This Big End Performance SFI Flexplate for 1965-1988 Big Block Chevrolet's with 2-peice rear main seal and external balanced. Has a 168-tooth ring gear (14.13 in. diameter). For use with converters that are using a 10.75 in. or 11.5 in. bolt pattern. SFI-29.1 approved for all NHRA or IHRA drag racing classes that require an SFI stickered flexplate. This flex plate is .35 thiker than stock flexplates. All Big End Performance flexplates come zinc plated for moisture resistence.
Features
- Ring Gear Tooth Quantity:
- 168-tooth
- Rear Main Seal Style:
- 2-piece
- Engine Balance:
- External
- Flexplate Material:
- Steel
- Safety Rating:
- SFI 29.1
- Converter Bolt Pattern:
- 10.750 in. and 11.500 in.
- Crankshaft to Flywheel Attachment:
- 6-bolt
- Quantity:
- Sold individually.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 7.4L/454
- Years:
- 1970-1990
