The XP4 is the strongest and most durable Powerglide transmission currently available throughout the entire aftermarket. We rate this unit for use with applications producing 3,000+ horsepower. This transmission is responsible for putting the power down to the tires in the first ever 3-second nitrous Pro Mod car, and is currently in use by multiple Pro Mod, Top Sportsman, ADRL Pro Nitrous, Outlaw 10.5 teams, as well as several professional Monster Truck teams, etc. This transmission is suitable for use in any extreme duty application requiring the very best in a competition Powerglide, from 5-second Pro Mod's to monster trucks to 6-second Outlaw 10.5/Drag Radial cars and beyond. The XP4 has the following features:
-Reid/Hughes Performance SFI-approved transmission case
-Double roller bearing heavy duty extension housing
-Huge 1.25" billet input shaft
-Billet aluminum high output front pump w/bolt-in heavy duty chromemoly steel stator support
-Pro Mod 10-clutch drum
-Billet steel clutch hub
-Extra wide proprietary Pro Mod high static band
-Your choice of 1.69 or 1.80 billet 9310 steel planetary assembly with straight-cut gears
-Special carburized and case hardened planetary axles
-Oversize extreme duty 32-spline output shaft and carrier assembly
-Pro Series fluid release transbrake valve body with oversize rebuildable solenoid (fastest in the industry)
-Deep aluminum pan (holds 2 extra quarts of fluid)
-Billet dual-ring servo assembly with billet cover and custom calibrated spring
-Full roller bearing construction
-Custom heavy duty governor support
-Forged and hardened band adjuster pin
-High flow filter
-Each unit receives a comprehensive dyno test
This transmission is available in short, medium, and standard length configurations, all at no extra cost. Short versions feature a billet rear cover, and medium versions feature a special medium-length billet extension housing, which is ideal for use in suspended dragsters or very short wheelbase chassis that still utilize a driveshaft.
Short part number: 28-4XP4-69B2D or 28-4XP4-80B2D
Medium part number: 28-4LXP4-69B2D or 28-4LXP4-80B2D
Long part number: 28-3XP4-69B2D or 28-3XP4-80B2D
We offer the XP4 with bolt-on bellhousings for use with Chevrolet, Chrysler, Ford, Buick, Olds, and Pontiac applications, which eliminates the need for unnecessary and poorly fitting adapter plates between the engine block and transmission.
The XP4 is designed to use one of our custom built torque converters. We currently offer 9.5”, 10”, and 10.5” designs specifically for use with our XP4 transmission. Build features of each converter include the following:
-CNC-machined billet steel front cover
-CNC-machined billet aluminum stator
-Billet steel turbine spline
-Precision ground billet chromemoly steel pump hub
-Fully furnace brazed and reinforced turbine assembly
-Fully furnace brazed and reinforced impeller assembly
-Full roller bearing construction
-Extreme duty sprag, mechanical diode, and spragless options available on 9.5” and 10” models
-Extreme duty sprag and spragless options available on 10.5” model
Cost on the XP4 in any length configuration is $6,995.00.
Converter pricing breaks down as follows:
-GM97, 9.5” model, $1,962.52 with sprag or spragless
-GM97MD, 9.5” model with diode, $2,237.52
-GM103, 10” model, $1,962.52 with sprag or spragless
-GM103MD, 10” model, $2,237.52
-GM105, 10.5” model, $1,962.52 with sprag or spragless
-GM107, 10.5” model, $2,112.52 with sprag or spragless
Each torque converter is custom designed and built specifically for each customer’s application. Please contact Hughes Performance for consultation on which converter design is best suited for your application.
If you want the best, most reliable, durable, and consistent racing transmission available, you want Hughes Performance!
Business Phone Number:
800-274-7223, ext. 209 Business Phone Number2:
(602) 889-3621 This item is NEW
Trades NOT ACCEPTED
PHOENIX, AZ Get Directions To This City Instructions for buyer: MENTION THIS RACING JUNK AD WHEN PLACING YOUR XP4 ORDER AND RECEIVE FREE GROUND SHIPPING WITHIN THE CONTINENTAL UNITED STATES!
PLACE AN ORDER FOR AN XP4 AND A GM105 OR GM107 TORQUE CONVERTER, AND RECEIVE A 10% DISCOUNT ON THE TORQUE CONVERTER!
Be sure to ask about our custom powdercoating options for your XP4 transmission case, as well as our GM105 and GM107 billet XP4-series 10" torque converters!
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