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COMP Cams 54-701-11 Stage 1 Thumpr Cam for GEN IV LS 4.8/5.3/6.0L Trucks
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
Perfect choice for strong idle lope and great power in 4.8 & 5.3L truck engines. No Springs Required (NSR) version of popular Thumpr lobe designs. AFM & VVT delete.
Stage 1 Thumpr 222/233 Hydraulic Roller Cam
Specifications
| Grind Number | 276LTH12 |
| Basic Operating RPM Range | 1,800-6,400 R3 |
| Intake Duration at .050 Inch Lift | 222 DD |
| Exhaust Duration at .050 inch Lift | 233 DD |
| Advertised Intake Duration | 276 DD |
| Advertised Exhaust Duration | 295 DD |
| Lobe Separation | 112 DD |
| Intake Valve Lift | 0.541 IN |
| Exhaust Valve Lift | 0.536 IN |
| Lifters Included | No |
| Valve Springs Required | No |
| Assembly Lubricant Included | No |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Billet Steel |
| Lifter Type | Hydraulic Roller |
| CK-Kit Upgrade | CK54-701-11 |
| Engine Family | GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015) |
| Stage | 1 |
| MK-Kit Upgrade | MK54-701-11 |
| Recommended Upgraded Stock Rocker Arms | 1477-16 |
| Recommended Max-Lift BSR Shaft Rocker System | 1981-16 |
| Recommended Cam Install Kit | 5621 |
| Grind Number | 276LTH12 |
| Camshaft Series | Thumpr NSR (No Springs Required) |
| Usage | Street / Performance |
| Cam Type | Hydraulic Roller |
Note: CK and MK camshaft kits are available for this camshaft. Add CK or MK to the beginning of this part number for a CK or MK Kit with appropriately matched valvetrain parts.
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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Shipping: Free to the USA.
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