BRAND NEW SOUTHWEST SPEED CHEVY ALUMINUM BELLHOUSING TO FIT 11" CLUTCHES. THIS REPRODUCED BELLHOUSING HAS THE GM # 3899621 STAMPED ON THE BELLHOUSING. THIS SOUTHWEST SPEED 11" PERFORMANCE CAST ALUMINUM BELLHOUSING IS A REPRODUCTION OF THE ORIGINAL 3899621 BELLHOUSING USED ON GM MODELS WITH BIG BLOCK & SMALL BLOCK ENGINES EQUIPPED WITH AN 11" CLUTCH. THIS PERFORMANCE ALUMINUM BELLHOUSING HAS THE GM PART # 3899621 CASTING NUMBER STAMPED ON THE OUTSIDE OF THE BELLHOUSING JUST LIKE THE ORIGINAL. IF YOU ARE DOING A RESTORATION OF AN EARLY MUSCLE CAR, OR JUST WANT THE ORIGINAL 621 BELLHOUSING TO FINISH THAT ROD PROJECT, THIS BELLHOUSING IS THE PERFECT PART!FEATURES: FACTORY REPRODUCTION 3899621 BELLHOUSING 3899621 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 APPLICATIONS: 1964-1988 CHEVY CHEVELLE, MALIBU, MONTE CARLO* 1959-1987 CHEVY EL CAMINO* 1959-1988 CHEVY IMPALA, CAPRICE, BEL AIR, BISCAYNE, BROOKWOOD, KINGSWOOD, NOMAD, SEDAN DELIVERY* 1963-1981 CHEVY CORVETTE* 1967-1981 CHEVY CAMARO* 1968-1974 CHEVY II, NOVA* *WITH MANUAL TRANSMISSIONS & 168 TOOTH FLYWHEEL THE BELLHOUSING WAS USED WITH 4 SPEED TRANSMISSIONS IN 66-72 CHEVELLE, 66-81 CORVETTE, 67-72 CAMARO, 68-72 NOVA, & 64-81 IMPALA, BUT WITH ANY GM TRANSMISSION THAT MEASURES 4.675" AND AN 11" CLUTCH, IT WILL FIT GREAT IN ALL OF THE ADDITIONAL APPLICATIONS SHOWN ABOVE, AS WELL AS MANY DIFFERENT TYPES OF PROJECTS. THIS WILL MAKE IT A SNAP TO GET THAT BIG GM BELLHOUSING IN YOUR MUSCLE CAR OR ROD PROJECT. THIS NEW CHEVY HIGH PERFORMANCE 11" STYLE ALUMINUM BELLHOUSING WAS ISSUED ON CAMAROS, CHEVELLES, IMPALAS, CORVETTES & NOVAS WITH BIG BLOCK 396, 427, & 454 ENGINES, AS WELL AS YENKO, COPO, & ZL1 AND ALSO SMALL BLOCKS LIKE 302, 327, 350 & 400 WITH THE 168 TOOTH, 14" FLYWHEELS AND 11" CLUTCHES, INCLUDING Z28, YENKO, & DEUCE MODELS. WILL ACCEPT YOUR ORIGINAL MUNCIE OR SAGINAW MANUAL TRANSMISSION WITH A 4.675" O.D. BEARING RETAINER. WILL EVEN WORK WITH THE TREMEC 5 & 6 SPEED TRANSMISSIONS. YOU CAN USE ONE OF THE NEW BOLT-IN CLASSIC CAR CONVERSION TRANSMISSIONS AND STILL USE ALL OF THE STOCK 4 SPEED PEDALS AND RODS WITH THIS BELLHOUSING. WE ALSO HAVE AVAILABLE THE CLUTCH FORK, CLUTCH FORK BOOT, FLYWHEEL INSPECTION COVER, THROWOUT BEARING, & CLUTCH FORK PIVOT BALL TO GO WITH THIS 621 STAMPED BELL HOUSING.WILL NOT WORK ON 1962-1967 CHEVY II & CHEVY NOVA MODELS, AS THE SIZE OF THE TRANSMISSION TUNNEL IS TOO NARROW.WILL NOT WORK ON MONZA OR VEGA AS THEY BOTH USED A CABLE OPERATED 10.5" CLUTCH WITH THE PIVOT ON THE OTHER SIDE. THE CLUTCH FORK WAS ALSO ANGLED ABOUT 45 DEGREES, NOT STRAIGHT ACROSS.
