Small Block Chevy 383/400 Balance Plate

2 piece rear main seal only.

This plate lets you balance your externally balanced Chevy 383 or 400 engine 2 piece rear main seal only, with a neutral balance 350 manual flywheel or automatic transmission flexplate. 0.100" thick, this gets sandwiched between the crank and flexplate. Road and race tested. Allows use of lighter 350 flywheel/flexplates to rev quicker. May not work on certain flexplates and flywheels with the dished area in the middle. Precision stamped steel, zinc finish.