Ford 4R70W Torque Converters
Performance Torque Converters for Ford 4R70W Transmissions
The Ford 4R70W combines electronically controlled shifting, overdrive capability and performance potential for late-model Ford and transmission-swap applications.
Boss Hog 4R70W torque converters are available for street and performance builds with varying power levels, gearing, tire sizes and vehicle weights.
A properly matched converter should complement both the engine’s powerband and the transmission’s gearing while preserving the drivability expected from an overdrive combination.
Not sure what stall range belongs in your 4R70W build? Let Boss Hog review the complete combination.
Recommended Series
Night Stalker
Street-friendly performance for daily-driven and mildly-modified builds.
Shop the series →Street Bandit
Street & strip converters for cammed engines and weekend racing.
Shop the series →Out Law
Maximum-effort converters for turbo, nitrous and dedicated race combos.
Shop the series →Need Help Choosing the Right Converter?
The right converter depends on the complete vehicle combination, not just the transmission or advertised stall speed.
Not sure where to start?
Use the Stall Speed Calculator , review your Gear Ratio run out with the tire height, or send Boss Hog your build details for a recommendation.
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