Description
Introducing the new BTR Shaft Rocker Kit – The Next Step in the Evolution of LS Rocker Arm Trunnion Kits
Performance-minded engine builders know there is an inherent issue with valve train deflection when using stock rocker arm mounting in Chevrolet Gen III-IV-cylinder heads. The new BTR shaft rocker system significantly reduces that deflection thereby improving performance and durability. This kit features technology typically only found in high-end shaft rocker systems. The shaft rocker system consists of a billet steel stand equipped with four shafts per cylinder head, fasteners and bearings. The shafts are made from genuine 52100 bearing steel. Each pair of rockers has five fasteners mounting them to the rocker stand compared to the traditional single bolt per rocker configuration. During the development of this system, both aluminum and steel stands were tested – steel reigned supreme. The new BTR shaft rocker kit is ready for assembly using your existing stock rockers. All of these benefits are available to you at the very reasonable price!
KIT FOR STOCK LS3 HEADS INCLUDES THE FOLLOWING:
| SKU | Description | Quantity |
| SRKR3-BASE | BTR LS3 SHAFT ROCKER SYSTEM – STAND | 2 |
| SRKR3Shaft | BTR LS3 SHAFT ROCKER SYSTEM – SHAFT | 8 |
| 39541 | BOLT FOR ROCKER STAND | 24 |
| SRKR_SHM047 | SHAFT ROCKER THRUST SHIM .047″ THICK | 34 |
| TK/BEARING-33 | BTR ROCKER ARM TRUNNION BEARING KIT OF 33 | 1 |
KIT FOR AFR/TFS LS3 HEADS INCLUDES THE FOLLOWING:
| SKU | Description | Quantity |
| SRKR3AT-BASE | BTR SHAFT ROCKER STAND FOR TFS/AFR LS3 | 2 |
| SRKR3AT_SHAFT | ROCKER SHAFT FOR AFR & TFS LS3 HEADS | 8 |
| 39541 | BOLT FOR ROCKER STAND | 24 |
| SRKR_SHM047 | SHAFT ROCKER THRUST SHIM .047″ THICK | 34 |
| TK/BEARING-33 | BTR ROCKER ARM TRUNNION BEARING KIT OF 33 | 1 |
KIT FOR FRANKENSTEIN M311 LS3 HEADS INCLUDES THE FOLLOWING:
| SKU | Description | Quantity |
| SRKRF311-BASE | BTR SHAFT ROCKER STAND FOR M311 HEADS | 2 |
| SRKR3F311-SHAFT | BTR ROCKER ARM SHAFT FOR M311 HEADS | 8 |
| 39541 | BOLT FOR ROCKER STAND | 24 |
| SRKR_SHM047 | SHAFT ROCKER THRUST SHIM .047″ THICK | 34 |
| TK/BEARING-33 | BTR ROCKER ARM TRUNNION BEARING KIT OF 33 | 1 |
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