COMP Cams 12-857-9 Oval Track 255/259 Solid Roller Cam for Chevrolet Small Block
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1/4-1/2 mile tacky. 355-377 Late Model with 4 BBL, big heads.
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
| Camshaft Series | Oval Track Xtreme TK |
| Usage | Strip |
| Cam Type | Solid Roller |
| Grind Number | 283TKR-6 |
| Basic Operating RPM Range | 3500-7,500 R3 |
| Intake Duration at .050 Inch Lift | 255 DD |
| Exhaust Duration at .050 inch Lift | 259 DD |
| Intake Valve Lift | 0.645 IN |
| Exhaust Valve Lift | 0.645 IN |
| Lifters Included | No |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | No |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Billet Steel |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Lifter Type | Solid Roller |
| Advertised Intake Duration | 283 DD |
| Advertised Exhaust Duration | 287 DD |
| Lobe Separation | 106 DD |
| Grind Number | 283TKR-6 |
β οΈ 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
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
Shipping Information
Free shipping is available for eligible orders.
Shipping: For USA - Up to 50lbs.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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