B&M 20230 Fits - 1957-1985 Small Block Chevrolet, 1965-up 396-427 Big Block Chevrolet and 1978-2014 GM 90 degree V6 with 2-pc Rear Main Seal, 168-Tooth, Internal Balanced.

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 the high performance SFI approved flexplate designed for 1955-1985 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1965-up 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.

Features:
Dual Pattern 10.75-inch and 11.5-inch
NHRA and IHRA Legal For All Classes
Includes SFI Certification Sticker
Ideal For Street Applications
Zinc Plated Chromate Finish
To Extreme Duty Racing

Specifications:
# of Teeth    168
Brand    B&M
Crankshaft Bolt Hole Count    6
Dual Pattern    No
Engine    Big Block/    Small Block Chevy
IHRA Legal    Yes
NHRA Legal    Yes
Outside Diameter (in)    14.1
SFI Approved    Yes
SFI Certification    29.1
SFI Certification Sticker    Included
Weight (lb)    6.5
UPC    019695202309
Part Number    20230