COMP Cams Stage 2 Thumpr 227/237 Master Camshaft Kit GEN4 LS 4.8/5.3/6.0L
COMP Cams Stage 2 Thumpr 227/237 Master Camshaft Kit GEN4 LS 4.8/5.3/6.0L
Description
Stg2 Tmpr MK 4.8-6.0
Additional Information
The Stage 2 Thumpr Master Cam Kit for LS GEN IV 5.3-6.0L provides an awesome idle lope in modified 5.3L & 6.0L trucks. Includes lifters, timing set, pushrods, dual springs, retainers, locks, spring seats and valve seals.
Application Summary
Chevrolet: Express Pasajeros 09 - 12 6 L Engine, Chevrolet: Avalanche 09 - 09 6 L Engine, Chevrolet: Express Cargo 09 - 09 5.3 L Engine, GMC: Sierra 1500 Classic 07 - 07 5.3 L Engine, Chevrolet: Express Pasajeros 09 - 12 5.3 L Engine, GMC: Sierra 3500 HD 09 - 12 6 L Engine, Chevrolet: Silverado 2500 07 - 12 4.8 L Engine, Chevrolet: Suburban 1500 07 - 12 5.3 L Engine, GMC: Yukon 07 - 12 5.3 L Engine, Chevrolet: Express 3500 09 - 12 6 L Engine, Hummer: H3 08 - 10 5.3 L Engine, Chevrolet: Trailblazer 07 - 08 5.3 L Engine, Chevrolet: Silverado 1500 07 - 12 5.3 L Engine, Chevrolet: Express 2500 09 - 12 6 L Engine, Chevrolet: Avalanche 07 - 12 5.3 L Engine, Chevrolet: Silverado 1500 Classic 07 - 07 5.3 L Engine, GMC: Sierra 2500 HD 09 - 12 6 L Engine, Chevrolet: Express Cargo 10 - 12 6 L Engine, Chevrolet: Silverado 2500 07 - 12 5.3 L Engine, GMC: Yukon XL 2500 09 - 12 6 L Engine, GMC: Sierra 1500 07 - 12 5.3 L Engine, GMC: Savana 3500 09 - 12 6 L Engine, GMC: Canyon 09 - 12 5.3 L Engine, Chevrolet: Tahoe 09 - 12 6 L Engine, GMC: Savana 3500 07 - 12 4.8 L Engine, Saab: 9-7x 09 - 09 6 L Engine, GMC: Yukon 09 - 12 6 L Engine, Saab: 9-7x 07 - 09 5.3 L Engine, GMC: Sierra 1500 07 - 12 4.8 L Engine, Chevrolet: Silverado 1500 07 - 12 4.8 L Engine, Chevrolet: Express 3500 07 - 12 4.8 L Engine, Chevrolet: Silverado 3500 09 - 12 6 L Engine, GMC: Yukon XL 1500 07 - 12 5.3 L Engine, GMC: Envoy 07 - 09 5.3 L Engine, Chevrolet: Silverado 1500 09 - 12 6 L Engine, Chevrolet: Tahoe 07 - 12 5.3 L Engine, Cadillac: Escalade 09 - 12 6 L Engine, GMC: Sierra 1500 09 - 12 6 L Engine, GMC: Sierra 1500 Classic 07 - 07 4.8 L Engine, Chevrolet: Silverado 1500 Classic 07 - 07 4.8 L Engine, Chevrolet: Cheyenne 07 - 12 5.3 L Engine, GMC: Yukon XL 1500 09 - 09 6 L Engine, GMC: Savana 2500 07 - 12 4.8 L Engine, Hummer: H3T 09 - 10 5.3 L Engine, Buick: Rainier 07 - 07 5.3 L Engine, GMC: Yukon 07 - 09 4.8 L Engine, Chevrolet: Colorado 09 - 12 5.3 L Engine, Chevrolet: Express 2500 07 - 12 4.8 L Engine, Ch
Part Type
Engine Camshaft Kit
Product Overview
Chevrolet: Express Pasajeros 09 - 12 6 L Engine, Chevrolet: Avalanche 09 - 09 6 L Engine, Chevrolet: Express Cargo 09 - 09 5.3 L Engine, GMC: Sierra 1500 Classic 07 - 07 5.3 L Engine, Chevrolet: Express Pasajeros 09 - 12 5.3 L Engine, GMC: Sierra 3500 HD 09 - 12 6 L Engine, Chevrolet: Silverado 2500 07 - 12 4.8 L Engine, Chevrolet: Suburban 1500 07 - 12 5.3 L Engine, GMC: Yukon 07 - 12 5.3 L Engine, Chevrolet: Express 3500 09 - 12 6 L Engine, Hummer: H3 08 - 10 5.3 