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    Dual exhaust pre-made

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    terry cronk
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    Dual exhaust pre-made

    Post  terry cronk on Fri Jun 16, 2017 9:45 am

    There was someone on here awhile back that said they saw a dual exhaust from an earlier Chevelle that fit our B-bodies.

    I would like to know which set of 2.5 will work for my 79 and future dual exhaust. I have the aftermarket cross member.

    The muffler guy I go to can make it, but the bends are not mandrel. I have a 383 being installed.

    Appreciate any info.
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    Kit1078
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    Re: Dual exhaust pre-made

    Post  Kit1078 on Fri Jun 16, 2017 3:20 pm

    64-67 A body kits. I have one from Pypes I picked up cheap (scratch and dent) that I'm working on fitting. The tailpipes on this kit aren't a perfect match, but they look like they'll fit ok with a little coaxing.

    Here's the article I got the idea from:
    https://bangshift.com/general-news/project-cars/buford-t-justice-update-we-install-a-first-generation-chevelle-flowmaster-kit-on-our-9c1-caprice/
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    terry cronk
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    dual exhaust

    Post  terry cronk on Fri Jun 16, 2017 10:29 pm

    That article looks great. I will do some looking to see what I can find.

    Thanks again.
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    Dual exhaust B-Body

    Post  terry cronk on Sat Jun 17, 2017 8:13 am

    I think this is the pipes that are mentioned. I already have a set of 40 mufflers. All this is 2.5".

    http://www.ebay.com/itm/391789160129?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

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    Sweet Seventy9
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    Re: Dual exhaust pre-made

    Post  Sweet Seventy9 on Wed Jun 21, 2017 10:02 am

    Years ago Super Chevy Mag did a Caprice build. They used a kit for a 70-72(?) Monte Carlo.
    IIRC, everything was a direct fit but they had to fab the left rear hanger.


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    terry cronk
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    exhaust for Caprice

    Post  terry cronk on Tue Jun 27, 2017 9:40 am

    Was the headers mentioned in the article?

    What have you used that worked well. Even if you had angled plugs?

    Thanks
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    Re: Dual exhaust pre-made

    Post  Kit1078 on Tue Jun 27, 2017 11:03 am

    these are the headers I'm running:

    https://m.summitracing.com/parts/hok-2451-2hkr

    They are really close to the passenger side frame rail, so I might have to 'adjust' them a bit. I'm running trick flow heads with angled plugs and while these fit, I'm going to have to pull the headers to change spark plugs, but I got the headers for cheap, so I'll live with it.

    GM A body headers usually fit ok, but there will be something that you'll have to clearance most likely. On my first Impala I had to remove the driver's side engine crossmember brace. I don't know if I have to do the same on this car yet, but I'll keep you posted.
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    Re: Dual exhaust pre-made

    Post  Sweet Seventy9 on Tue Jun 27, 2017 11:07 am

    Back in the day we used BlackJack hedders for 2nd Gen F bodys.  The fit was great.  Now-a-days Flowteck makes a set for our cars that fits well but I'm afraid I don't have a part number.

    **EDIT** This might be them but I'm not 100% sure. The part number seems familiar.

    https://m.summitracing.com/parts/big-11500flt


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    headers

    Post  terry cronk on Fri Jun 30, 2017 9:05 am

    I checked out the Flowtech site.

    The 11500 is for Blazers and trucks.

    The 11108(mid-length) is for our body style. Also 16 gauge tubes, equal length.

    The 11100 is for our cars, but won't clear angle plug heads.

    I have the angle plug heads. Also I can use the Accel shorty plugs #0416S-4 (pack of 4)
    Looks like the 11108 is the way to go for me. 2.5 collector w/adapters.


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    headers

    Post  terry cronk on Fri Jun 30, 2017 2:04 pm

    I just found a set of Flowtech #11108 for $89.95/shipped on Ebay.     (flowtech wanted $150.00 + shipping).   They have been scratched a little, but in like new condition.  Ordered immediately.

    Someone tried coating them with high temp/gray spray.  But other than that, ok!  I can fix that.

    We shall see.
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    Dual exhaust

    Post  terry cronk on Sun Aug 06, 2017 6:33 pm

    I just received the 2 pipes for over the rear axle, mandrel bent.  2.5" made for 1964-77 Chevelle.  $120.00 shipped.

    That's by Performance-Curve.  # 6477Chevelle25Pipes. On Ebay.

    My muffler guy said he could make them but would be creased down to 2-2.25" id.  So I made the decision to buy these.

    We'll see how this goes next week when the exhaust is installed.
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    Re: Dual exhaust pre-made

    Post  Kit1078 on Mon Aug 07, 2017 10:02 pm

    On the pypes kit I have, I had to cut the tailpipes in 3 places and weld them back together to fit properly. Granted, I'm not /overly/ enthusiastic about the kit, but I got it cheap, so oh well. The over axle arch would hit the spring or the control arm, or both. They look like they were bent for a car where the spring sits in front of the axle, like the 64-67, rather than on top of the axle like the later A and B bodies.
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    Dual pipes

    Post  terry cronk on Mon Aug 14, 2017 2:33 pm

    As I and my muffler shop found out today the same issue.

    The rear over the axles hit the upper control arms and the X-pipe hung too low.

    So the muffler guy will make a complete set w/H pipe connecting the two 2.5 pipes. Over the axle.

    Starting this morning. $$$$$$$$.
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    exhaust

    Post  terry cronk on Wed Aug 16, 2017 7:22 am

    I got the car back today. Sounds good and everything is fitted up snug and hidden.

    Now to go to my transmission guy for a final adjustment on the cable and the governor. All under the warranty by him.


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    Re: Dual exhaust pre-made

    Post  Z77impala on Mon Dec 04, 2017 11:54 am

    i have a complete flowmaster 3 inch kit that was Originally for 68-72 chevelle. only had to make a couple minor mods, like hangars and chopping a few pieces, but no re-welding of sections. its tucked up nice and i hardly ever scrape, even being lowered about 2 inches

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