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The Ultra Pro Magnumâ„¢ Roller Rocker Arms for Chevy V8 265-400 c.i.d. (SBC) Applications 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. These Rocker arms feature a 7/16″ Stud diameter and 1.52 ratio. 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 trunnions, 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.

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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, these rockers fit Chevrolet Small Blocks with a 7/16″ diameter stud.

The Ultra Pro Magnumâ„¢ Roller Rocker Arms for Chevy V8 265-400 c.i.d. (SBC) Applications 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. These Rocker arms feature a 3/8″ Stud diameter and 1.6 ratio. 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 trunnions, 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.

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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit Chevrolet Small Blocks with a 3/8″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.

Chevy V8 265-400 c.i.d. (SBC) – 1988 and later with Self Aligning Rockers – 3/8″ Stud – 1.6 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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit ’88+ Chevrolet Small Blocks with a 3/8″ diameter stud.

The Ultra Pro Magnumâ„¢ Roller Rocker Arms for Chevy V8 265-400 c.i.d. (SBC) Applications 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. These Rocker arms feature a 7/16″ Stud diameter and 1.6 ratio. 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 trunnions, 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.

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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit Chevrolet Small Blocks with a 7/16″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.

Chevy V8 265-400 c.i.d. (SBC) – 1988 and later with Self Aligning Rockers – 3/8″ Stud – 1.52 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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, these rockers fit ’88+ Chevrolet Small Blocks with a 3/8″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.Ford V8 Boss 302, 351C, 429-460 – 7/16″ Stud – 1.7 RatioInvestment 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 trunnions, 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.
These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, these rockers fit Ford Boss 302, 351C and 429-460 with a 7/16″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.

Ford V8 289-302-351W – 3/8″ Stud – 1.6 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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit Ford 289-351W with a 3/8″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.

Ford V8 Engines with Self Aligning Rockers – 3/8″ Stud – 1.6 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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these self-aligning rockers fit Ford V8’s with a 3/8″ diameter stud.

Ultra Pro Magnumâ„¢ 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 trunnions, 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.

Ford V8 289-302-351W – 7/16″ Stud – 1.6 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 trunnions, 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.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit Ford 289-351W with a 7/16″ diameter stud.

New LS-Specific Ultra Pro Magnumâ„¢ Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications.

For LS1/LS2/LS6/4.8L, 5.3L, and Pre ’07 6.0L Truck Engines – Cathedral Port Head LS Applications
Full Set Of 16 Stud Mount Rockers – Includes Poly Locks – Requires 3/8″ Studs & Guide Plates – GM LS Flat – 5/16″ Pushrod Diameter
1.8:1 Ratio

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, these rockers fit LS1/2/6 with a 3/8″ diameter stud.

New LS-Specific Ultra Pro Magnumâ„¢ Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications.

For LS1/LS2/LS6/4.8L, 5.3L, and Pre ’07 6.0L Truck Engines – Cathedral Port Head LS Applications
Full Set Of 16 Bolt Down Rockers – Includes Bolts
1.8:1 Ratio

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, these rockers fit non-adjustable pedestal mount LS1/2/6.

New LS-Specific Ultra Pro Magnumâ„¢ Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications.

LS3/L99/L76 – Rectangle Port Head LS Applications
Set Of 16 Stud Mount Rockers – Includes Poly Locks – Requires 3/8″ Studs & Guide Plates – GM LS Flat – 5/16″ Pushrod Diameter
1.8:1 Ratio

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, these rockers fit LS3 with a 3/8″ diameter stud.