 Heat exchanger differences |
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| faster48 |
 Jun 12 2007, 09:07 PM
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#1
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Newbie  Group: Members Posts: 47 Joined: 6-October 06 From: Spring City, PA Member No.: 7,001  |
Will a set of early 1.7/1.8 exchangers work on a 75 1.8? What are the differences?
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| TROJANMAN |
Jun 12 2007, 09:21 PM
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#2
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Looks nice in pictures......... Group: Members Posts: 5,271 Joined: 5-March 04 From: Colorado Member No.: 1,753 Region Association: None |
yes
The older exchangers are less restrictive. You'll need a matching muffler too (IMG:style_emoticons/default/wink.gif) |
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| AZ914 |
Jun 12 2007, 10:59 PM
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#3
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914 Dumbass Group: Members Posts: 1,459 Joined: 6-January 03 From: Sunny Tucson Member No.: 98 Region Association: Southwest Region |
Keep in mind that the entire (from the flapper boxes out) exhaust on the 75/76 models is different. If you backdate the heat exchangers, you will need the 73-74 J-pipes, s-pipes, muffler and muffler hanger.
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| rhodyguy |
Jun 13 2007, 09:12 AM
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#4
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,082 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
the 2 warm air elbows are required also. don't forget new copper o-rings and 8 NEW exh stud nuts. the 75-76 hes are a real pain to remove. soaking the all the fasteners (repeatedly) with pb blaster or aerokroil for a minimum of 24 hours will make the removal much easier. have a gentle hand on the exhaust stud nuts. when i tired of fighting the old piping, i broke out the sawsall and grinder with a couple of cutoff wheels.
k |
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| IanStott |
 Jun 13 2007, 02:09 PM
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#5
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Member Group: Members Posts: 226 Joined: 13-June 04 From: Moncton,New Brunswick,Canada Member No.: 2,199 |
I spent a few days getting my exhaust studs out, I just kept spraying the penetrating fluid and working at them, I was scared to death I was going to break one off so I was real gentle and had good luck, none broke off. Now I need new ones and this post reminded me. Where's the best place to get them?
Ian Stott Moncton Canada |
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| rhodyguy |
Jun 13 2007, 02:13 PM
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#6
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,082 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
from mark henry? a fellow canadian. ian check the stud sizes before you purchase. both ends should be similar in size. if one end is thicker you'll need the step up studs.
k |
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| IanStott |
Jun 13 2007, 10:23 PM
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#7
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Member Group: Members Posts: 226 Joined: 13-June 04 From: Moncton,New Brunswick,Canada Member No.: 2,199 |
Do you mean Mark who hosted the porsche fest in Ontario?
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| faster48 |
Jun 14 2007, 07:30 PM
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#8
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Newbie Group: Members Posts: 47 Joined: 6-October 06 From: Spring City, PA Member No.: 7,001 |
I'm not sure I need all the extra work. I guess I'll look for the right year exchangers. Thanks for the help gentlemen!
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| rhodyguy |
Jun 15 2007, 11:57 AM
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#9
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,082 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
back dating to either the 1.7/1.8 2.0 is one hell of a lot eaiser than sourcing and installing the 75/76 version. limitations to the exhaust choises staying 'correct'. post a want to buy on ALL of the j-tube/warm air elbow/branch pieces from 1 person. buying a piece here and a piece there kills you on the shipping costs...should run you around $80 in parts for nice stuff. perhaps less. earlier version heat exhangers should run $100+ for fair oem 1.7/.8s to $500+ for a good set of stainless 2.0s.
k |
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| 914nerd |
Jun 15 2007, 12:43 PM
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#10
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Who you callin' a "Member"? Group: Members Posts: 416 Joined: 18-July 06 From: Los Alamos, NM Member No.: 6,461 |
I have a set of late style HEs (actually the full system, basically) that I just pulled off a car in favor of some KH headers
PM me if you're interested Charles |
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| Pat Garvey |
Jun 15 2007, 08:24 PM
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#11
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Do I or don't I...........? Group: Members Posts: 5,899 Joined: 24-March 06 From: SE PA, near Philly Member No.: 5,765 Region Association: North East States |
QUOTE(rhodyguy @ Jun 15 2007, 11:57 AM)  back dating to either the 1.7/1.8 2.0 is one hell of a lot eaiser than sourcing and installing the 75/76 version. limitations to the exhaust choises staying 'correct'. post a want to buy on ALL of the j-tube/warm air elbow/branch pieces from 1 person. buying a piece here and a piece there kills you on the shipping costs...should run you around $80 in parts for nice stuff. perhaps less. earlier version heat exhangers should run $100+ for fair oem 1.7/.8s to $500+ for a good set of stainless 2.0s. k Interesting. A brand new, unused set of 2.0 SSI's didn't take a single bid last week on eBay, with the start set at $450. Brand new, never mounted! Almost wished I'd needed them, but my SSI's have lasted 32 years with no signs of fading. Someone missed a bargain. |
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| rhodyguy |
Jun 16 2007, 09:32 AM
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#12
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,082 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
unused/never installed for $450 and 0 bids is a bit weird. sort of the wrong time of the year i guess. folks are prob not too worried about heat. a person might have been able to flip them for a tidy profit during the next 'project season'. i never look for items on ebay. i'm surprised a large parts house didn't scoop them up.
k |
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