Utilizing the proven short runner tunnel-ram style, both of these manifolds provide the next step up in performance for LT1 and LT4 owners. These are both direct stock replacements for OEM equipment with all required emissions features. Edelbrock SBC Performer RPM Manifold for 92-97 LT-1 Engines Edelbrock part #9672 Guide Plate is made from high-grade alloy steel and hardened to 60 Rockwell "C". Stepped plates support pushrods closer to the rockers stabilizing them. Sold in sets of 8. Chevrolet:Small-Block Gen II:350 (5.7L)
