings for increased performance and rocker life
  • CNC machined pushrod cups and heat-treated Cr40 roller tips
  • Internal oiling system for long lasting performance
  • H.D. Polylocks included

For 1968-1997, 302-460 c.i. Ford

For 396-454 c.i. B/B Chevy V8. 1.7:1 ratio for 7/16" stud. Includes polylocks.

For 348/409 c.i. Chevy W-Series V8. 1.7:1 ratio for 7/16" stud. Includes polylocks. 

Item Details

1.7 Ratio - 7/16" Stud

Application

  • 396 V-8 1966-1970
  • 402 V-8 1970-1972
  • 427 V-8 1966-1969
  • 454 V-8 1996-2000
  • Chevy 396-454, 348-409W 1958-2000

Notes

Features:

  • Designed for higher open valve spring pressures
  • Strong 15-5PH stainless steel
  • Specially cast and machined for larger valve springs and retainers
  • Light weight with integral pushrod seat
  • Oversize trunions and full roller precision needle and cage bearings
  • More needle bearings for increased performance and rocker life
  • CNC machined pushrod cups and heat-treated Cr40 roller tips
  • Internal oiling system for long lasting performance
  • H.D. Polylocks included

 

Some parts are not legal for use in California or other states with similar laws/regulations

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