54-471-11 LSR Rectangular Port 239/255 Hydraulic Roller Cam for GM LS GEN III/IV
Description
Broad top end power range for high RPM, race only LS engines with aftermarket rectangular port heads and higher compression.
Specifications
| SKU | 54-471-11 |
| Barcode # | 036584195337 |
| Brand | COMP CAMS |
| Intake Valve Lift | 0.624 |
| Camshaft Gear Attachment | 3-Bolt |
| Basic Operating Rpm Range | 2,400-7,200 |
| Lobe Separation | 114 |
| Cam Type | Hydraulic Roller |
| Lifter Type | Hydraulic Roller |
| Valve Springs Required | Yes |
| Grind Number | 289LRR HR14 |
| Intake Duration At .050 Inch Lift | 239 |
| Advertised Intake Duration | 289 |
| Exhaust Valve Lift | 0.624 |
| Camshaft Material | Billet Steel |
| Lifters Included | No |
| Camshaft Series | LSR Rectangular Port All Out Power |
| Exhaust Duration At .050 Inch Lift | 255 |
| Advertised Exhaust Duration | 305 |
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