Replace your old or rusted heat riser valve with this stock replacement C1 C2 C3 Corvette 1957-1974 Exhaust Heat Riser Valve.
This valve is available in 2 inches or 2.5 inches.
2.5 Inch Option Fits:
- 1962-1965 with High Performance & Special High Performance
- 1966-1968 with 427ci
- 1970-1974 with 454ci
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