1980-1981 Exhaust Heat Riser with Vacuum Valve - OEM Number(s) (5233666)
The Heat Riser is used to warm up the intake manifold of your Corvette during cold weather driving. It allows exhaust gasses to flow under the intake manifold, letting the engine warm up.
Also known under these part numbers: (For reference only)
- 10022222
- 323002
- 4304
- 5233666