View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your 1981 Checker Marathon with camshafts? At Tunersports.com we carry a huge selection of the top name brand performance camshaft parts and accessories.
 IN STOCK - DROPSHIPS 12-512-5Solid: Good for 350-400 on Big 3/8 to 1/2 mile tracks with high sustained RPM. Best with Big carburetor and good intake. 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, pleas... COMP Cams Camshaft CS280TLS-6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 OUT OF STOCK 12-515-20COMP Cams Nitrided Camshaft CS 288TLS-6 1980-1982 Checker Marathon Base / Deluxe $406.95 |
 IN STOCK - DROPSHIPS 12-515-5SBC - 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.... COMP Cams Camshaft CS 288TLS-6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 OUT OF STOCK 12-517-20COMP Cams Nitrided Camshaft CS 296TLS-6 1980-1982 Checker Marathon Base / Deluxe $406.95 |
 IN STOCK - DROPSHIPS 12-517-5SBC - 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.... COMP Cams Camshaft CS 296TLS-6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-518-5SBC - 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.... COMP Cams Camshaft CS 300F-6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-519-5SBC - 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.... COMP Cams Camshaft CS 304TLS-6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-520-5For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS 22/12 H6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-521-5For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS 41/15 H6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-522-5For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS 45/28 H6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-523-5SBC - 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.... COMP Cams Camshaft CS 6350/6351 S6 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-524-51/3-1/2 tracks with tight corners or heavy surface. 327-358 c.i., 11:1, 2/4 BBL gas or alcohol. Premium-quality valve springs, lifters, pushrods recommended. 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 C... COMP Cams Camshaft CS 281Jfa S7 Modifie 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 IN STOCK - DROPSHIPS 12-525-53/8-5/8 tracks with wide corners or slick surface. 355+ c.i., 12:1, 4 BBL gas or alcohol with good intake and heads. Premium-quality valve springs, lifters, pushrods recommended. The OWM T/C Series offers a Cam for just about every open wheel modified racer. With the newest lobe designs, a nice broa... COMP Cams Camshaft CS 285Jfa S7 Modifie 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 OUT OF STOCK 12-526-20Open Wheel Modified Traction Control NIT 254/260 Solid Flat Cam for SBC... COMP Cams Nitrided Camshaft CS280Mhqs7 1980-1982 Checker Marathon Base / Deluxe $406.95 |
 IN STOCK - DROPSHIPS 12-526-51/3-1/2 tracks with tight corners or heavy surface. 327-358 c.i., 11:1, 2/4 BBL gas or alcohol. Premium-quality valve springs, lifters, pushrods recommended. The OWM T/C Series offers a Cam for just about every open wheel modified racer. With the newest lobe designs, a nice broad torque curve with g... COMP Cams Camshaft CS 280Mhq S7 Modifie 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 OUT OF STOCK 12-527-20Open Wheel Modified Traction Control NIT 258/264 Solid Flat Cam for SBC... COMP Cams Nitrided Camshaft CS284Mhqs7 1980-1982 Checker Marathon Base / Deluxe $468.95 |
 OUT OF STOCK 12-527-53/8-5/8 tracks with wide corners or slick surface. 355+ c.i., 12:1, 4 BBL gas or alcohol with good intake and heads. Premium-quality valve springs, lifters, pushrods recommended. The OWM T/C Series offers a Cam for just about every open wheel modified racer. With the newest lobe designs, a nice broa... COMP Cams Camshaft CS 284Mhq S7 Modifie 1980-1982 Checker Marathon Base / Deluxe $325.96 |
 OUT OF STOCK 12-552-4For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS Nx256H-13 1980-1982 Checker Marathon Base / Deluxe $311.32 |
 IN STOCK - DROPSHIPS 12-556-4For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS Nx262H-13 1980-1982 Checker Marathon Base / Deluxe $311.32 |
 IN STOCK - DROPSHIPS 12-560-4For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS Nx268H-13 1980-1982 Checker Marathon Base / Deluxe $311.32 |
 IN STOCK - DROPSHIPS 12-564-4For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS Nx274H-13 1980-1982 Checker Marathon Base / Deluxe $311.32 |
 IN STOCK - DROPSHIPS 12-568-4For Hydraulic Flat Tappet Lifters... COMP Cams Camshaft CS Nx284H-13 1980-1982 Checker Marathon Base / Deluxe $311.32 |
 OUT OF STOCK 12-600-20Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration... COMP Cams Nitrided Camshaft CS 279T H7 1980-1982 Checker Marathon Base / Deluxe $468.95 |
 OUT OF STOCK 12-600-8WARNING: 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.... COMP Cams Camshaft CS 283T HR-107 T Thu 1980-1982 Checker Marathon Base / Deluxe $553.98 |
 OUT OF STOCK 12-601-20Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration... COMP Cams Nitrided Camshaft CS 287T H7 1980-1982 Checker Marathon Base / Deluxe $468.95 |