CHEVROLET 265 V8 HISTORY CRACK

Usually modification of the oil pump pressure relief valve spring was only done during a rebuild after the wear and damage had already occurred. The solution to that problem was to stretch the oil pump pressure relief valve spring, hence allowing the oil pump to deliver maximum oil pressure. Unfortunately, this meant that the cylinders would have to be replaced.ДЄnother issue with the 265 was related to their camshafts which would wear out because of oil deprivation due to the oil pump not delivering sufficient oil volume and pressure. The cylinders would wear a grove at the top where the piston rings stopped traveling upwards on the compression and exhaust stroke. All Chevrolet V8s, from the big-blocks to todays LS7 and LS9, evolved from the 265 / 283 cu in (4.3 / 4.6 L) small-block family.

CHEVROLET 265 V8 HISTORY CRACK

One major problem that GM had with the Chevy 265 was that the pistons would crack at the skirt, usually around 30k miles, causing a deep knocking noise when accelerating. There was an oil filter that was added during production on the housing for the thermostat but it was not adequate enough to give the engine any long term durability. One major drawback that the 265 V8 had was that it was produced with nothing built into the block to assist with the filtration of oil. So evidently, evolution is a good thing, and the small block Chevy engines that have been pumped out of the GeneralвЂ™s engine plants all over the world are no exception. This impressive little small block V8 produced between 162 and 195 horsepower depending on the carburetor setup and greatly helped revive the numbers of sells for the Corvette.ДЄlthough the 265 Chevy V8 did a lot for the evolution of the small block engines it was chopped for the 1957 production year and replaced by the popular Chevy 283 V8 small block. The engine that started the legacy, the 265, was Chevrolet's first foray into affordable V8 performance in an entry-level sedan, not that of a big full-sized performer. So in just a little less than 4 months the 265 went from the drawing board to a production engine. People were looking for something stronger than the Chevy 235 which was only good for 150 horsepower. The 265 was designed for the most part to save the Corvette from being chopped due to the fact that only 700 Corvettes were sold for the 1955 model year. The Chevrolet 265 V8 was first introduced in 1955 and was the first small block V8 ever produced by GM.

Chevrolet 265 v8 history