Description
Camshaft - Drag Race - Mechanical Roller - Lift 0.748 / 0.748 in - Duration 321 / 336 - 112 LSA - 5000 / 7500 RPM - Big Block Chevy - Each
DR 284/296 SRlrBBC
BBC - 1965-66 396 c.i.d. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us at 1-800-999-0853 or contact us, and we will assist you with placing an order. WARNING: Camshaft Optimized for use with a Melanized or Nitrided distributor Gear. Not compatible with cast or Steel Gears without similar surface treatments. Failure to utilize the proper distributor Gear will void all warranties and/or return policies.
Additional Information
Super Comp. 5000+ stall, 500+c.i.
Application Summary
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
Part Type
Engine Camshaft
Product Overview
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
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: | 336 |
| Advertised Intake Duration: | 321 |
| Amazon ASIN: | B001O07BAC |
| Assembly Lubricant Included: | No |
| Basic Operating RPM Range: | 5,000-7,500 |
| 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: | Solid Roller |
| Camshaft Gear Attachment: | 3-Bolt |
| Camshaft Material: | Billet Steel |
| Camshaft Series: | Drag Race |
| Description: | Drag Race 284/296 Solid Roller Cam for Chevrolet Big Block 396-454 |
| Engine Family: | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Exhaust Duration @ .050 in.: | 298 |
| Exhaust Duration at .050 inch Lift: | 296 |
| Exhaust Duration: | 336-5 |
| Exhaust Valve Lift(in): | 0.748 |
| Exhaust Valve Lift: | 0.748 |
| Grind Number: | 321JR-12 |
| Intake Duration @ .050 in.: | 286 |
| Intake Duration at .050 Inch Lift: | 284 |
| Intake Duration: | 321-4 |
| Intake Valve Lift(in): | 0.748 |
| Intake Valve Lift: | 0.748 |
| Lifter Type: | Solid Roller |
| Lifters Included: | No |
| Part Number: | cca11-740-9 |
| RPM Range: | 5000-13000 |
| Title: | Drag Race 284/296 Solid Roller Cam for Chevrolet Big Block 396-454 |
| Usage: | Strip |
| Valve Springs Required: | Yes |
Product Downloads
| # | Document Type | Download |
|---|---|---|
| 1. | Catalog |
|
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 | cca11-740-9 |
| SFX Item ID | 4118534 |
| Accounting SKU | cca-11-740-9 |
| Manufacturer SKU | 11-740-9 |
| Manufacturer UPC | 036584030300 |
| Alternative References | 11-740-9, CCA-11-740-9, COM11-740-9 |
Camshaft, Mechanical Roller Tappet, Advertised Duration 321/326, Lift .748/.748, Chevy, Big Block, Each
COMP Cams drag race camshafts are offered in four styles: hydraulic flat tappet, hydraulic roller tappet, mechanical roller tappet, and mechanical flat tappet. These cams are ideal for the performance demands of the dragstrip, as well as street, strip, Circle Track, and other applications. Over a hundred models are available; choose the camshaft designed for your vehicle and engine family.
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | 11-740-9 |
| Part Type | Camshafts |
| Product Line | COMP Cams Drag Race Camshafts |
| UPC | 036584030300 |
| Cam Style | Solid roller, Retro-fit |
| Camshaft Use | Drag race |
| Basic Operating RPM Range | 5,000-7,500 |
| Intake Duration at 050 inch Lift | 286 |
| Exhaust Duration at 050 inch Lift | 298 |
| Duration at 050 inch Lift | 286 int./298 exh. |
| Advertised Intake Duration | 321 |
| Advertised Exhaust Duration | 336 |
| Advertised Duration | 321 int./336 exh. |
| Intake Valve Lift with Factory Rocker Arm Ratio | 0.748 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.748 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.748 int./0.748 exh. |
| Intake Valve Lash | 0.028 in. |
| Exhaust Valve Lash | 0.030 in. |
| Remanufactured | No |
| Computer-Controlled Compatible | No |
| Grind Number | CB 321JR-12 |
| Valve Springs Required | Yes |
| Quantity | Sold individually. |
| Notes | Requires upgraded gear, thrust button, and wear plate. |
Compatibility
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