Product Summary

C4, Three Number of Gears, Torque Converter Included

  • Handles up to 550 horsepower making this transmission perfect for most small block Ford equipped street vehicles
  • 2200-2400 rpm stall 12" torque converter
  • Firm, crisp shifts from Kevlar bands and H.D. clutches
  • Street/Strip Valve Body - everyday street driving and weekend trips to the drag strip
  • Billet 6061 T6 Aluminum Pro Shift Servo - extends clutch and band life

Key Specs

MFG. Part #57426101
BrandSpeedway Motors
Flexplate IncludedNo

Need To Know

Truck Ship

Truck shipments must be pre-paid with a credit card, certified check or money order

Quick and Easy Returns

Return Policy

Speedway Motors 57426101 Details

Speedways Street King Ford C4  transmissions are completely remanufactured with heavy duty clutches, special shift kit, and 12" torque converter. Street King C4 transmissions are rated to 550 hp, so theyll work great behind your high-output 289, 302, or 351W small block.

Speedway Street King C4 transmission features:

  • Handles up to 550 HP
  • 2200-2400 rpm stall 12" torque converter
  • Firm, crisp shifts from Kevlar bands and H.D. clutches
  • Street/Strip Valve Body - everyday street driving and weekend trips to the drag strip
  • Billet 6061 T6 Aluminum Pro Shift Servo - extends clutch and band life
  • Improved Lubrication Circuits - reduced heat/prolonged life
  • Requires a 164-tooth flexplate (not included). Transmission has a one year warranty.
  • Includes hard pan fill dipstick with a locking top.

NOTE: Must also purchase block plate listed for proper torque converter engagement. 

Charts

Specs

  • Block Plate Thickness:  .060"

Speedway Motors 57426101 Specifications

KEY SPECS
MFG. Part #57426101
BrandSpeedway Motors
Flexplate IncludedNo
GENERAL
Number of GearsThree
Transmission Advertised Horsepower Rating550
Torque Converter IncludedYes
Torque Converter Diameter12"
Advertised Flash Stall Rating2,200-2,400 RPM
Transmission Pan MaterialSteel
Transmission Pan FinishChrome
Dipstick IncludedYes
Sold in QuantityEach

Ratings & Reviews

4.1

8 Reviews

Customers say

Customers appreciate the C4 transmission for its top-tier performance, seamless fitment, and effortless install. Ideal for everyday use, many have achieved their best times using this product. The included shift kit and stall converter are highly praised, while the transmission's ability to handle up to 450 hp (as confirmed by the manufacturer) adds reliability. Some users found some quality-control issues, but the overall sentiment is positive, with many recommending the C4 transmission for its key qualities over competitors. Its affordable price is also considered a major win among users.