Holley Hi-Ram Lower Manifold - GM LT1 - 300-237 shifter-cables The exhaust system is backed

The exhaust system is backed by our Limited Lifetime Warranty and includes all necessary parts

the benefits include improved throttle response and power

9L V8 1977 - 1978 Chevrolet K10   305/5L V8 1977 - 1978 Chevrolet K20   305/5L V8 1977 - 1978 Chevrolet K20 Suburban   305/5L V8 1977 - 1978 GMC K15   305/5L V8 1977 - 1978 GMC K15 Suburban   305/5L V8 1977 - 1978 GMC C25 Suburban   305/5L V8 1976 - 1977 Chevrolet El Camino   305/5L V8 1977 - 1978 Chevrolet C20   305/5L V8 1976 - 1977 Chevrolet Malibu   305/5L V8 1976 - 1977 Chevrolet Monte Carlo   305/5L V8 1977 - 1978 GMC C15   305/5L V8 1977 - 1978 GMC C15 Suburban   305/5L V8 1977 - 1978 GMC C25   305/5L V8 1980 - 1981 Pontiac Catalina   305/5L V8 1976 - 1977 Pontiac LeMans   305/5L V8 1977 - 1978 GMC K25 Suburban   305/5L V8 1977 - 1978 Chevrolet C10   305/5L V8 1977 - 1978 GMC K25   305/5L V8 1971 - 1972 Chevrolet Brookwood   307/5L V8 1971 - 1972 Chevrolet Kingswood   307/5L V8 1980 - 1981 Buick Riviera   307/5L V8 1973 - 1974 Chevrolet Blazer   350/5

Frostbite Water Pumps are available in Cast and Billet aluminum housings

Aluminized Tubing: Constructed from aluminized steel for enhanced durability and corrosion resistance

Holley Hi-Ram Lower Manifold - GM LT1 - 300-237 shifter-cables The exhaust system is backedOverview: The new Holley EFI Hi Ram intake provides the ultimate performance with the new GM direct injected Gen V 6. 2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake