ARP offers two styles of Flexplate bolts: premium grade Pro Series rated at 190,000 psi and High Performance Series that are rated at 180,000 psi. Both feature an exclusive, flat, 12-point head design and larger than stock shank diameter for increased strength and improved flywheel register.
Features
- Far surperior to OEM hardware
- Forged from aerospace alloy
- Flat 12 point head design
- Larger than stock shank diameter for increased strength & improved flexplate register
- High Performance series bolts are rated at 180,000 PSI while Pro Series bolt are rated at 200,000 PSI
- Thread Size:
- 7/16-20 in.
- Underhead Length (in.):
- 0.680 in.
- Head Style:
- 12-point
- Rear Main Seal Style:
- 2-piece
- Material:
- Steel
- Finish:
- Black oxide
- Fastener Tensile Strength (psi):
- 200,000 psi
- Washers Included:
- No
- Quantity:
- Sold as a set of 6.
- Notes:
- Uses 3/4 in. socket. Will not work on 1986 and later Small Block Chevrolet with 1-piece rear main.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 6.5L/396-7.4L/454
- Years:
- 1966-1990
- Engine Family:
- Chevy big block Gen V
- Years:
- 1991-1995
- Engine Family:
- Chevy big block Gen VI
- Years:
- 1996-2000
- Engine Sizes:
- 7.4L/454
- Engine Family:
- Chevy small block Gen I
- Engine Sizes:
- 4.3L/265-6.6L/400
- Years:
- 1955-2000
- Make:
- Ford
- Engine Family:
- Ford big block 385 Series
- Engine Sizes:
- 7.0L/429-7.5L/460
- Years:
- 1968-1987
- Engine Family:
- Ford big block FE
- Engine Sizes:
- 5.8L/352-7.0L/428
- Years 6:
- 1957-1976
- Engine Family:
- Ford Cleveland
- Engine Sizes:
- 5.8L/351
- Years:
- 1970-1973
- Engine Family:
- Ford Modified
- Engine Sizes:
- 5.8L/351-6.6L/400
- Years:
- 1971-1982
- Engine Family:
- Ford small block Windsor
- Engine Sizes:
- 4.3L/260-5.8L/351
- Years:
- 1962-1995
