Nitrous Express introduces ''Next Generation Technology'' 85mm throttle bodies for the LS-1/LS-6. Guaranteed not to stick or bind, this throttle body has a stainless steel throttle shaft riding on the highest quality sealed roller bearings and precision CNC manufacturing provides a perfect fit that does not allow the throttle blade to contact the throttle body throat. True 85mm knife edged throttle blades, flowing improving CNC machined Vortex generators, counter sunk throttle shaft screws, and custom triple 10 million cycle return springs insures that this is the highest quality, smoothest operating, throttle body on the market today. No OEM parts are reused in NX's throttle body, only the highest quality 6061 T-6 aluminum bodies, stainless steel hardware and black anodized meet NX's stringent quality standards. 744-10000 includes throttle body, gasket, and 90 degree crankcase vent fitting. Made in the USA.