Professional Products 53030 Hurricane Intake Manifold Features: Primarily Best On Big Block Engines Produces Power In The 600 To 700 HP Range Large Rectangular Ports Nitrous Bosses Four Corner Water Ports Dual Distributor Holddowns Height: 6.00 Width: 11.00 Length: 24.00 Weight: 21.00 lbs Fitment: 1989/GMC/V3500/Sierra Classic Standard Cab Pickup 2-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated^^1989/GMC/V3500/Sierra Classic Crew Cab Pickup 4-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated^^1989/GMC/V3500/Sierra Classic Cab & Chassis 4-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated^^1989/GMC/V3500/Sierra Classic Cab & Chassis 2-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated^^1989/GMC/V3500/High Sierra Standard Cab Pickup 2-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated^^1989/GMC/V3500/High Sierra Crew Cab Pickup 4-Door/7.4L 454Cu....