



⚡ Unlock LS3 Beast Mode with Precision Power!
The RHS 54530-05HCS Pro Action LS3 Cylinder Head offers a pre-assembled, high-performance upgrade featuring .660" valve lift dual springs, premium bronze/manganese valve guides, and RHS Clean Cast Technology for superior airflow and durability—all designed to fit factory OE architecture for seamless installation and maximum power gains.


| Manufacturer | RHS |
| Brand | Comp Cams |
| Model | Pro Action Pre-Assembled LS3 Cylinder Head w/ .660" Lift Dual Springs |
| Item Weight | 29.8 pounds |
| Package Dimensions | 25.35 x 10.31 x 7.56 inches |
| Item model number | 54530-05HCS |
| Exterior | Machined |
| Manufacturer Part Number | 54530-05HCS |
| OEM Part Number | 12675871 |
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