Description
COMP Cams Cam & Lifter Kit CS XS274S-10
CL-KIT - Cam and Lifter Kit Includes: Camshaft, Lifters, Assembly Lube, Decals and Instructions.
Additional Information
Very strong mid-range torque and throttle response, 2200+ 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 and Lifter Kit
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.
| Additional Application Notes | |
|---|---|
| • In 1987, GM began using hydraulic roller camshafts in Chevrolet Small Block V8's. Before ordering this camshaft, verify that your engine has a flat tappet camshaft. If your engine features a roller camshaft, look at our "08-" camshafts or "07-" camshafts if equipped with an LT1/LT4. | |
| • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech Flat Tappet; 2000-6400rpm;Adv.Dur. 274 Int./280 Exh.;V.Lift .501 Int./.510 Exh.;Lobe 110 deg;Incl. Cams;Lifters; | |
| • From 1985-1998 Chevrolet introduced the factory roller Small Block into GM cars and trucks. Verify whether or not your vehicle came with a factory roller camshaft. If your vehicle was equipped with a roller camshaft, look to our camshafts and kits that start with "08-". | |
| • In 1987, GM began using hydraulic roller camshafts in Chevrolet Small Block V8's. Before ordering this camshaft, verify that your engine has a flat tappet camshaft. If your engine features a roller camshaft, look at our "08-" camshafts or "07-" camshafts if equipped with an LT1/LT4. From 1985-1998 Chevrolet introduced the factory roller Small Block into GM cars and trucks. Verify whether or not your vehicle came with a factory roller camshaft. If your vehicle was equipped with a roller camshaft, look to our camshafts and kits that start with "08-". | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
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: | 280 |
| Advertised Intake Duration: | 274 |
| Amazon ASIN: | B000P59HRM |
| Assembly Lubricant Included: | Yes |
| Basic Operating RPM Range: | 2,000-6,400 |
| 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 Flat Tappet |
| Camshaft Gear Attachment: | 3-Bolt |
| Camshaft Material: | Cast Iron |
| Camshaft Series: | Xtreme Energy |
| Description: | Xtreme Energy 236/242 Solid Flat Cam and Lifter Kit for Chevrolet Small Block |
| Engine Family: | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Exhaust Duration @ .050 in.: | 242 |
| Exhaust Duration at .050 inch Lift: | 242 |
| Exhaust Duration: | 280 |
| Exhaust Valve Lift(in): | 0.51 |
| Exhaust Valve Lift: | 0.51 |
| Gaskets Included: | No |
| Intake Duration @ .050 in.: | 236 |
| Intake Duration at .050 Inch Lift: | 236 |
| Intake Duration: | 274 |
| Intake Valve Lift(in): | 0.501 |
| Intake Valve Lift: | 0.501 |
| Kit Type: | CL-Kit - Cam and Lifter Kit |
| Lifter Type: | Solid Flat Tappet |
| Lifters Included: | Yes |
| Locks Included: | No |
| Part Number: | ccaCL12-677-4 |
| RPM Range: | 2000-9000 |
| Retainers Included: | No |
| Timing Chain and Gears Included: | No |
| Title: | Xtreme Energy 236/242 Solid Flat Cam and Lifter Kit for Chevrolet Small Block |
| Usage: | Street/Performance |
| Valve Springs Required: | Yes |
| Valve Stem Seals Included: | No |
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 | ccaCL12-677-4 |
| SFX Item ID | 4123083 |
| Accounting SKU | cca-CL12-677-4 |
| Manufacturer SKU | CL12-677-4 |
| Manufacturer UPC | 036584079248 |
| Alternative References | CCA-CL12-677-4, CL12-677-4 |
Cam and Lifters, Mechanical Flat Tappet, Advertised Duration 274/280, Lift .501/.510, Chevy, Small Block, Kit
COMP Cams Xtreme Energy cam and lifter kits are built to take advantage of the latest cam technology and provide maximum performance. Whether your use is off-roading, towing, or street performance, there are Xtreme Energy options available for you. By using an aggressive lobe profile, they provide better throttle response and more top-end horsepower than equivalent kits from other manufacturers, while delivering increased engine vacuum. Order the model designed for your vehicle and engine application.
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | CL12-677-4 |
| Part Type | Camshaft Kits |
| Product Line | COMP Cams Xtreme Energy Cam and Lifter Kits |
| UPC | 036584079248 |
| Cam Style | Solid flat tappet |
| Basic Operating RPM Range | 2,000-6,400 |
| Camshaft Use | Street/Strip |
| Intake Duration at 050 inch Lift | 236 |
| Exhaust Duration at 050 inch Lift | 242 |
| Duration at 050 inch Lift | 236 int./242 exh. |
| Advertised Intake Duration | 274 |
| Advertised Exhaust Duration | 280 |
| Advertised Duration | 274 int./280 exh. |
| Intake Valve Lift with Factory Rocker Arm Ratio | 0.501 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.510 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.501 int./0.510 exh. |
| Intake Valve Lash | 0.016 in. |
| Exhaust Valve Lash | 0.016 in. |
| Grind Number | CS XS274S-10 |
| Computer-Controlled Compatible | No |
| Lifters Included | Yes |
| Lifter Style | Mechanical flat tappet |
| Valve Springs Included | No |
| Retainers Included | No |
| Locks Included | No |
| Valve Stem Seals Included | No |
| Timing Chain and Gears Included | No |
| Assembly Lubricant Included | Yes |
| Pushrods Included | No |
| Rocker Arms Included | No |
| Gaskets Included | No |
| Valve Springs Required | Yes |
| Quantity | Sold as a kit. |
Compatibility
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