Hays heavy-duty flexplates for Ford 385-Series high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays flexplate handles the force.

These flexplates are supplied with a ring gear that is securely welded in place. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

Features and Benefits:

• Constructed of 0.035 inch thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM enginge
• Securely welded ring gear and zinc dichromate plated to resist rust and corrosion.
• Meets SFI specification 29.1 for racing
• Forged 1-piece steel ring gear

Details:

• Application: Ford
• Center Bore (Register Diameter): 2.500 Inch
• Emission Code: 5
• Engine: Ford Big Block
• Engine Balance: Internal
• Material: Steel
• Number of Teeth: 164
• SFI Approved: Yes
• SFI Certification: 29.1
• Warranty: Manufacturer's 90 Day Warranty

Application Summary:

• 510 1969-1974 Ford Country Sedan Base
• 1970 Ford Fairlane 500
• 1970 Ford Falcon Base Futura
• 1969-1974 Ford Galaxie 500 Base XL
• 1969-1974 Ford Ranch Wagon Base Police Cruiser
• 1969-1972 Ford Custom Base
• 1969-1974 Ford Country Squire Base
• 1969-1978 Ford LTD Base Brougham Landau Country Squire
• 1969-1976 Ford Custom 500 Base
• 1978 Ford E-100 Econoline Base Chateau Custom Northland
• 1975-1978 Ford E-250 Econoline Northland Chateau Base Custom
• 1975-1978 Ford E-250 Econoline Club Wagon Custom Base Chateau Northland
• 1975-1978 Ford E-350 Econoline Custom Northland Base Chateau
• 1977-1978 Ford E-350 Econoline Club Wagon Base Chateau Northland Custom
• 1975-1976 Ford Elite Base
• 1973-1977 Ford F-100 Base Northland Ranger Custom Ranger XLT XLT
• 1975-1978 Ford F-150 Custom Ranger XLT Northland Ranger Base XLT Ranger Lariat
• 1973-1978 Ford F-250 Base Ranger Northland Ranger XLT Custom XLT Ranger Lariat
• 1973-1978 Ford F-350 Base Ranger Northland Custom Ranger XLT XLT Ranger Lariat
• 1972-1976 Ford Gran Torino Base Squire Sport Brougham Elite
• 1969-1971 Ford Mustang Base Boss 429 Mach 1 Grande
• 1970-1977 Ford Ranchero Squire 500 GT Base
• 1968-1976 Ford Thunderbird Base
• 1970-1976 Ford Torino Base Cobra GT Squire Super Cobra Jet Brougham 500
• 1968-1971 Lincoln Mark III Base
• 1968-1978 Lincoln Continental Base
• 1972-1976 Lincoln Mark IV Base
• 1977-1978 Lincoln Mark V Base
• 1969-1974 Mercury Monterey Base Custom
• 1969-1971 Mercury Cyclone Base Spoiler CJ GT
• 1969-1974 Mercury Colony Park Base
• 1975-1978 Mercury Grand Marquis Base
• 1969-1976 Mercury Cougar Boss 429 XR-7 Base Cobra Jet
• 1969-1970 Mercury Marauder X-100 Base
• 1969-1978 Mercury Marquis Base Brougham Colony Park
• 1970-1976 Mercury Montego MX Brougham MX Base Villager GT Brougham MX Villager
• 1900 Car Ford Big Block Ford Applications