Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
![Cast Steel Roller Tip Rocker Arms for Big Block Chevy [1.7 Ratio for 7/16 in. Studs]](https://www.jegs.com/images/mini_750/500/555/555-20188.jpg)
Vehicle Info NeededJEGSPART NUMBER: 555-20188
Cast Steel Roller Tip Rocker Arms for Big Block Chevy [1.7 Ratio for 7/16 in. Studs]
$18499$203.99You Save$19.00
More than 10 available
Ships on Nov 02, 2026
Lowest Price GuaranteeChevy
Cast Steel Roller Tip Rocker ArmsBig Block Chevy 396-454 1.7 Ratio for 7/16 in. Studs Up To 0.550 in. Valve Lift Includes:
- (16) Rocker Arms
- (16) Pivot Balls
- (16) Polylock Nuts with 5/8 in. Hex Head
JEGS 555-20188 Cast Steel Roller Tip Rocker Arms Features:
- Cast 4340 alloy steel body for strength and durability
- Roller tip prevents valve stem and guide wear
- Long slot allows up to 0.550 in. valve lift
- Heat-treated grooved rocker pivot balls to promote oiling & prevent galling
- Polylock nuts for precise valve adjustment
- Rated up to 350 lbs. spring pressure
- Rockers reduce friction leading to an additional 10 to 15 horsepower
Includes:
- (16) 1.7 Ratio roller tip rockers for 7/16 in. studs
- (16) Rocker pivot balls
- (16) 7/16 in.-20 thread polylock nuts with 3/16 in. allen set screws & 5/8 in. hex head
- Studs not included
Heat-Treated Steel Arms & Precision Machined Roller Tips
For the hardest working part of your valvetrain, use JEGS Cast Steel Roller Tip Rocker Arms. These chromoly steel long-slot rockers will give you a long service life and allow for less deflection and valve guide scrubbing. Each rocker features a precision-ground roller plus includes a nut and polylock.
Part TypeRocker Arm
Product LineJEGS Cast Steel Roller Tip Rocker Arms
BrandJEGS
Package Height2.2
Package Width9.6
Package Length16.7
Weight6.8 PG
Part CategoryPerformance Parts
Rocker Arm Ratio1.72
Shims IncludedNo
Maximum Spring Diameter1.5 in (38.1 mm)
Stud Size 7/16 in.
ColorNatural
Rocker Arm Nut StyleSelf-locking
QuantitySold as a set of 16
MaterialSteel
Rocker Arm Mounting StyleStud
Engine Make/SizeChevy Big Block (396-454)
Self-AligningNo
Rocker Arm StyleRoller tip
OffsetNo
Rocker Arm Body StyleStandard
Part FitmentSemi Universal
Slot Width0.6 in (15.2 mm)
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Lash Adjusting Wrench Set [5/8 in. Wrench, 3/16 in. and 7/32 in. T-Handles]](https://www.jegs.com/images/mini_200/700/778/778-66781.jpg)
PROFORM
Valve Lash Adjusting Wrench Set [5/8 in. Wrench, 3/16 in. and 7/32 in. T-Handles]
Part Number : 778-66781
$3199
![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)
JEGS
7/16 in. Stud Girdle Kit Fits Big Block Chevy 396-454 ci
Part Number : 555-20518
$23999$263.99
You Save$24.00
JEGS
Rocker Arm Studs for Big Block Chevy w/7/16 in.-20 Top Thread and 7/16 in.-14 Bottom Thread
Part Number : 555-20582
$3499$38.99
You Save$4.00
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
![Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]](https://www.jegs.com/images/mini_200/500/555/555-28035.jpg)
JEGS
Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]
Part Number : 555-28035
$799$8.99
You Save$1.00
JEGS
Polished Finned Valve Covers for 1965-1995 Big Block Chevy
Part Number : 555-501006
$23599$248.99
You Save$13.00
![Valve Cover T-Bar Wing Nuts [Chrome]](https://www.jegs.com/images/mini_200/500/555/555-50145.jpg)
![Fender Cover with Pocket [23 in. W x 31 1/2 in. L]](https://www.jegs.com/images/mini_200/500/555/555-65010.jpg)
JEGS
Fender Cover with Pocket [23 in. W x 31 1/2 in. L]
Part Number : 555-65010
$1399$16.99
You Save$3.00
![Penetrating Oil [11 oz. Aerosol Can]](https://www.jegs.com/images/mini_200/600/639/639-11043.jpg)
![Brake and Parts Cleaner [14 oz. Aerosol Can]](https://www.jegs.com/images/mini_200/500/555/555-72312.jpg)
PROFORM
Part Number : 778-66781
$3199
ITEM YOU MAY ALSO CONSIDER
COMP CAMS
Magnum Roller Rocker Arms Chevy Big Block 396-454/Ford Boss 302, 351C-400M, 429-460
Part Number : 249-1411-16
$23895
COMP CAMS
Part Number : 249-1411-16
$23895
Some parts are not legal for use in California or other states with similar laws / regulations
