Cylinder heads, typically recognized by a particular raised space resembling a camel’s hump, had been a well-liked efficiency enhancement element for small-block Chevrolet engines. These heads, usually forged with the numbers 186 or 291, provided improved airflow in comparison with factory-equipped heads of their period, contributing to elevated engine energy. A modified 350 cubic inch small-block Chevy engine, for instance, when geared up with these heads and an appropriate camshaft and consumption manifold, might reveal a big energy improve in comparison with its unique configuration.
The attraction of those cylinder heads stemmed from their available nature and cost-effectiveness as an improve. They offered a tangible enchancment in horsepower, particularly in functions the place racing or enhanced road efficiency was desired. Their historic significance lies of their contribution to the hot-rodding and drag racing scenes, changing into a staple modification for fans in search of elevated engine output with out in depth and costly modifications. The efficiency features provided helped solidify the small-block Chevrolet’s repute as a flexible and highly effective engine platform.
