King Alecular Pro Series Main Bearings – SB Chevy 350 (1976-98), SB Chevy 400 (1970-80) w/ Grooved Uppers – .030″

King Engine Bearings is a world class developer and manufacturer of engine bearings. King Engine Bearings only product is engine bearings, and because of this specialization, it produces the highest quality engine bearing available in the engine aftermarket. The King Engine Bearing line now includes King rod bearings, King main bearings, King thrust bearings and King cam bearings and a special line of King High Performance bearings. King Engine Bearings recognizes racing as the ultimate laboratory for testing King bearings. The loads engine bearings experience in racing engines are enormous. At King Engine Bearings applies what they learn from racing to help them make better bearings — for race engines and for your everyday station wagon, too. Racers have benefited from King Engine Bearings innovations like: Aleculara” Bearing Material — KING developed this alternative to the traditional tri-metal bearings construction.KING bearings have a single deep (.012″ – .015″) layer of Alecular material, an exclusive alloy of aluminum, tin, copper and other metals, on the steel backing.This gives us superior embedability. “Bull’s Eye” Bearing Wall Tolerance — With advanced quality control procedures, KING is able to maintain rod and main bearing wall thickness tolerances at an amazingly tight plus or minus .0001″ — far tighter than other manufacturers. “MaxFlangeA” — A manufacturing principle that lets racers and street engine rebuilders save engines with borderline crankshaft endplay situations without additional machining.Precisely-controlled bearing flange length is the secret.King originated this manufacturing technology.

Product Descripton: