B&M 20230 | Automatic Transmission Flexplate

As performance levels increase, an O.E. style flexplate just won't cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1955-85 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1990 and earlier GM big block (internally balanced) V8 engines with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.

• Ideal For Street Applications
• FLEXPLATE 168 TOOTH
• Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
• Includes SFI Certification Sticker
• NHRA/IHRA Legal For All Classes
• 20230; Flexplate; B/M; transmission; automatic; shift kit; improver; transkit; racing; knob; lever; torque converter
• Auto Trans Flexplate
• Automatic Transmission Flexplate; Standard SFI; Internal Balance; 168 Tooth; 10.75 in. and 11.5 in. Bolt Circle;
• To Extreme Duty Racing
• Fits 1955 to 1985 GM small block V8 and 90 degree V6 engines uses 168 tooth ring gear. Also fits 1990 and earlier GM big block V8 engines and uses a 168 tooth ring gear. Does not fit 400 cid or 454 cid engines. Has 10.75 inch and 11.5 inch bolt patterns. Compatible with Powerglide; TH350; TH400 and TH700R4 automatic transmissions
• Automatic Transmission Flexplate
• To High RPM Use

Standard SFI; Internal Balance; 168 Tooth; 10.75 in. and 11.5 in. Bolt Circle





WARRANTY TIME: 12 Months

• 1970-1972 Chevrolet Chevelle
• 1967-1969 Pontiac Executive
• 1966-1972 Chevrolet Caprice
• 1983-1985 Pontiac Firebird
• 1976-1980 Pontiac Sunbird
• 1978-1980 Pontiac Grand Am
• 1979-1985 GMC K1500
• 1967-1985 Chevrolet K20 Suburban
• 1976-1980 Pontiac Catalina
• 1975-1980 Oldsmobile Cutlass Supreme
• 1975-1978 GMC C35
• 1983-1985 Pontiac Grand Prix
• 1965-1967 Oldsmobile 98
• 1963-1982 Chevrolet Corvette
• 1978-1980 Oldsmobile Cutlass Calais
• 1975-1985 Chevrolet C30
• 1975-1980 Chevrolet Monza
• 1964-1964 Chevrolet Corvair Truck
• 1963-1966 GMC PB1000 Series
• 1975-1981 Buick Electra
• 1975-1978 GMC K15 Suburban
• 1971-1971 Pontiac Bonneville
• 1979-1980 GMC P1500
• 1979-1985 GMC K1500 Suburban
• 1968-1981 Oldsmobile Cutlass
• 1979-1985 GMC K2500
• 1965-1973 Pontiac Catalina
• 1984-1985 Chevrolet Corvette
• 1969-1972 Buick Skylark
• 1964-1965 GMC B3500
• 1965-1966 Oldsmobile Starfire
• 1977-1979 Pontiac Phoenix
• 1983-1985 Pontiac Parisienne
• 1964-1966 Cadillac Eldorado
• 1967-1985 Chevrolet C20 Suburban
• 1979-1985 GMC G1500
• 1973-1979 Oldsmobile Omega
• 1967-1981 Chevrolet Camaro
• 1985-1985 GMC Safari
• 1974-1974 GMC G35/G3500 Van
• 1965-1965 Pontiac LeMans
• 1965-1969 Cadillac Calais
• 1970-1970 Buick Estate Wagon
• 1965-1967 Buick Special
• 1979-1985 GMC G3500
• 1971-1977 GMC Sprint
• 1969-1969 Buick Special
• 1977-1977 Pontiac Grand Safari
• 1958-1958 Chevrolet Del Ray
• 1968-1975 Oldsmobile Vista Cruiser
• 1966-1966 Pontiac GTO
• 1967-1968 Oldsmobile Delmont 88
• 1967-1974 GMC C35/C3500 Pickup
• 1977-1985 Pontiac Bonneville
• 1973-1983 Chevrolet Malibu
• 1973-1973 Buick Electra
• 1975-1985 Chevrolet C20
• 1967-1974 GMC C25/C2500 Suburban
• 1979-1985 GMC P3500
• 1979-1985 GMC K3500
• 1963-1972 Chevrolet Biscayne
• 1965-1967 GMC L3500
• 1975-1978 GMC P15
• 1966-1967 GMC LI3500
• 1973-1973 Buick Centurion
• 1979-1985 GMC P2500
• 1972-1974 Oldsmobile 98
• 1970-1972 Buick GS
• 1973-1975 Buick Apollo
• 1979-1985 GMC C3500
• 1966-1967 Chevrolet Chevy II
• 1975-1985 Chevrolet Caprice
• 1965-1965 GMC PB2500 Series
• 1955-1957 Chevrolet One-Fifty Series
• 1968-1974 GMC C15/C1500 Pickup
• 1975-1985 Chevrolet K10
• 1973-1981 Buick Regal
• 1964-1969 Buick Riviera
• 1975-1980 Oldsmobile Starfire
