SFI Approved and Heavy Duty Flexplates

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SFI Approved and Heavy Duty Flexplates 2016-12-05T21:27:10+00:00

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