COMP Cams GM LS3/LS4 HV Series Camshaft
COMP Cams GM LS3/LS4 HV Series Camshaft
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Description
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Hyd Roller Camshaft
This COMP Cams® HV cam is designed for GM cathedral port 4.8L/5.3L/6.0L powered vehicles. It provides amazing drivability and throttle response while also requiring minimal tuning. Torque is increased across the entire operating range while still producing +79 horsepower at peak. Get the most out of your daily driver truck, SUV or 4x4 without sacrificing street manners. The HV cam will provide a deep rumble with a mild, yet noticeable lope. At .575" lift, this cam is designed to take advantage of the inexpensive 26906 valve spring upgrade. Also compatible with stock converters.
Additional Information
This COMP Cams® HV NSR cam is designed for GMcathedral port 4.8L/5.3L/6.0L powered vehicles. Itprovides amazing drivability and throttle responsewhile also requiring minimal tuning.
Part Type
Engine Camshaft
Product Overview
This COMP Cams® HV cam is designed for GM cathedral port 4.8L/5.3L/6.0L powered vehicles. It provides amazing drivability and throttle response while also requiring minimal tuning. Torque is increased across the entire operating range while still producing +79 horsepower at peak. Get the most out of your daily driver truck, SUV or 4x4 without sacrificing street manners. The HV cam will provide a deep rumble with a mild, yet noticeable lope. At .575" lift, this cam is designed to take advantage of the inexpensive 26906 valve spring upgrade. Also compatible with stock converters.
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:12:35
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
| Advance: | 5 |
| Advertised Exhaust Duration: | 278 |
| Advertised Intake Duration: | 271 |
| Basic Operating RPM Range: | 2500 - 6300 |
| Cam Type: | Hydraulic Roller |
| Camshaft Intake Centerline: | 106 |
| Camshaft Series: | HV |
| Computer Controlled Compatible: | Yes |
| Description: | COMP Cams GM LS3/LS4 HV Series Camshaft |
| Direct Injection: | No |
| Engine Platform: | GM LS GEN III/IV |
| Exhaust Close ATDC: | -3 |
| Exhaust Duration at .050 inch Lift: | 226 |
| Exhaust Lobe Lift: | 0.335 |
| Exhaust Open BBDC: | 49 |
| Exhaust Valve Lash: | Hyd |
| Exhaust Valve Lift with Factory Rocker Arm Ratio: | 0.57 |
| Exhaust Valve Lift: | 0.57 |
| Factory Rocker Ratio: | 1.7 |
| Fuel Management Strategy Compatible: | No |
| Grind Number: | LS271HV11 |
| Intake Close ABDC: | 35 |
| Intake Duration at .050 Inch Lift: | 218 |
| Intake Lobe Lift: | 0.338 |
| Intake Open BTDC: | 3 |
| Intake Valve Lash: | Hyd |
| Intake Valve Lift with Factory Rocker Arm Ratio: | 0.575 |
| Intake Valve Lift: | 0.575 |
| Lifter Type: | Hydraulic Roller |
| Part Number: | cca54-273-11 |
| Phaser Requirement: | None |
| Usage: | Street |
| VVT Compatible: | No |
| Valve Springs Required: | Yes |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Comp Cams, Comp Cams (edelbrock) |
| StreetFX SKU | cca54-273-11 |
| SFX Item ID | 4124859 |
| Accounting SKU | cca-54-273-11 |
| Manufacturer SKU | 54-273-11 |
| Manufacturer UPC | 00036584426615 |
| Alternative References | 54-273-11, CCA-54-273-11, CPC54-273-11 |
Camshaft, HV Cam 218/226 .575/.570 Hyd Roller for GEN III/IV 4.8L, 5.3L, 6.0L, Each
COMP Cams offers HV camshafts for a variety of objectives—such as drivability, towing, greater throttle response, moving peak torque to higher RPM in smaller displacement engines, and more. The cams deliver awesome performance gains (up to +94 hp), as well as increased torque across much of the operating range. They provide a deep rumble and mild, yet noticeable lope. Depending on your vehicle, HV cams are a great choice for engine swaps in full-size cruisers and daily drivers, including heavier vehicles (trucks/SUVs). Order the model recommended for your year/make and engine application.
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | 54-273-11 |
| Part Type | Camshafts |
| Product Line | COMP Cams HV Camshafts |
| UPC | 36584426615 |
| Cam Style | Hydraulic roller, OE roller |
| Camshaft Use | Street |
| Basic Operating RPM Range | 2,500-6,300 |
| Intake Duration at 050 inch Lift | 218 |
| Exhaust Duration at 050 inch Lift | 226 |
| Duration at 050 inch Lift | 218 int./226 exh. |
| Advertised Intake Duration | 271 |
| Advertised Exhaust Duration | 278 |
| Advertised Duration | 271 int./278 exh. |
| Intake Valve Lift with Factory Rocker Arm Ratio | 0.575 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.570 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.575 int./0.570 exh. |
| Camshaft Gear Attachment | 3-bolt |
| Remanufactured | No |
| Computer-Controlled Compatible | Yes |
| Grind Number | LS271HV11 |
| Valve Springs Required | Yes |
| Quantity | Sold individually. |
Brochures
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