COMP Cams Camshaft CS 307-R6
COMP Cams Camshaft CS 307-R6
A$1,224.39
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Description
DR 278/284 SRlr SBC
Drag Race 278/284 Solid Roller Cam for Chevrolet Small Block. 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
Latest design for 350 with race heads, 5500+ stall.
Application Summary
Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.
Part Type
Engine Camshaft
Product Overview
Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.
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: | 317 |
| Advertised Intake Duration: | 307 |
| Amazon ASIN: | B001G7EY62 |
| Assembly Lubricant Included: | No |
| Basic Operating RPM Range: | 4,500-7800 |
| 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 278/284 Solid Roller Cam for Chevrolet Small Block |
| Engine Family: | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Exhaust Duration @ .050 in.: | 284 |
| Exhaust Duration at .050 inch Lift: | 284 |
| Exhaust Duration: | 317 |
| Exhaust Valve Lift(in): | 0.66 |
| Exhaust Valve Lift: | 0.66 |
| Grind Number: | 307-R6 |
| Intake Duration @ .050 in.: | 278 |
| Intake Duration at .050 Inch Lift: | 278 |
| Intake Duration: | 307 |
| Intake Valve Lift(in): | 0.684 |
| Intake Valve Lift: | 0.684 |
| Lifter Type: | Solid Roller |
| Lifters Included: | No |
| Part Number: | cca12-865-9 |
| RPM Range: | 4000-13000 |
| Title: | Drag Race 278/284 Solid Roller Cam for Chevrolet Small Block |
| 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 | cca12-865-9 |
| SFX Item ID | 4118877 |
| Accounting SKU | cca-12-865-9 |
| Manufacturer SKU | 12-865-9 |
| Manufacturer UPC | 036584117322 |
| Alternative References | 12-865-9, CCA-12-865-9 |
Camshaft; Drag Race; Camshaft; Mech. Roller; 4500-7800rpm; Adv. Dur. 307 Int./317 Exh.; Valve Lift .684 Int./.
COMP Cams specialty camshafts are available in many applications and camshaft types. No matter what setup you're running--whether you race, cruise, or pull--COMP Cams has the cams for you.
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | 12-865-9 |
| Part Type | Camshafts |
| Product Line | COMP Cams Specialty Camshafts |
| UPC | 036584117322 |
| Cam Style | Solid roller, Retro-fit |
| Camshaft Use | Drag race |
| Basic Operating RPM Range | 4,500-8,000 |
| Intake Duration at 050 inch Lift | 278 |
| Exhaust Duration at 050 inch Lift | 284 |
| Duration at 050 inch Lift | 278 int./284 exh. |
| Advertised Intake Duration | 307 |
| Advertised Exhaust Duration | 317 |
| Advertised Duration | 307 int./317 exh. |
| Intake Valve Lift with Factory Rocker Arm Ratio | 0.684 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.660 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.684 int./0.660 exh. |
| Intake Valve Lash | 0.016 in. |
| Exhaust Valve Lash | 0.018 in. |
| Remanufactured | No |
| Computer-Controlled Compatible | No |
| Grind Number | 307-R6 |
| Valve Springs Required | Yes |
| Quantity | Sold individually. |
| Notes | Latest design for use with race heads, 5,500+ stall converter. |
Compatibility
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