Double Welded Hughes flexplates are .035″ thicker than OEM and in most applications will withstand the punishment and shock of today’s high horse power and high RPM engines. Our race application flexplates will handle all Hughes high stall converters. For street, strip, and off road strength, Hughes Performance meets the needs.
GM
| Description | Part Number |
| 153 Tooth Chevrolet SFI, SBC, BBC, 90° V6 Internally Balanced 2 pcs. Rear Main Seal. | HP3995 |
| 153 Tooth Chevrolet SFI, Extreme Series (4mm thick), SBC, BBC 90° V6 Internally Balanced 2 pcs. Rear Main Seal | HP3995X |
| 153 Tooth Chevrolet SFI, SBC 1986-1997 Externally Balanced 1pcs. Rear Main Seal. | HP4001 |
| 168 tooth Chevrolet SFI, SBC, BBC, 90° V6 Internallly Balanced 2 pcs. Rear Main Seal | HP3992 |
| 168 Tooth Chevrolet SFI, 383/400 cu. in. Externally Balanced 2 pcs. Rear Main Seal | HP3993 |
| 168 tooth Chevrolet SFI, Extreme Series (4mm thick) 383/ 400 cu. in. Externally Balanced 2 Piece Rear Main Seal | HP3993X |
| 168 tooth Chevrolet SFI, Mark IV 454 cu. in Externally Balanced 2 pcs. Rear Main Seal | HP3994 |
| 168 tooth Chevrolet SFI, Extreme Series (4mm thick) 454.cu in. Externally Balanced 2 pc Rear Main Seal | HP3994X |
| 168 Tooth Chevrolet SFI, SBC 1986-1997 Externally Balanced 1pcs. Rear Main Seal | HP4000 |
| 168 tooth Chevrolet SFI, Extreme Series (4mm thick) 454 cu in. Gen V & VI 1991-97 Externally Balanced 1 pc Rear Main Seal | HP4002X |
| 168 tooth Chevrolet SFI, Extreme Series (4mm thick) LS Series “Dished” Flexplate, Will NOT replace “Flat” Flexplate on 6.0L w/Extended Crank Flange | HP4004X |
| Same as HP4004X but w/6Lug 4L80E/4L85E Bolt Pat. | HP4004X-EBP |
| Same as HP4004X but with 10.75” & 11.5” GM bolt pattern. | HP4004X-400BP |
| 166 Tooth Pontiac SFI, 326-455 V8 Internally Balanced | HP4007 |
| 166 Tooth Buick SFI, 455 1970-76 Externally Balanced | HP4008 |
| 166 Tooth Oldsmobile SFI, 1957-90 V8 (incl. Diesel) Externally Balanced | HP4009 |
Ford
| Description | Part Number |
| 6 Bolt Crank Mopar, SFI, V8 273 – 440, 10″ & 11″ Converter Bolt Pattern. Requres modification to fit A904 Transmission | HP1452 |
| 8 Bolt Crank Mopar, SFI, 10″ Converter Bolt Pattern | HP1453 |
| 6 Bolt Crank Mopar, OEM, Offset Bolt Spacing, 10″ pattern | HP1456 |
| 6 Bolt Crank Mopar, OEM, Even Bolt Spacing, 10″ pattern | HP1456A |
| 6 Bolt Crank Mopar, OEM, Offset Bolt Spacing, 11″ pattern | HP1457 |
| 6 Bolt Crank Mopar, OEM, Even Bolt Spacing, 11″ pattern | HP1457A |
| Crank Adapter for 6 Bolt Application | HP1491C |
| Crank Adapter for 8 Bolt Application | HP1491C8 |
ƒ For Use with HP1491C Adapter
± For Use with HP1491C8 Adapter
FLEXPLATE & CONVERTER HARDWARE
| Description | Part Number |
| Crank Adapter for LS1 Motor (to adapt non-LS style converter TH350, TH400 ETC.) | HP3795 |
| Torque Converter Mounting Nut & Bolt Kit (3) 3/8″ x .75″ Pro Series 180,000 p.s.i. | HP7453 |
| Torque Converter Mounting Nut & Bolt Kit (3) 7/16″ x .75″ Pro Series 180,000 p.s.i. | HP7454 |
| Grade 8 Converter Mounting Kit (3) 7/16″x20x1″ w/Nuts | HP7455 |
| Grade 8 Conv. Mounting Kit (3) 7/16″x20x1 1/4″ w/Nuts | HP7455A |
| Grade 8 Conv. Mounting Kit (3) 7/16″x20x 1 1/2″ w/Nuts | HP7455B |
| Torque Converter Mounting Nut & Bolt Kit (3) 7/16″ x 1.25″ Pro Series 12pt. Bolt 180,000 p.s.i. | HP7455AP |
| Grade 8 Converter Bolt & Nut Kit (6) for Billet 6 Pad Mount Converter | HP7455C |
| GM Converter Mount Kit (3) Standard OEM Sizing | HP7456 |
| PRO III Converter Shim Kit | HP7457 |
| Chevy Crank Bolts – Early Package of 6 | HP8980 |
| Chevy Crank Bolts – Late (1986-On) | HP8985 |
| Crank to Flexplate Bolts, LS Series Pro Series 12pt. Bolt 180,000 psi | HP8986 |
| Crank to Flexplate Bolt Kit Chevy, Heavy Duty 12pt Bolt | HP8988 |
| Crank to Flexplate Bolt Kit Chevy, Pro Series 12pt Bolt 180,000 psi | HP8989 |