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Old 10-02-2006, 10:37 PM   #1 (permalink)
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what do u sbc guys run for exhuast?

ok well both sides snapped off at the header flange last weekend at paragon so now i need to do the exhaust correctly so it doesnt happen as easily again, who makes a good shorty or block hugger header for a SBC in a YJ?? i had FM 40s on it but they just got beat to shit cuz they are huge, what do u run for mufflers? i was thinkig just straight pipes to just past the t-case but not sure how loud that would be
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Old 10-03-2006, 12:53 AM   #2 (permalink)
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You'll find out all about ram's horns and running 2 into 1 via a "Y" pipe.
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Old 10-03-2006, 12:54 AM   #3 (permalink)
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I hated all my headers on my SBC. I run stock ram horns now. But I am willing to give up the little hp that it gives me. The ram horns are much smaller and easier to make your own exhaust tight and up higher too.
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Old 10-03-2006, 07:42 AM   #4 (permalink)
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I'm running a set of Hedmann conversion headers, work fine for me. Short, rear dump, and super easy to fab my own exhaust the rest of the way back, all above frame level. Running 2-1/4" pipes with bullet style mufflers (not glasspacks), exiting out the rear with turndowns.
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Old 10-03-2006, 08:04 AM   #5 (permalink)
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i found these, will they work for my application??

http://www.holley.com/2300HKR.asp
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Old 10-03-2006, 10:28 AM   #6 (permalink)
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everyone i know with headers has major leak issues. stick some manifolds on there that fit where you want them to dump, then go to the local exhaust shops after they close. a lot of times they leave all kinds of scrap lengths and bends outside for garbage. weld it. done.
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Old 10-03-2006, 11:16 AM   #7 (permalink)
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Another vote for RAM horns, and crossover pipe-run single exhaust-one less muffler and pipe to bend. You can get the corvette ram horns that have a 2.5" mouth instead of 2.0". But-we are not building racecars or diesel pulling trucks-exhaust diameter is not important as people think unless you get under the 1.75/2" range and crimp it shut on a rock.
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Old 10-03-2006, 11:38 AM   #8 (permalink)
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Hooker Blockhuggers and custom made exhaust using 2.5" U bends. On a CJ but you get the idea







A pic of the headers

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Old 10-03-2006, 11:56 AM   #9 (permalink)
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Stock manifold. Drivers side comes down and goes inbetween the oil pan and where the tranny bolts up.. Kept it up as high as possible and then meets into the pasagers side and that then goes into a single chamber flowmaster.
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Old 10-03-2006, 12:08 PM   #10 (permalink)
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LT1...Edelbrock headers into a combo of stock/custom Ypipe into a single 3" Flowmaster.
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Old 10-03-2006, 01:38 PM   #11 (permalink)
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I've seen a couple mentions in searches of people using a '66 chevy c10 application for a y pipe from napa... anyone here have any first hand experience and/or pics of this installed?

I'm running shorty headers witha 2" crossover, into a 2-1/2" single exhaust to a flowmaster. I haven't run this rig on the trail yet, but the underhood heat is a big enough issue that I am going to swap out the headers for a set of rams horns and reconfigure my crossover pipe.
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Old 10-03-2006, 01:59 PM   #12 (permalink)
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I have been running Hooker blockhuggers for several years now. However, after several trail runs since I put in new poly motor mounts on my AA cradle, I have noticed that the poly is melting.

Now, I am thinking about changing over to ram horns in order to get rid of some of the heat.

