Base Manifold and Rail Kit for Lo-Ram 300-620 - 300-600 y-pipe Port Shape: Oval / D

Port Shape: Oval / D Port

Intermediate Brake Line For 71-72 C10 71-72 C1500 2WD Short Bed Coil Springs Rear Stainless

Muffler Body Width: 4

Part Number: 717873

Flowmaster Quality & Durability

Base Manifold and Rail Kit for Lo-Ram 300-620 - 300-600 y-pipe Port Shape: Oval / DOverview: The Holley LS1 2 6 Lo Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1 2 6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads. The 300 600 is the lower manifold in the 300 620 complete kit. Offering this separately allows you to select your components individually as you build your system. The Lo Ram intake