[C2] Heat riser or spacer?
Thread Starter
Pro
Joined: Oct 2008
Posts: 703
Likes: 138
From: NH
2023 Corvette of the Year Winner - Unmodified
2022 C2 of the Year Winner -- Unmodified
Heat riser or spacer?
I have a question. Im going to replace my exhaust heat riser valve on my 435/427 engine. Currently it has the flapper removed but I want to replace the exhaust donut gaskets so I thought I would replace the heat riser with a new one from Paragon. My question, should I replace it with the original valve or a spacer? I don't use the car in the winter so heat really not an issue. Is there any advantages other then quicker heat in the vehicle? Any recommendations?
Thanks
ED
Thanks
ED
Drifting
Joined: Nov 2004
Posts: 1,508
Likes: 678
From: Folsom Ca
I replaced mine with a spacer. I noted carbon ( exhaust leak) from the shaft on mine. I am in a warm climate, with a non-original carb, so I didn’t see the need or benefit of forcing hot air into the intake, although I am pretty sure the crossover has not been blocked off.