For those running ram horn manifolds in a Jeep, are there any fitment issues with the center dump type, or are the 45 degree rear dump type a better fit for the application? I figure the straight down center dump type will be easier to modify to replace my current blockhuggers, which dump straight down.
I will be using MORE bombproof weld on motor mounts when I redo my exhaust if that makes a difference.
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Old 10-03-2006, 02:05 PM   #13 (permalink)
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I run Summit Racing block huggers. I run a 2.25" (I think, I had it done by a shop) pipe under the oil pan from the pass side that joins up to the driver side and then turns into a single 2.5" out through a Flowmaster 50. My headders are wrapped and I havent had any issues with melting poly engine mounts, heat killing my starter or exhaust leaks as of yet.
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Old 10-03-2006, 02:13 PM   #14 (permalink)
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Quote:
Originally Posted by yjw/350
ok well both sides snapped off at the header flange last weekend at paragon so now i need to do the exhaust correctly so it doesnt happen as easily again, who makes a good shorty or block hugger header for a SBC in a YJ??
I love how guys get their first taste of how crappy headers are, and ask what kind of headers will solve their problem.
That's kind of like falling asleep and hoping that the ugly woman sleeping next to you will be beautiful when you wake up in the morning.
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Old 10-03-2006, 05:32 PM   #15 (permalink)
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Quote:
Originally Posted by LilRocky
I love how guys get their first taste of how crappy headers are, and ask what kind of headers will solve their problem.
That's kind of like falling asleep and hoping that the ugly woman sleeping next to you will be beautiful when you wake up in the morning.
Won't disagree that the cheapy headers will always be a problem but there are quality shorty headers out there that (when installed properly)will seal every bit as well as a cast manifold. They are usually twice the cost but as with everything else on your rig YGWYPF.
Also agree that the woman will not get better looking regardless of the level of hoping. I just divorced her and upgraded to a newer more cosmetically pleasing model.
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Old 10-03-2006, 05:42 PM   #16 (permalink)
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I also hate headers offroad. I run the Corvette manifolds, love em.
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Old 10-03-2006, 07:14 PM   #17 (permalink)
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Quote:
Originally Posted by jesster
I have been running Hooker blockhuggers for several years now. However, after several trail runs since I put in new poly motor mounts on my AA cradle, I have noticed that the poly is melting.
I also have Hooker blockhuggers and I also melted a few sets of poly mounts on the AA cradle. So did another guy I wheel with who has these headers and motor mounts. I eventually changed to the AA weld-on style mounts (needed to raise my engine to clear the hydro steer ram) and haven't touched them since.

Check the end of my build thread for exhaust pictures.
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Old 10-03-2006, 09:22 PM   #18 (permalink)
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I run the vette ramhorns with the 2.5" dump on mine. The right exhaust I bring under the front of the oil pan and collect it near the starter. I then go 3" all the way out by the left rear wheel well. I've got 2 cats and a muffler crammed in there on my 5.7 vortec so it can be done. You should be able to tuck a full sized flowmaster in there.
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Old 10-04-2006, 06:10 AM   #19 (permalink)
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did some more searching, and found this in the 'yota forum...
http://www.pirate4x4.com/forum/showt...731&highlight=
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Old 10-04-2006, 07:27 AM   #20 (permalink)
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hooker headers, 2 1/4 inch u bends from summit for cross over then 2 into 1 then 3 inch into a dynmax bullet with turn down. Wrapped with exhaust wrap to cover the shitty looking exhaust welds and chop saw cuts and for the heat on the floor boards
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Old 10-04-2006, 07:39 AM   #21 (permalink)
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Quote:
Originally Posted by chris demartini
I also have Hooker blockhuggers and I also melted a few sets of poly mounts on the AA cradle. So did another guy I wheel with who has these headers and motor mounts. I eventually changed to the AA weld-on style mounts (needed to raise my engine to clear the hydro steer ram) and haven't touched them since.

Check the end of my build thread for exhaust pictures.
I remember you saying that they wouldn't last when I first put the poly mounts on the cradle... And you were right.

Those AA weld ons seem to place the bushing farther away than most... I think that I may take your advice and go this route.

Thanks,
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Old 10-04-2006, 08:02 PM   #22 (permalink)
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Wow!! All this crap and not one word about slick-fit block huggers???Just look for headers with a 3/8" or thicker flange and you won't get the infamous leaks...Slick-Fit has a compact design that pretty much stays out of the way.....and has a nice 3/8" flange.......good luck with your choice....sounds like the rams horns are the coat-tail of the month,haven't tried them but it sounds like an option.
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Old 10-04-2006, 08:06 PM   #23 (permalink)
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Hedman fenderwell hedders, I think they were "in" 10 years ago.

Im going to block huggers to keep the whole exhaust under skidplates..
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Old 10-05-2006, 09:42 AM   #24 (permalink)
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I called Summit last night..they have the ram horns for 69.00 a piece. Will take 2 weeks to get in. We are starting our 350 swap this weekend into the CJ7.
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Old 10-05-2006, 05:48 PM   #25 (permalink)
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Got an early 90's 350, what year Vette manifolds should I be looking for?
Does it have to the same era?
Won't most of the years interchange?
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