Sonnax forged steel converter piston plate CH-DA-7PB for Chrysler 10" lockup converters is machined from a steel forging, allowing the wall thickness to be increased in critical areas and making for a less flexible and more durable piston.
It is difficult to bond a friction ring to a cover because it takes a long time to heat up the cover to the proper bonding temperature. Many rebuilders have opted to bond the friction ring to the piston instead. This piston is designed with the proper bonding surface instead of the smooth reaction surface that the OE piston has. The CH-DA-7PB piston is also designed for a .045" thick friction ring, not the factory .070" rings. See instructions for easy assembly.

Increased wall thickness for greater stiffness
Clutch surface designed for bonding .045" thick friction rings
Requires salvage and use of the OE spring retainer damper

More From This Category

Cast Piston

Cast Piston

$92.49

COMP Cams Camshaft, Xtreme Marine, Hydraulic Flat, Advertised Duration 288/304, Lift .570/.575, For Chevrolet Big Block 396-454, Each

COMP Cams Camshaft, Xtreme Marine, Hydraulic Flat, Advertised Duration 288/304, Lift .570/.575, For Chevrolet Big Block 396-454, Each

$591.41

MANLEY Piston, 1.520 in. Compression Distance, 4.600 in. Bore Size, Flat Top, For Chevrolet BB, Each

MANLEY Piston, 1.520 in. Compression Distance, 4.600 in. Bore Size, Flat Top, For Chevrolet BB, Each

$219.04

Motive Gear Getrag 4X4 Rear Seal, Each

Motive Gear Getrag 4X4 Rear Seal, Each

$13.22

QA1 Quick Disconnect Ball Joint, 10-32

QA1 Quick Disconnect Ball Joint, 10-32

$7.78

TCI Torque Converter, Super StreetFighter, 1.85 in. Pilot, For Ford, C-6, Each

TCI Torque Converter, Super StreetFighter, 1.85 in. Pilot, For Ford, C-6, Each

$1,659.53