The TCI Premium Series Flexplate is an upgraded replacement for factory units on externally balanced Big Block Chevy 454 engines. It has a 168 tooth ring gear, a 10.75 inch bolt pattern, seven crankshaft holes and six torque converter holes. A premium finish resists corrosion from salt and road grime, and each unit is spin balanced for vibration-free operation.
- Fits GM Big Block Chevy 454, externally balanced
- 168 tooth ring gear
- 10.75 inch bolt pattern
- 7 crankshaft holes
- 6 torque converter holes
- Corrosion-resistant premium finish
- Spin balanced
- Part number: 399604
FAQ
What engine does the 399604 flexplate fit?
It fits externally balanced GM Big Block Chevy 454 engines.
What is the tooth count and bolt pattern?
It has a 168 tooth ring gear and a 10.75 inch bolt pattern.
How many mounting holes does it have?
It has seven crankshaft holes and six torque converter holes.