L Engine, Chevrolet: Trailblazer 07 - 08 5.3 L Engine, Chevrolet: Silverado 1500 07 - 12 5.3 L Engine, Chevrolet: Express 2500 09 - 12 6 L Engine, Chevrolet: Avalanche 07 - 12 5.3 L Engine, Chevrolet: Silverado 1500 Classic 07 - 07 5.3 L Engine, GMC: Sierra 2500 HD 09 - 12 6 L Engine, Chevrolet: Express Cargo 10 - 12 6 L Engine, Chevrolet: Silverado 2500 07 - 12 5.3 L Engine, GMC: Yukon XL 2500 09 - 12 6 L Engine, GMC: Sierra 1500 07 - 12 5.3 L Engine, GMC: Savana 3500 09 - 12 6 L Engine, GMC: Canyon 09 - 12 5.3 L Engine, Chevrolet: Tahoe 09 - 12 6 L Engine, GMC: Savana 3500 07 - 12 4.8 L Engine, Saab: 9-7x 09 - 09 6 L Engine, GMC: Yukon 09 - 12 6 L Engine, Saab: 9-7x 07 - 09 5.3 L Engine, GMC: Sierra 1500 07 - 12 4.8 L Engine, Chevrolet: Silverado 1500 07 - 12 4.8 L Engine, Chevrolet: Express 3500 07 - 12 4.8 L Engine, Chevrolet: Silverado 3500 09 - 12 6 L Engine, GMC: Yukon XL 1500 07 - 12 5.3 L Engine, GMC: Envoy 07 - 09 5.3 L Engine, Chevrolet: Silverado 1500 09 - 12 6 L Engine, Chevrolet: Tahoe 07 - 12 5.3 L Engine, Cadillac: Escalade 09 - 12 6 L Engine, GMC: Sierra 1500 09 - 12 6 L Engine, GMC: Sierra 1500 Classic 07 - 07 4.8 L Engine, Chevrolet: Silverado 1500 Classic 07 - 07 4.8 L Engine, Chevrolet: Cheyenne 07 - 12 5.3 L Engine, GMC: Yukon XL 1500 09 - 09 6 L Engine, GMC: Savana 2500 07 - 12 4.8 L Engine, Hummer: H3T 09 - 10 5.3 L Engine, Buick: Rainier 07 - 07 5.3 L Engine, GMC: Yukon 07 - 09 4.8 L Engine, Chevrolet: Colorado 09 - 12 5.3 L Engine, Chevrolet: Express 2500 07 - 12 4.8 L Engine, Ch
Features
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Advertised Exhaust Duration: | 299 |
| Advertised Intake Duration: | 282 |
| Amazon ASIN: | B07MQB7F54 |
| Assembly Lubricant Included: | No |
| Basic Operating RPM Range: | 1,800-6,600 |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles?: | No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: | Yes, but must be a race/competition only vehicle. |
| Cam Type: | Hydraulic Roller |
| Camshaft Gear Attachment: | 3-Bolt |
| Camshaft Material: | Billet Steel |
| Camshaft Series: | Thumpr NSR (No Springs Required) |
| Description: | Stage 2 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks |
| Engine Family: | GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015) |
| Estimated Horsepower Gain with Kit: | 89 |
| Exhaust Duration at .050 inch Lift: | 237 |
| Exhaust Valve Lift: | 0.612 |
| Gaskets Included: | No |
| Grind Number: | 282LTH13 |
| Intake Duration at .050 Inch Lift: | 227 |
| Intake Valve Lift: | 0.614 |
| Kit Type: | MK-Kit |
| Lifter Type: | Hydraulic Roller |
| Lifters Included: | Yes |
| Locks Included: | Yes |
| Part Number: | ccaMK54-703-11 |
| Pushrods Included: | Yes |
| Recommended Cam Install Kit: | 5621 |
| Recommended Max-Lift BSR Shaft Rocker System: | 1981-16 |
| Recommended Upgraded Stock Rocker Arms: | 1477-16 |
| Retainers Included: | Yes |
| Stage: | 2 |
| Timing Set Included: | Yes |
