17800393 HT383E What's Hot? Four-bolt mains Perfect truck/SUV upgrade Easy installation An emissions-legal small-block that brings on the torque for your '96''99 GM truck/SUV! The HT383E crate engine from GM Performance Parts is an exciting new extension of our 'High Torque' line that is especially designed for your '96''99 half-ton, full-sized GM pickup trucks and SUVs, with the L31 350. The HT383E is a direct replacement for your high-mileage 5.7L stock engine. The HT383E offers you the same brute strength of our HT383: forged steel crank, 4-bolt main cast iron block, and a camshaft designed for towing and hard work. With 383 cubic inches, you also get a broad torque band that peaks at 3600 rpm with horsepower peaking at 4500 rpm. Our GM Performance Parts engineers designed the HT383E so that installation is as easy as possible. Simply swap your new HT383E in place of your existing 5.7L engine using your stock intake manifold, wiring harness, and fuel injection system. The stock computer adapts to the new HT383E, and you suddenly have a stump-pulling, big-inch small-block at your disposal. Go with the HT383E, and get the job done right! I am considering installing the above described GM Performance Parts engine in my wife's 1999 1/2 ton Suburban. Does anyone here have any experience of using this same engine and is the stock transmission enough to handle the torque or are there some modifications that need to be done? A brake upgrade from SSBC is also in the plans.