Buick 455 Engine Guide

The Buick 455 is a big block 7.5L V8 that was produced from 1970-1976. It came at a time when big block V8’s were dominating the muscle car world. The 455 cubic inch motor made 350-370 horsepower and 510 lb-ft of torque in its early days. However, changes with gas & emissions laws – as…