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Rocker Arms- Full Roller Rockers
Pontiac V8 Rocker Arms- Full Roller Rockers
Ratio, Material, Clearance — Rocker Arms- Full Roller Rockers for Pontiac V8s
Full roller rockers put a needle-bearing fulcrum and a roller tip between the pushrod and the valve, cutting the friction and the valve-tip scrub that a stock stamped rocker lives with. On a Pontiac V8 running a performance cam and stiff springs, that is the difference between a valvetrain that settles down and one that wears its guides out.
Butler carries Butler Exclusive Tru-Ratio Endurance Series rockers built by Scorpion in 1.5, 1.6 and 1.65, Butler Stainless Pro Series 17-4ph stainless in 1.52 and 1.65, Comp Cams Ultra-Gold ARC aluminum, Crower Enduro stainless, PRW Elite stainless and Pro Series billet aluminum, and Scorpion Endurance sets.
Browse Rocker Arms- Full Roller Rockers Products
Items 1-19 of 19
Description: Butler Exclusive Pontiac 1.5 Ratio *ENDURANCE* Series Roller Rockers manufactured by Scorpion (Set/16)
Includes Poly-Locks
Item #: SCP-BP-3152-16
Condition:
New
Price: $512.95
Description: Butler Exclusive Pontiac 1.6 Ratio *ENDURANCE* Series Roller Rockers manufactured by Scorpion (Set/16)
Includes Poly-Locks
Item #: SCP-BP-3165-16
Condition:
New
Price: $512.95
Description: Butler Exclusive Pontiac 1.65 Ratio *ENDURANCE* Series Roller Rockers manufactured by Scorpion (Set/16)
Includes Poly-Locks
Item #: SCP-BP-3153-16
Condition:
New
Price: $469.95
Description: Butler Stainless 1.52 Ratio Pontiac Roller Rockers
Premium quality 17-4 ph stainless steel rocker body
CNC machined pushrod cups and heat-treated Cr40 roller tips
Fully caged friction reducing...More Details »
Item #: BPI-RKR-SS-1.5
Condition:
New
Price: $429.95
Sale: $399.95
Save: 7%
Save: $30.00
Description: Butler Stainless 1.65 Ratio Pontiac Roller Rockers
Premium quality 17-4 ph stainless steel rocker body
CNC machined pushrod cups and heat-treated Cr40 roller tips
Fully caged friction reducing...More Details »
Item #: BPI-RKR-SS-1.65
Condition:
New
Price: $429.95
Sale: $399.95
Save: 7%
Save: $30.00
Description: For Pontiac V8 applications with 7/16 inches studs; 1.5 Ratio
CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
Designed for high performance street...More Details »
Item #: CCA-19060-16
Condition:
New
Free Ground Shipping
Price: $414.95
Description: For Pontiac V8 applications with 7/16 inches studs; 1.65 Ratio
CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
Designed for high performance street...More Details »
Item #: CCA-19061
Condition:
New
Free Ground Shipping
Price: $558.95
Description: Ratio: 1.5 - Stud: 7/16. Lightweight body design.
Item #: CRO-73627-16
Condition:
New
Price: $884.95
Description: Ratio: 1.6 - Stud: 7/16. Lightweight body design.
Item #: CRO-73623-16
Condition:
New
Price: $1,099.95
Description: Ratio: 1.65 - Stud: 7/16. Lightweight body design.
Item #: CRO-73624-16
Condition:
New
Price: $1,129.95
Description: Pontiac 1.52 Ratio Pontiac DNA Aluminum Roller Rockers (Set/16) W/Length Checker
Item #: SMA-1-261-015
Condition:
New
Not Available
Price: $239.95
Description: Pontiac 1.65 Ratio Pontiac DNA Aluminum Roller Rockers (Set/16)
Item #: SMA-1-261-016
Condition:
New
Price: $257.95
Description: Pontiac 350 389 400 421 428 455 1.52 Ratio 7/16" Aluminum Roller Rocker Arms Set/16
Item #: SMA-PCE261.1248
Condition:
New
Price: $219.95
Description: ROCKER ARMS, ELITE SERIES, 17-4ph STAINLESS, PONT 287-455 & 4.3L V8 1958-81, 1.52 x 7/16", Direct Oil Feed, Polished
Requires 2.100" Rocker Stud length for most application
Item #: PRW-62455752-16
Condition:
New
Price: $505.48
Description: ROCKER ARMS, ELITE SERIES, 17-4ph STAINLESS, PONT 287-455 & 4.3L V8 1958-81, 1.65 x 7/16", Direct Oil Feed, Polished
Requires 2.100" Rocker Stud length for most application
Item #: PRW-62455765-16
Condition:
New
Price: $505.48
Description: PQX 2024 Extruded Billet Aluminum Rocker Arms
1958-81 Pontiac 287-455 4.3L V8
Rocker Stud: 7/16"
Ratio: 1.52
16/pkg
Item #: PRW-6542101-16
Condition:
New
Price: $370.01
Description: PRW Pontiac Pro Series Billet Aluminum Rocker Arms 1.65
1958-81 Pontiac 287-455 4.3L V8
Rocker Stud: 7/16"
Ratio: 1.65
16/pkg
Item #: PRW-6542102-16
Condition:
New
Price: $370.01
Description: Pontiac Scorpion 1.5 Ratio *ENDURANCE* Series Roller Rockers (Set/16)
Includes Poly-Locks
Item #: SCP-SCP3052-16
Condition:
New
Price: $503.22
Description: Pontiac Scorpion 1.65 Ratio *ENDURANCE* Series Roller Rockers (Set/16)
Includes Poly-Locks
Item #: SCP-SCP3053-16
Condition:
New
Price: $503.22
Items 1-19 of 19
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More About Rocker Arms- Full Roller Rockers
1. Picking A Ratio
Ratio multiplies cam lobe lift at the valve. More ratio is more lift and more duration at the valve from the same cam, and more load on everything downstream.
