Hey Gents,
Eckler has a 74 1.8L exhaust on sale...I have a ‘75 1.8L
Stock, it should fit? Can anyone tell me if it would?
How much difference could there be between a ‘75and a 74 1.8?
Thank you in advance....
Full Version: Exhausted?
I’d check that the 75 doesn’t run thermal reactors or other emission items that may make it different. You might want to check the PET to see if it’s the same part n7mber for both years.
74 and 75 and very different but you can swap one for the other as long as all parts are swapped including heat exchangers and the ducts that bring the heat into the cabin. Muffler connections are totaly different and can't be used without swapping everything.
Basically you will need 1.7/1.8 heat exchangers (2) and muffler - 1974 down.
I don't know if there's a different muffler hanger, but it would also be '74 down.
Other than that it will work fine, but be aware many will say get the 2.0 exhaust for more muffler choices. Some guys really like the quiet-ish 2.0 banana muffler. The 1.7/1.8 exchangers muffler flanges sit higher than on the 2.0, so parts are not interchangeable.
I don't know if there's a different muffler hanger, but it would also be '74 down.
Other than that it will work fine, but be aware many will say get the 2.0 exhaust for more muffler choices. Some guys really like the quiet-ish 2.0 banana muffler. The 1.7/1.8 exchangers muffler flanges sit higher than on the 2.0, so parts are not interchangeable.
The muffler hanger is different as well.
So you would need, from the earlier car:
- Heat exchangers
- Muffler
- Muffler hanger
- Exhaust gaskets
- Heater ducting (S-ducts, J-tubes, flapper valves)
So pretty much the whole exhaust and most of the heating system. But the whole thing will swap over.
--DD
So you would need, from the earlier car:
- Heat exchangers
- Muffler
- Muffler hanger
- Exhaust gaskets
- Heater ducting (S-ducts, J-tubes, flapper valves)
So pretty much the whole exhaust and most of the heating system. But the whole thing will swap over.
--DD
QUOTE(GeorgeRud @ Oct 16 2017, 06:10 PM) 
I’d check that the 75 doesn’t run thermal reactors or other emission items that may make it different. You might want to check the PET to see if it’s the same part n7mber for both years.
Thank you
QUOTE(Dave_Darling @ Oct 16 2017, 09:29 PM)
The muffler hanger is different as well.
So you would need, from the earlier car:
- Heat exchangers
- Muffler
- Muffler hanger
- Exhaust gaskets
- Heater ducting (S-ducts, J-tubes, flapper valves)
So pretty much the whole exhaust and most of the heating system. But the whole thing will swap over.
--DD
Thank you.
QUOTE(Mark Henry @ Oct 16 2017, 07:28 PM)
Basically you will need 1.7/1.8 heat exchangers (2) and muffler - 1974 down.
I don't know if there's a different muffler hanger, but it would also be '74 down.
Other than that it will work fine, but be aware many will say get the 2.0 exhaust for more muffler choices. Some guys really like the quiet-ish 2.0 banana muffler. The 1.7/1.8 exchangers muffler flanges sit higher than on the 2.0, so parts are not interchangeable.
Thank you.
75 & 76 are a log header into a single tube into dual mufflers designed to fit a cat inbetween for smog.
70-74 are long tube headers (better) into a single muffler (stock).
It's only like a 5 hp benefit and 5-10 lbs saved.
70-74 are long tube headers (better) into a single muffler (stock).
It's only like a 5 hp benefit and 5-10 lbs saved.
QUOTE(Chris914n6 @ Oct 17 2017, 01:54 PM)
75 & 76 are a log header into a single tube into dual mufflers designed to fit a cat inbetween for smog.
70-74 are long tube headers (better) into a single muffler (stock).
It's only like a 5 hp benefit and 5-10 lbs saved.
In these any hp gain is almost worthwhile. Backdate the system if you can.
Tangerine.... Your Welcome ;-)
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