Trick Flow R-Series single plane intake manifolds for GM LS3 bring the simplicity of carbureted-style aspiration to GM's late model aluminum powerhouse. The intakes are engineered to produce supreme power in heavily modified engines with 3,500-7,500 plus RPM powerbands. Other significant features include A319 aluminum construction, a one-piece spider-type design, high-flow individual runners combined with a raised plenum floor, integral bosses for adding nitrous, and extra material for custom porting. The manifold accepts Holley 4150-style square bore carburetors. Overall height to the mounting pads is 6.285 in.