12/17/2022 0 Comments 235 chevy engine codes![]() ![]() A modified larger Rochester carburetor was also a 261 only feature. Its higher lift cam shaft, for better breathing, was shared only with the early 235 six cylinder Corvette. The connecting rods were heavier and attached to increased diameter piston wrist pins. It's standard bore diameter increased from 3-9/16 inches to 3-3/4 inches. This provided basic power, great dependability, and better gas mileage.īasically, this larger engine was a 235 with the same crankshaft but GM engineers made various modifications to give it extra strength and horsepower. Their base engine, also produced only in Canada, was the 261 not the V-8 as in the US. This larger six was not offered in US cars, however there was an exception in Canadian built full size Pontiacs. In 1958-6192 (the 261 now had a full flow remote oil filter) it became standard in the 2 ton chassis up to 19,000 pounds gross weight. During it's early years (1954-1957) it was an extra cost option above the standard 235 six cylinder. This was the quality built 261 cubic inch six cylinder! This 261 was available only in 2 ton (6000 or C60 series) trucks and school buses. However, at the same time a lesser known "big brother" to this base engine was being used. Between 1954-1962, Chevrolet produced their famous full oil pressure 235 cubic inch six cylinder in trucks and it soon proved to be one of the greats among engines. ![]()
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