Cracked exhaust manifolds don't always scream for attention, but they sure steal power behind your back. On a Chevy big block, those heavy cast-iron manifolds take a beating from constant heat ...

Custom builders looking to add performance and styling punch to their Big Block Chevy engine can turn to Holley for the Hilborn EFI-R Individual Runner Manifolds kit. “Based on the original ...

However, big-block Chevy engines have been used in many ... Thanks to its free-flowing cylinder heads, intake and exhaust manifold ports, and better engine control electronics, the 8.1 Vortec ...

Action-Packed Big-Block ... single-plane manifold. Obviously, the stock peanut-port heads had to go. With a combination of small intake and exhaust ports as well as small-block-sized intake ...

The manifold was mostly ... required to mate with the exhaust system in the dyno cell. See All 24 Photos 20.Contributing to the good looks of Eric’s Chevy big-block are these faux carbon-fiber ...

Ron Shaver is no stranger to making horsepower, and to that point the big-block Chevrolet featured ... but I couldn't get there from here with the manifold and exhaust port." ...

We are referring to GM ... big block involve a forged steel crankshaft with four-bold main caps, forged aluminum pistons, forged steel connecting rods, and a CNC-machined aluminum intake manifold.