Dog Bone



ROLLER LIFTERS

Jesel Dog Bone Lifters.png

Built to go the distance

Dog Bone Roller Lifters get their name from the O.E. style dog bone shape alignment plates that are bolted to the cylinder block for cam/roller alignment. Jesel’s Dog Bone Roller Lifters are lighter than traditional tie bar styles of lifters and can be easily installed in the home workshop using Jesel’s Dog Bone Installation Fixture. These roller lifters are ideal for most forms of racing, available in lifter diameters of .842”, .875”, .905”, and .937”. The list of available roller diameters can be found in the chart at the bottom of this page. Standard Jesel features include full internal oil circuits, hard-coated steel bodies, and aluminum pistons with hardened-steel (centered and offset) pushrod seats.
 

Standard Features

  • Offset and centered pushrod seat locations

  • No special bushings needed

  • Installation fixture available for preparing block

  • Hardened steel pushrod seat

  • DLC coated tool steel body

  • Oil circuit lubes roller, bearings, pushrod and the upper valvetrain

LS-1 / LS-7 Retainer Kit

For LS-1 and LS-7 applications, Jesel recommends the use of our Dog Bone Retainer kit. A direct replacement for the OEM plastic retainer, this machined retainer securely guides the lifter and prevents premature lifter bore wear.

Specifications

Lifter Diameter

.842
.875
.905
.905
.937
.937

Roller Diameter 

.760
.760
.785
.820
.785
.850

Needle Length

.405
.450
.500
.500
.500
.500

Weight *Chevy BB

84g
89g
96g
98g
100g
104g

 

Offsets

Jesel Dogbone Center Offset.png

Center

Jesel Dogbone Offset.png

Offset

 

Oil flow should never be restricted to any Jesel Precision Roller Lifter.


Our Roller Lifter Story

Roller lifters had been around for years, being used in various applications such as radial aircraft engines, but when a few progressive engine builders started adapting them to race engines, horsepower and rpm made a huge leap forward. Cam grinders began designing cam profiles with shorter durations and higher rates of lift than a traditional solid lifter could tolerate. The result was incredible power gains especially with the typical modified O.E. style cylinder heads of the day. As valvetrain loads escalated with more lift, rocker ratio and spring pressure, the roller lifter was overtaxed and suffered frequent failures.

Read More...