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 Hilborn ...

Unlike most of its competitors, the Chevrolet Mark IV Rat motor was designed from the beginning to be a high-performance race engine, with the initial Daytona "Mystery Motor" configuration merely ...

From its 1965 introduction to its production supersession by the improved Mark V engine in 1991, the big-block Chevy Rat has carved its mark in virtually every form of racing, becoming in the process ...

Take your pick. Whether you choose to let nature fill your engine's cylinders with 14.7 psi of absolute pressure or you cram a bit more in the hole with a blower, Weiand has you covered. For about as ...