Bellhousing
Factory and UltraBells are available in all production bolt patterns.
Flexplate / Flywheel
Flywheels / Flexplates are available from various manufacturers.
Clutch Packs
In most cases, additional clutches can be added without machining. This is accomplished through the use of specialized plates, frictions, and steels.
Six clutches can be added to both the forward and direct drums.
Steels / Plates
BPT offers steels in thin, standard and extra-thick widths. Steel rings can be modified for additional oil lubrication.
Specialized plates can be ordered for modified clutch packs
Friction Clutches
All clutch packs use Raybestos standard, HIPO red, and HIPO blue clutches.
Low Ratio Gear Sets
BPT offers a low ratio gear set for added performance. All low ratio sets are fully rollerized. The components are made of lightened steel. The reverse low drum and direct drum is available in 70/75 T6 Aluminum.
The table below shows the various gear ratio combinations available. Figures in grey show the affect of adding a 20% (first column) or 30% (second column) V2OD overdrive unit.
Model Type Gear Ratio V2OD
TH350 Stock 2.52 1.52 1.00 0.80 0.70
TH400 Stock 2.48 1.48 1.00 0.80 0.70
TH350 Ratio1 2.75 1.57 1.00 0.80 0.70
TH400 Ratio2 2.75   1.00 0.80 0.70
TH400 Ratio3 2.10   1.00 0.80 0.70
Rollerized Transmissions
BPT replaces all stock thrust washers with rollerized torrington bearings.
Additionally, the reverse drum, upper planet and drive shell are lightened. The upper planet is remachined.
70/75 T6 Aluminum direct and forward drums are available on request
Sprags
Heavy duty and Borg-Wagner sprags available.
Input Shaft
These TH350 and TH400 shafts, manufactured from billet Vasco steel, are virtually unbreakable.
Factory replacements are also available.
Custom Valve Body
For both the TH350 and TH400, BPT offers customized street / strip, manual reverse, manual forward, and trans brake valve bodies.
Dipstick Tubes
BPT manufactures new dipstick tubes for all applications.
Transmission Pump
BPT can recondition and resurface your pump.
Torque Converter
Torque converters can be custom fabricated to suit your individual needs.
New converters are available in all sizes.
Your current torque converter can be rebuilt by BPT.
Block Plates
Can be custom fabricated upon request.
Overhaul Kits
Custom tailored overhaul kits are available for purchase.
BPT 2010
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