Best Connecting Rod Bearings

Summit racing carries rod bearings for street strip and race only applications made from a wide variety of high quality materials and in all critical sizes for your crankshaft.

Best connecting rod bearings.

Bearings clearance basics best bearings one of the abilities that separates the experienced engine builders from the novices is properly fitting the bearing clearances for both the crank and rod. Most rod and main bearings run best with 0007 to 001 of clearance for every inch of crankshaft journal diameter or 0015 to 002 inches of oil clearance for a 2 inch diameter shaft but these numbers will vary with the oil viscosity and application. Another old school trick was a main bearing set with a 360 degree groove. Proper housing bore size and cap fastener torque will ensure that the bearing is properly crushed for maximum retention.

According to sledge both connecting rod and main bearing housing bores need to have a surface finish of approximately 60 to 90 micro inches. And they are all on a comparative basis much softer than the iron and steel crankshafts that run against them. The most commonly used materials in crankshaft bearings are aluminum copper lead and tin. Upper main shells which see less loads than the lowers have retained a groove to supply the connecting rods with oil.

Connecting rod bearings shop our huge selection of direct replacement and performance connecting rod bearings for every vehicle make and model from 1946 through today.