Pretty much doubt that, too.
Cars are different length, width.....no way they are close to identical. If they were, the headers would be interchangeable (they're not) driveshafts would be interchangeable (they're not).
As you mentioned, position/dimension/size of gas tank is different.
Don't know who told you that the Pypes SGI10 was '77-'96....but Pypes lists it as a '94-'96 kit.....$550 without
As for a muffler shop charging you $1000 for customized piping....I kinda doubt that. No way for you to really know with YOU
going in for an estimate and finding out first hand.
BTW.....cats versus no cats? You will gain almost nothing by going without cats....and of course, no muffler shop will touch your car if you ain't got 'em....
Been playin' with B-bodies for 19 years.....and I'm still not ALWAYS
right. But I'm pretty sure I'm right on this
Best of luck!
Didn't you scroll the page you just linked to..?
Fits the following:
- 94-96 Impala SS
- 94-96 Caprice sedan w/ 4.3L or LT1
- 94-96 Roadmaster sedan w/ 4.3L or LT1
- 77-90 Caprice and Roadmaster w/ some driver side tailpipes mods
As for the price - Jegs sells the kit for $430 without, and $477 with mufflers.
Well, doubt it as much as you want. That's the price I got quoted (8000-9000NOK, which is $920-$1035).
The stainless price was also a quote.
The shop labor costs in this country are $130-160 an hour.
Why bother buying two new cats for a car that doesn't need them?
In the 70-80's the cats were often removed on import, since all gas stations hadn't gotten unleaded fuel yet.
No shop would ever know if my car had a cat or not, so they wouldn't even blink.
Everywhere I check, it says that the frame and suspension was basically the same from 77-96.
A rear axle swaps right in, but the bolt pattern is larger on 90-96. All suspension parts interchange.
I even read about a guy that cut out the complete floor from a 94 and put into a 79. No basic changes.
The reason why the driveshafts are not always interchangeable would probably be the difference in OD vs non-OD trannys and 8.5 vs 7.5 rear axles (1" difference in axle housing depth).
From what I've read, 94-96 headers will fit a 77-90:
89 header question
BTW, I checked the wheelbase on 77 vs 96 Impala:
Not to push your buttons, but....