The Chevrolet small block engine is arguably the most popular engine ever fitted into a vehicle. Thus, nearly every aftermarket company offers and continually develops new engine parts for increased small-block performance. To that point, Holley Performance has just introduced its all-new Hi-Ram EFI Intakes for the small block Chevy.
There are two manifold offerings: the traditional long-runner Hi-Ram (Part No. 300-950) with a 105mm throttle body and the Low-Ram (Part No. 300-951) front feed version with a 95mm throttle body. The Low-Ram construction, designed for the first, second, and third-generation Camaro, clears the hoods without needing modification. The LS-style throttle bodies are available through Holley or Sniper.Ā
The Hi-Ram intakes are not just a standalone part; they can be part of a complete EFI system that maximizes the engineās potential. Equipped with the proper manifold hardware and software programming, the Holley EFI systems can manage engines up to 440 cubic inches and engine speeds exceeding 8500 RPM. With their nearly straight shot from the plenum to the cylinder head, the manifold runners allow maximum airflow. The runner castings have plenty of extra material for port matching to the cylinder head ports.Ā
The manifolds are not just for naturally aspirated engines; they can also accommodate the boost crowd. Holley has engineered the manifold to withstand extreme pressures, whether it is boost from a turbo or a supercharger. Additionally, the layout of the manifolds allows easy feed line plumbing if the engine combination requires nitrous oxide. The manifolds have provisions for an LS-style MAP sensor and a distributor fitted with a small cap.Ā
Consider Holley and its subsidiary companies for all your small-block Chevy needs. The Holley Performance catalog includes EFI fuel tanks, modules, fuel pumps, filters, regulators, and plumbing and fittings. For a deeper dive into Holley’s products, drop by Holley.com.
For the last twenty-five years, Chris has been an automotive college professor. Since 2003, he has taught at Pennsylvania College of Technology in Williamsport, PA. Chris instructs automotive electrical & electronics, HVAC, and various high-performance classes, which include the usage of a Mustang chassis dyno, flow benches, and various machining equipment. Recently, he had a vintage vehicle upholstery class added to his teaching assignments. Chris owns a ’67 273 Dart, a ’75 Slant-Six Dart, an ’06 5.7L Hemi Police Pursuit Charger, and a ’12 Cummins turbo diesel Ram, and he is a multi-time track champion (drag racing) with his ’69 340 Dart, which he has owned since 1989.
