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shanghai_todd 12-03-2006 07:50 PM

930 Convertion Question
First off this is my first post and I am glad to find such a great site with such knowledgeable people. So my question is this, I have been reading many post regarding the conversions of non-turbo 911”s to turbo’s and want to know if the exhaust headers and turbo piping from a 1978 3.3 turbo model will bolt up to a 1981 3.0 engine? I read that the 1976/77 3.0 will but was curious about the 3.3.

Also should mention that my car is CIS but would be considering FI before performing any turbo work.

beepbeep 12-04-2006 04:47 AM

3.3 cylinder heads have somewhat different exhaust port design, as headers have pronounced "lip" that goes into the head to help sealing. Other from that, I believe it should fit OK.

In worst case, you will be forced to cut the flanges and weld new ones fitting SC heads.

shanghai_todd 12-04-2006 10:03 PM

Thanks, I have also checked with the guy selling the 3.3L headers and exhaust and he is also pretty sure that it will bolt up.

shanghai_todd 12-04-2006 10:12 PM

BTW, here are some pictures of the exhaust system I been looking at, DAMN these header look sexy :)

paslantnose 12-05-2006 02:29 AM

Are you bidding on these?

shanghai_todd 12-05-2006 03:42 AM

No, I think I am going to hold off. They look great and probably will put out some great HP increases but I still want to be able to have heat..

Here is the link if you are intested. There is still 1 day left. AUS%3A1&viewitem=&item=300055163673

WydRyd 12-05-2006 01:35 PM

I have those exact same headers on my car and they are simply awesome, especially with the ball-bearing turbo & Magnaflow Muffler. I got mine for $750, including new oil line & shipped to my door in AUSTRALIA :cool:

shanghai_todd 12-05-2006 09:28 PM

WydRyd, what type and size turbo you running?

WydRyd 12-06-2006 02:24 PM

Garrett GT35R ball-bearing unit... 0.78A/R divided inlet turbine HSG w/V-band discharge. For a 3.0, like yours, I'd highly recommend the GT30R for sure ;)

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