| Title: | Stage 2 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks |
| Usage: | Street / Performance |
| Valve Seals Included: | Yes |
| Valve Spring Seats Included: | Yes |
| Valve Springs Included: | Yes |
Product Downloads
Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Comp Cams, Comp Cams (edelbrock) |
| StreetFX SKU | ccaMK54-703-11 |
| SFX Item ID | 4124798 |
| Accounting SKU | cca-MK54-703-11 |
| Manufacturer SKU | MK54-703-11 |
| Manufacturer UPC | 036584387657 |
| Alternative References | CCA-MK54-703-11, CPCMK54-703-11, MK54-703-11 |
Camshaft Kits, Thumpr LS Master Camshaft Packages, Hydraulic Roller, Advertised Duration 282/299, Lift 0.614/0.612, Chevy, GMC, 4.8L, 5.3L, 6.0L, Kit
COMP Cams Thumpr LS Master camshaft packages come as a complete valvetrain parts package that is matched for specific LS applications and desired performance. COMP Cams engineers have spent countless hours testing and creating valve train component combinations that are perfectly matched for maximum horsepower and dependability, as well as creating that wildly popular Thumpr sound in GM LS applications. These packages can add anywhere from 60 to 110 hp (depending on the application).
COMP Cams Thumpr LS Master camshaft packages include:
• Thumpr LS camshaft
• Lifters
• Timing gear set
• Pushrods
• Valve springs
• Retainers
• Valve locks
• Spring seats
• Valve seats
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | MK54-703-11 |
| Part Type | Camshaft Kits |
| Product Line | COMP Cams Thumpr LS Master Camshaft Packages |
| UPC | 00036584387657 |
| Cam Style | Hydraulic roller, OE roller |
| Basic Operating RPM Range | 1,800-6,500 |
| Camshaft Use | Street/Strip |
| Camshaft Manufacturers Description | Thumpr lobe design for awesome idle lope in modified 5.3L & 6.0L truck engines. Required high lift valve springs ensure maximum power gains. AFM & VVT delete. |
| Intake Duration at 050 inch Lift | 227 |
| Exhaust Duration at 050 inch Lift | 237 |
| Duration at 050 inch Lift | 227 int./237 exh. |
| Advertised Intake Duration | 282 |
| Advertised Exhaust Duration | 299 |
| Advertised Duration | 282 int./299 exh. |
| Intake Valve Lift with Factory Rocker Arm Ratio | 0.614 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.612 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.614 int./0.612 exh. |
| Camshaft Gear Attachment | 3-bolt |
| Computer-Controlled Compatible | Yes |
| Lifters Included | Yes |
| Lifter Style | Hydraulic roller |
| Valve Springs Included | Yes |
| Outside Diameter of Outer Spring (in.) | 1.320 in. |
| Retainers Included | Yes |
| Locks Included | Yes |
| Valve Stem Seals Included | Yes |
| Timing Chain and Gears Included | Yes |
| Timing Chain Style | Double roller |
| Assembly Lubricant Included | No |
| Pushrods Included | Yes |
| Rocker Arms Included | No |
| Gaskets Included | No |
| Valve Springs Required | No |
| Quantity | Sold as a kit. |
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