Brand New Southwest Speed Aluminum Bellhousing Kit with Throwout Bearing for use with 10 1/2" Clutches with Manual Transmission (Kitted Part #650-39735). This Southwest Speed Performance Cast Aluminum Bellhousing Kit is a direct reproduction of the original GM part #3858403, stamped with the correct casting number just like the factory unit, making it the perfect choice for restoring early muscle cars or finishing a rod project. Designed for Big Block engines including the 396, 427, and Small Blocks like the 230, 250, 283, 302, 327, and 350 this bellhousing is engineered for use with 153-tooth, 12 3/4" flywheels paired with 10 1/2" clutches. It fits GM transmissions featuring a 4.675" front bearing retainer (O.D.), accepting originals like the Muncie, Saginaw, and T-10, as well as modern bolt-in conversion transmissions. This versatile upgrade allows you to retain your stock 4-speed pedals and linkages while replacing the heavy cast iron housing with a lighter, high-performance aluminum unit for your muscle car or custom project. Applications: Chevrolet: 1964-1973 Bel Air 1964-1973 Biscayne 1964-1981 Camaro 1966-1979 Caprice 1965-1969 Chevelle 1968-1974 Chevy II 1963-1969 Corvette 1964-1979 Impala 1976-1977 Malibu 1968-1974 Nova Notes: Vehicle must have manual transmission and 153 tooth flywheel This kit will not fit 1963 and earlier Corvettes due to the smaller size of the front bearing retainer. Incompatible with 1977-1978 Malibus due to the angle of the clutch fork. If your application requires a 1 3/4" Clutch ball instead, of the included 1 1/2" ball, let us know and we can switch them out at no extra charge. Click here to view the 1 3/4" pivot ball. Kit Includes: Southwest Speed Cast Aluminum Performance Bellhousing (#650-3973) Factory Reproduction 3858403 Bellhousing Fits 10 1/2" Clutches with 153 tooth flywheel Won't work with 168 tooth flywheels 3858403 Stamped on Bellhousing Cast Aluminum Housing Works with GM transmissions with a 4.675" O.D. Bearing Retainer 1/2"-13 tapped hole for z-bar manual clutch linkage, if needed. Fits ALL Small Block & Big Block Chevrolet engines regardless of factory clutch size Southwest Speed Bellhousing Inspection Cover (#650-3966) Replaces GM Part # 354497 Includes 1/4" bolts to install inspection shield Exact Replica of the Original Southwest Speed Clutch Fork with Ball Retaining Spring (#650-4028) Replaces GM # 3892632 Exact Replica of the Original Southwest Speed Throwout Bearing (#650-4035) Replaces GM # 19245400 Exact Replica of the original Designed to effectively reduce friction Made of high quality materials for long service life Southwest Speed Clutch Fork Boot (#650-3952) Replaces GM Part # 3993851 Exact Replica of the original Molded from E.P.D.M rubber for a snug fit that will last for years Southwest Speed Standard Clutch Fork Pivot Ball (#650-4018) Replaces GM Part # 3729000 Installs into bellhousing to support clutch fork 13/16"-16 Threads, 1 1/2" total length end to end
