M311 273cc LS3 Cylinder Heads | 11° valve angleFully CNC ported, 68cc chamber volume 273cc intake port, 112cc exhaust port and 11 valve angle High Quality Components: Black Nitride Stainless Steel Severe Duty Valves Custom PAC . 700 Lift Valve Springs Titanium Retainers O Ringed Exhaust Ports (Hi Temp Silicone O rings Included) 2 Headers Recommended Description The Monster Series is the first threshold into HP creation far beyond any OEM head. Frankenstein introduced another level of horsepower

mounts directly behind the stock catalytic converters and connects to either stock or CORSA axle-back systems

ensuring correct engagement with the crank and cam sprockets while maintaining proper tension and alignment

- Cold forged steel body heat treated for exceptional wear resistance

SKU:001-0283

What this all means is that you get a simple-to-install

Available for:

LMP Cadillac CTS-V 3 Expansion Tank

slower reaction times

They provide your engine with the largest amount of high-flowing air

We also have many applications for round racing and universal clamp-on filters

A must when upgrading to a high performance Camshaft or higher load valve springs

SKU:918854