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3.0 Engine Tin

I see in Wayne’s book that there is an additional section of tin that goes on top of the cylinders from 3.0 and later aluminum blocks. I see no mention of using it on a 2.7 magnesium or earlier. What are the benefits or drawbacks to using it on my 2.7?

I bought them fairly cheap, so no loss if it’s a bad idea.
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Rutager West

1977 911S Targa Chocolate Brown

Last edited by rwest; 08-27-2018 at 02:51 PM..
Old 08-27-2018, 02:47 PM
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Here’s a picture of the tin in question- it appears it blocks air at the middle of the cylinder where the fins are smaller.

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1977 911S Targa Chocolate Brown
Old 08-27-2018, 02:53 PM
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I was going to do this same mod to my 2.7. I did not end up using the later upper baffles as the cylinder cooling tins needed to be modified to fit them. I already had my cam towers installed by that time so I didn't want to back track to make them fit. You will need the modify your 2.7 cylinder cooling tins to make them work. I was advised by another member here that it wasn't worth the time so I passed on it.
Old 08-28-2018, 06:11 AM
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Must be a heads up issue, 3.0/3.2 use it but the turbo 3.3 does not.
Bruce
Old 08-28-2018, 11:17 AM
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Thanks for the responses, I think with your experience and the fact that Wayne doesn’t discuss using them on earlier cars that I’ll leave them off.

Best,
Rutager
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Rutager West

1977 911S Targa Chocolate Brown
Old 08-28-2018, 01:16 PM
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So just to report back, I did find the section of the book where Wayne mentions using them- he talks about the tin mods in two sections. The first section dealing with modifications says you can use them on earlier cars, so I went ahead and installed them.

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1977 911S Targa Chocolate Brown
Old 09-02-2018, 10:37 AM
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