• 1964-1968 Chevrolet Chevelle
• 1977-1978 GMC K35
• 1967-1974 GMC C25/C2500 Pickup
• 1971-1977 Pontiac Ventura
• 1965-1966 Oldsmobile F85
• 1977-1981 Cadillac DeVille
• 1975-1985 Chevrolet P30
• 1975-1980 Buick Skyhawk
• 1976-1980 Oldsmobile 98
• 1974-1974 Pontiac Bonneville
• 1979-1985 GMC C2500
• 1980-1980 Oldsmobile Cutlass Cruiser
• 1977-1981 Buick Estate Wagon
• 1968-1974 GMC C15/C1500 Suburban
• 1979-1985 GMC C2500 Suburban
• 1975-1976 Chevrolet Laguna
• 1975-1985 Chevrolet G20
• 1968-1970 Oldsmobile 442
• 1975-1985 Chevrolet K20
• 1977-1985 Chevrolet K30
• 1965-1965 Pontiac Tempest
• 1975-1978 GMC C15 Suburban
• 1965-1966 GMC I1500
• 1968-1974 GMC K25/K2500 Suburban
• 1965-1969 Pontiac Bonneville
• 1975-1980 Chevrolet P10
• 1967-1974 GMC K15/K1500 Suburban
• 1975-1979 Buick Skylark
• 1976-1980 Pontiac Grand Prix
• 1964-1964 Cadillac Series 60 Fleetwood
• 1964-1964 Cadillac Series 75 Fleetwood
• 1976-1976 Oldsmobile Cutlass Tiara
• 1970-1985 Chevrolet Monte Carlo
• 1976-1978 Cadillac Seville
• 1975-1978 GMC G15
• 1969-1972 Chevrolet Kingswood
• 1963-1967 Chevrolet P10 Series
• 1975-1980 Oldsmobile Cutlass Salon
• 1977-1980 Oldsmobile Custom Cruiser
• 1964-1966 GMC I1000
• 1975-1978 GMC G35
• 1983-1985 GMC S15 Jimmy
• 1964-1969 Buick Wildcat
• 1975-1978 GMC C15
• 1984-1984 Oldsmobile Cutlass Supreme
• 1970-1985 GMC Jimmy
• 1975-1985 Chevrolet G10
• 1966-1966 GMC I3500
• 1963-1965 GMC 1000 Series
• 1978-1980 GMC Caballero
• 1975-1978 GMC C25 Suburban
• 1975-1985 Chevrolet C10
• 1983-1985 GMC S15
• 1969-1978 Chevrolet Nova
• 1970-1974 GMC K35/K3500 Pickup
• 1967-1985 Chevrolet C10 Suburban
• 1963-1967 Chevrolet P30 Series
• 1965-1966 Pontiac Star Chief
• 1975-1980 Pontiac Grand LeMans
• 1965-1969 Cadillac DeVille
• 1969-1972 Chevrolet Townsman
• 1973-1981 Buick Century
• 1984-1985 GMC Caballero
• 1963-1975 Chevrolet Bel Air
• 1963-1965 GMC PB1500 Series
• 1973-1975 Pontiac Grand Am
• 1975-1985 Chevrolet P20
• 1955-1957 Chevrolet Two-Ten Series
• 1979-1985 GMC G2500
• 1975-1978 GMC P35
• 1967-1967 Chevrolet K20 Panel
• 1983-1985 Chevrolet Camaro
• 1963-1965 GMC 1500 Series
• 1965-1966 GMC I2500
• 1969-1981 Pontiac Firebird
• 1975-1978 GMC K25
• 1967-1974 GMC K25/K2500 Pickup
• 1966-1966 GMC P1000
• 1967-1985 Chevrolet K10 Suburban
• 1975-1978 GMC K15
• 1965-1974 Cadillac Fleetwood
• 1977-1983 Cadillac Commercial Chassis
• 1979-1985 GMC K2500 Suburban
• 1970-1971 GMC G35/G3500 Van
• 1975-1985 Chevrolet K5 Blazer
• 1969-1974 Chevrolet Blazer
• 1968-1972 Oldsmobile F85
• 1964-1981 Buick LeSabre
• 1983-1985 Chevrolet S10
• 1975-1978 GMC P25
• 1975-1978 GMC C25
• 1977-1978 Buick Riviera
• 1964-1964 Chevrolet Corvair
• 1977-1984 Cadillac Fleetwood
• 1964-1967 Buick Electra
• 1984-1984 Oldsmobile Cutlass Calais
• 1966-1972 Buick Sportwagon
• 1966-1974 GMC K15/K1500 Pickup
• 1969-1972 Chevrolet Brookwood
• 1964-1985 Chevrolet El Camino
• 1985-1985 Chevrolet Astro
• 1975-1978 GMC K25 Suburban
• 1968-1980 Oldsmobile Delta 88
• 1965-1967 Buick Skylark
• 1975-1985 Chevrolet G30
• 1975-1978 GMC G25
• 1968-1980 Pontiac LeMans
• 1964-1974 Cadillac Commercial Chassis
• 1960-1960 Chevrolet Truck
• 1955-1958 Chevrolet Truck
• 1967-1967 Buick Gran Sport
• 1967-1974 Chevrolet G20 Van
• 1965-1969 Pontiac Grand Prix
• 1984-1984 Buick Regal
• 1963-1967 Chevrolet P20 Series
• 1964-1964 Cadillac Series 62
• 1965-1985 Chevrolet Impala
• 1973-1973 Buick Estate Wagon
• 1979-1985 GMC C1500 Suburban
• 1979-1985 GMC C1500
• 1983-1985 Chevrolet S10 Blazer
• 1968-1970 Pontiac Tempest