| 1.5 and 1.52 | the conservative choice and the closest thing to what the factory ran. Butler stocks 1.5 in the Tru-Ratio Endurance Series, Comp Ultra-Gold and Crower Enduro, and 1.52 in the Butler Stainless Pro Series and PRW Elite stainless. |
| 1.6 | the middle step, available in the Tru-Ratio Endurance Series and the Crower Enduro line. Useful when you want more valve lift without re-cutting spring pockets for the coil bind a bigger cam would need. |
| 1.65 | the most common performance ratio on a Pontiac V8, offered across the Tru-Ratio Endurance Series, Butler Stainless Pro Series, Comp Ultra-Gold, Crower Enduro, PRW Elite and PRW Pro Series billet aluminum. |
| True ratio matters | the Butler Exclusive Tru-Ratio Endurance Series is built to deliver the ratio stamped on the arm. A rocker that reads 1.65 and delivers less is a cam you paid for and did not get. |
2. Stainless Or Aluminum
Both materials are here for a reason, and the choice usually comes down to how the engine is used rather than how much power it makes.
| 17-4ph stainless | Butler Stainless Pro Series arms are 17-4ph stainless with CNC machined pushrod cups, heat-treated Cr40 roller tips and shafts, full-cage needle bearings and oversized trunnions, carrying a lifetime guarantee against breakage on the rocker body. Crower Enduro arms are 17-4PH stainless with 1025 heat-treating, oversized needle bearings and alloy steel tip rollers, made in the USA. |
| Aluminum | Comp Cams Ultra-Gold ARC arms are CNC-machined aluminum with a spring oiler channel through the body, spiral-lock trunnion clips and a lifetime warranty, rated for use with up to 700 lbs of open spring pressure. The Tru-Ratio Endurance Series uses 7000 series aerospace-grade aluminum bodies and handles .750" lift and 750 lbs of max open spring pressure. |
| Weight and profile | Tru-Ratio Endurance Series arms average 28 grams lighter than the Race Series arms and sit lower, with shorter poly locks, for better fitment under most stock valve covers. |
3. Spring Clearance Is A Fitment Spec
A big dual spring and a rocker body occupy the same airspace. Check this before you order, not after the heads are on.
| Published clearance | Crower Enduro arms clear 1.560" diameter springs. Comp Ultra-Gold ARC arms clear up to 1.650" OD springs. Butler Stainless Pro Series arms are designed to clear large diameter springs. |
| Open pressure limit | the Tru-Ratio Endurance Series is rated to 750 lbs max open spring pressure and .750" lift; Comp Ultra-Gold is rated to 700 lbs open. If your spring package exceeds the rocker's rating, you are shopping for the wrong rocker or the wrong spring. |
| Valve cover clearance | tall rockers and stock stamped covers do not always coexist. The lower-profile Endurance Series arms and their shorter poly locks exist specifically to help here. |
4. Fitment Notes Worth Reading Twice
| Stud size | these are 7/16 stud-mount rockers. Butler Stainless Pro Series arms are listed for Pontiac 287-455 and 4.3L V8, 1958-81, on 7/16 studs; Comp Ultra-Gold is listed for Pontiac V8 265-455 with 7/16 studs. A head still wearing smaller factory studs needs a stud conversion first. |
| Guide plates required | the Butler Stainless Pro Series sets call for guide plates. Stud-mounted roller rockers rely on the guide plate to keep the pushrod on the cup. |
| Edelbrock round port | the Tru-Ratio Endurance Series is not recommended for Edelbrock round port heads, and some slight slotting of the pushrod hole toward the intake side may be required. |
| Locks in the box | Tru-Ratio Endurance and Scorpion Endurance sets include poly locks, Crower Enduro sets include sure-locks, and Butler Stainless Pro Series sets include RockerLocs. |
5. What Else Changes When You Fit Them
A rocker swap is rarely a bolt-on by itself.
| Pushrod length | changing ratio or rocker body moves the contact pattern on the valve tip. Check length with an adjustable checker and order the pushrods to the number you measure. |
| Retainer-to-seal and coil bind | more ratio means more lift, so re-check coil bind and retainer-to-seal clearance against the spring you are running. |
| Studs and guide plates | plan on 7/16 studs, matching guide plates and the correct poly locks as one package rather than three separate afterthoughts. |
Tell us the cam, the springs and the cylinder head you are running and we will point you at the ratio and body style that clears everything, instead of selling you a rocker that has to come back off.
Not sure what your Pontiac needs?
Call our tech team at 866-762-7527. Tell us your engine, heads, car, and power goal, and we will put the parts together as one combination that works.