Exhaust heat riser - Impala Tech
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post #1 of 4 (permalink) Old 12-30-2016, 08:53 AM Thread Starter
Join Date: Nov 2016
Posts: 10
Exhaust heat riser

Right then, no doubt this has been covered many times on the forum and I apologize if it has but I intend to fit a new twin exhaust soon from a single system on my 1963 327 V8 and would like to know do I really need this heat riser. I have done a quick Google search and people say keep it others get rid so just would like some honest advice here. By the way mine chatters once engine is warm so no doubt not working anyway. Thanks.

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post #2 of 4 (permalink) Old 12-30-2016, 09:48 AM
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Location: virginia
Posts: 244
It is not necessary. It helps the engine warm up a little quicker. Depending on how you intend to do your exhaust, if you delete it, you may need a 'spacer' to take up the space it occupies.
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post #3 of 4 (permalink) Old 12-31-2016, 07:16 AM
Join Date: Dec 2015
Location: Lansdale, PA
Posts: 36
I left my heat riser in place but disabled it by bending the last part of the spring the opposite way. This saved my from having to buy a delete spacer.
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post #4 of 4 (permalink) Old 12-31-2016, 10:16 AM
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For thirty bucks you can buy a spacer without a hole to support the shaft and blade that is still obstructing the exhaust flow on one side.

1964-81 Chevrolet Small Block Exhaust Heat Riser Spacer

Big Dave
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