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Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit
Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit

Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit

Ford Flathead V8, TKO, 5-Speed Transmission Speeds, 500 ft./lbs. Torque

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Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit
Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit
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We estimate this item will ship on or before January 1st.
Part # 91028908
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Transmission Speeds:
500 ft./lbs.
Input Shaft Spline Count:
Output Shaft Spline Count:
Bellhousing Included:
Yoke Included:
Shifter Included:
Gear Ratio (Reverse):
Gear Ratio (1st):
Gear Ratio (2nd):
Gear Ratio (3rd):
Gear Ratio (4th):
Gear Ratio (5th):
MFG. Part #:
Sold in Quantity:


This all-in-one kit is designed to adapt the versatile TREMEC TKO-500 transmission to your 1949-53 Ford Flathead engine. Serving up 500 lb-ft of torque capacity, along with confidence-inspiring shifts and fuel-saving overdrive, the TKO offers an ideal blend of brute strength and street manners. This kit includes everything you need for installation*.

  • Sold as a complete conversion kit
  • TKO overdrive transmission to 1949-53 Flathead
  • .68 overdrive 5th gear for smooth cruising on the highway
  • *See note below regarding 1949-53 OEM 3" adapter
  • 24.07" Casting length from tranmission front face to tail

Kit Includes:

  • TREMEC GM TK-500 5-speed overdrive manual transmission (91029027)
  • GM Manual Transmission to Flathead V8 adapter (91628912)
  • Flathead clutch release bearing (91025620)
  • Release bearing adapter (91629517)
  • Pilot bearing (91629520)
  • Flathead 10-1/2" long style clutch pressure plate 910-15635
  • Flathead 10" clutch disc (91015644)
  • Flathead clutch release fork (91675150)
  • Flathead clutch shaft release pin (91675151)
  • Flathead clutch release shaft (91675101)
  • Clutch release spring (91675152)
  • Flathead steel flywheel (91015629)
  • ARP flywheel bolts (1012002802)
  • ARP pressure plate bolts (1011502201)

Note:  Flywheel provided in this kit is for the 1949-53 Ford Flathead engine application. The 1949-53 engine application will require this kit to utilize the OEM 3" adapter bellhousing (to be provided by the installer - not currently available from Speedway Motors).

TKO-500 Illustrated Parts Manual (PDF)

TKO-500 Service Manual (PDF)

TKO-500 Installation Tips (PDF)

916-28912 Instructions (PDF) 


Transmission Specs:

  • Tremec # TCET4616
  • 500 lb.-ft. torque capacity
  • Speedo Type - mechanical or electric
  • Spline Count - 26 Input, 31 Output
  • Gear Ratios - 3.27, 1.98, 1.34, 1.00, .68, Reverse 3.00
Some parts are not legal for use in California or other states with similar laws/regulations

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What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • TREMEC TCET4616 GM TKO-500 5-Speed Overdrive Manual Transmission
    Qty x 1
  • Speedway GM Manual Trans to Flathead V8 Adapter, Ford Clutch
    Qty x 1
  • Speedway 1935-48 Ford Flathead V8 Clutch Release Bearings
    Qty x 1
  • Release Bearing Adapter, Flathead to GM T-5
    Qty x 1
  • Pilot Bearing, GM Transmission to Flathead
    Qty x 1
  • Flathead 10-1/2 Inch Long-Style Clutch Pressure Plate
    Qty x 1
  • Flathead 10 In Clutch Disc, 1-1/8 In 26-Spline, GM, T-5 Transmission
    Qty x 1
  • 1932-48 Ford Flathead Clutch Release Fork, 85, 90, and 95 HP Cars
    Qty x 1
  • 1928-48 Ford Flathead Clutch Shaft Release Pin
    Qty x 1
  • 1940-48 Ford Flathead Clutch Release Shaft
    Qty x 1
  • 1935-52 Ford Internal Clutch Release Spring, Bearing Hub
    Qty x 1
  • Speedway 1949-1953 Ford Flathead V8 Billet Steel Flywheel
    Qty x 1
  • ARP 200-2802 Chevy Flywheel Bolts
    Qty x 1
  • ARP 150-2201 Ford 289-460V8 Pressure Plate Bolt Kit
    Qty x 1
  • Bolt Kit Conversion for T5
    Qty x 1

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