Oval Track 253/257 Solid Roller Cam for Chevrolet Small Block
MECHANICAL ROLLER-1/4 - 3/8. 331-355 Limited LM, 2bbl & 390 4 bbl carbs
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 click here to contact us, and we will assist you with placing an order.