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COMP Cams 12-771-8 Xtreme Energy 242/248 Solid Roller Cam for Chevrolet Small Block
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
Best in street machines with 2800+ stall, 10:1+ compression with 3.73-3.90 rear gears.
SBC - 1955-57 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.
Specifications
| Exhaust Duration at .050 inch Lift | 248 DD |
| Advertised Intake Duration | 280 DD |
| Advertised Exhaust Duration | 286 DD |
| Lobe Separation | 110 DD |
| Intake Valve Lift | 0.57 IN |
| Exhaust Valve Lift | 0.576 IN |
| Intake Duration at .050 Inch Lift | 242 DD |
| Basic Operating RPM Range | 500-6,500 R3 |
| Grind Number | XR280R |
| Cam Type | Solid Roller |
| Usage | Street/Performance |
| Camshaft Series | Xtreme Energy |
| Lifters Included | No |
| Lifter Type | Solid Roller |
| SK-Kit Upgrade | SK12-771-8 |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | No |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Austempered Ductile Iron |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Cam and Lifter Kit Upgrade | CL12-771-8 |
| K-Kit Upgrade | K12-771-8 |
| Grind Number | XR280R |
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
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Shipping: Free to the USA.
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