COMP Cams Nitrided Camshaft CB XS274 S
COMP Cams Nitrided Camshaft CB XS274 S
Description
XE NIT 236/242SFTBBC
Xtreme Energy NIT 236/242 Solid Flat Cam for Chevy Big Block 396-454 (Nitrided). Very strong mid-range torque and throttle response. 2500+ stall.
Additional Information
Very strong mid-range torque and throttle response, 2500+ stall. Nitrided.
Application Summary
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
Part Type
Engine Camshaft
Product Overview
*Xtreme Energy Camshafts*
⢠Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
⢠More vacuum allows an increase in duration for improved performance and assists power brakes
⢠Excellent performance in street carbureted applications
⢠Best performance with aftermarket intake manifolds, headers, lower gear ratios, etc.
| Additional Application Notes | |
|---|---|
| • w/ S Engine VIN; Hyd. Flat Tappet; 2000-6400rpm; Adv. Dur. 274 Int./280 Exh.; V. Lift .568 Int./.578 Exh.; Lobe Angle 110 deg.; | |
| • w/ S Engine VIN; | |
| • Hyd. Flat Tappet; 2000-6400rpm; Adv. Dur. 274 Int./280 Exh.; V. Lift .568 Int./.578 Exh.; Lobe Angle 110 deg.; | |
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
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Specifications
Product Details
| Advertised Exhaust Duration: | 280 |
| Advertised Intake Duration: | 274 |
| Amazon ASIN: | B002EE0DGQ |
| 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: | Nitrided Cast Iron |
| Camshaft Series: | Xtreme Energy |
| Description: | Xtreme Energy NIT 236/242 Solid Flat Cam for Chevrolet Big Block 396-454 |
| Engine Family: | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Exhaust Duration @ .050 in.: | 242 |
| Exhaust Duration at .050 inch Lift: | 242 |
| Exhaust Duration: | 280 |
| Exhaust Valve Lift(in): | 0.578 |
| Exhaust Valve Lift: | 0.578 |
| Grind Number: | XS274S |
| Intake Duration @ .050 in.: | 236 |
| Intake Duration at .050 Inch Lift: | 236 |
| Intake Duration: | 274 |
| Intake Valve Lift(in): | 0.568 |
| Intake Valve Lift: | 0.568 |
| Lifter Type: | Solid Flat Tappet |
| Lifters Included: | No |
| Part Number: | cca11-677-20 |
| RPM Range: | 2000-7000 |
| Title: | Xtreme Energy NIT 236/242 Solid Flat Cam for Chevrolet Big Block 396-454 |
| Usage: | Street/Strip |
| Valve Springs Required: | 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 | cca11-677-20 |
| SFX Item ID | 4118498 |
| Accounting SKU | cca-11-677-20 |
| Manufacturer SKU | 11-677-20 |
| Manufacturer UPC | 036584177876 |
| Alternative References | 11-677-20, CCA-11-677-20 |
Camshaft, Mechanical Flat Tappet, Advertised Duration 274/280, Lift .568/.578, Chevy, Big Block, Each
An excellent performing cam in street carbureted applications, just got more extreme! COMP Cams Xtreme Energy Pro-Plasma Nitrided camshafts give you the benefits of their best-selling cam with extreme durability. Pro-Plasma nitriding gives these cams increased hardness for improved initial and long-term wear characteristics. The race-proven process is the best way to increase the durability and lubricity of flat tappet camshafts. Don't be blinded by the bling of other shiny cams--choose COMP Cams Xtreme Energy Pro-Plasma nitrided camshafts.
| Product Attributes | |
|---|---|
| Brand | COMP Cams |
| Manufacturer's Part Number | 11-677-20 |
| Part Type | Camshafts |
| Product Line | COMP Cams Xtreme Energy Pro-Plasma Nitrided Camshafts |
| UPC | 036584177876 |
| Cam Style | Solid flat tappet |
| Camshaft Use | Street/Strip |
| Camshaft Manufacturers Description | Very strong mid-range torque and throttle response, 2500+ stall. |
| Basic Operating RPM Range | 2,000-6,400 |
| 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 | 0.568 in. |
| Exhaust Valve Lift with Factory Rocker Arm Ratio | 0.578 in. |
| Valve Lift with Factory Rocker Arm Ratio | 0.568 int./0.578 exh. |
| Camshaft Gear Attachment | 3-bolt |
| Intake Valve Lash | 0.016 in. |
| Exhaust Valve Lash | 0.016 in. |
| Remanufactured | No |
| Computer-Controlled Compatible | No |
| Grind Number | XS274S |
| Valve Springs Required | Yes |
| Quantity | Sold individually. |
Compatibility
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