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03-16-2014, 12:55 AM | #1 |
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Ram Horn Exhaust Manifold
I have made a lot of progress on my full retard project I got in the last few weeks. Now I need to start buttoning up my project so I can get her back on the road.
The guy I got the trucks from owes me a set of long tubes, but I am beginning to think they may not be the best way for exhaust. They would be in the way of my front shaft, and put the cross over in a awkward place. The shorties I have don't work well with straight plug heads, and they maybe annoying with the boots I have. My other choice is Corvette 2.5 ram horns. They seem to be a very good option on cost, and function. As my stockish 350 wouldn't really benefit from headers. Especially at the rpm's it will be working. Speedway has a set for a good price. http://www.speedwaymotors.com/Corvet...air,58966.html Does anyone know of a better version or a cheaper place to get them including shipping. Or have header options I should look at. I plan to run 2 1/2 inch pipes to a 3" Y collector into a 3 inch muffler with a magnaflow muffler. Maybe a Flowstopper super 44 as I loved the way it sounded on a previous build. |
03-16-2014, 07:42 AM | #2 |
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Re: Ram Horn Exhaust Manifold
Summit has those same manifolds for $98.00 and free shipping. You have to order each one as they don't sell as a pair. But you can save a $25.00 at least.
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03-16-2014, 10:05 AM | #3 |
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Re: Ram Horn Exhaust Manifold
Several years ago I bought a rams horn manifold on ebay and the casting seams and edges were rough and had to be ground down. Even then it was not as nice looking as the original ones. Hopefully the ones that you are looking at are finished better.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
03-16-2014, 11:36 AM | #4 |
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Re: Ram Horn Exhaust Manifold
I do not use headers and anything that does not run down a track. This is all I EVER use. I have had no problems with them at all. I use these because I don't like the accessory ears and I really don't care to cut them off.
http://www.ecklerstrucks.com/chevy-t...1947-1972.html
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2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! It's not just a hobby..It's a LIFESTYLE!!! Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! |
03-16-2014, 11:59 AM | #5 |
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Re: Ram Horn Exhaust Manifold
I agree with 72Freak, there's just no need for headers on mild build, daily drivers (like mine for instance). If you're going to open them up occasionally for a blast down the track, then that's a different story. I run the 2.5 rams horns. started off with an e-bay set of corvettes at about $225/set. exhaust guy broke a tab on one of the flanges and that manifold eventually cracked a couple of years later. replaced it with an after market version, basically like the Speedway one for basically that price ($80-90 ea)
p.s.: 2.5s into a 3" would be an excellent way to run, thought about that myself. p.p.s. buy this: http://www.summitracing.com/parts/rnb-674-504/overview/ $47.97 and the matching one for the other side: http://www.summitracing.com/parts/rnb-674-503/overview/ $51.97 and you should make the $99 free shipping cutoff
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Larry Last edited by fleetsidelarry; 03-16-2014 at 12:29 PM. |
03-16-2014, 09:34 PM | #6 |
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Re: Ram Horn Exhaust Manifold
I may do the summit ones as I need a few other parts from them to button up the truck.
The last 2 weekends have been very productive. I have the body bolted down to the chassis I am going to use, and the engine swapped in. I also got rid of other 2 trucks, and sold a few things off them. All I need to do is hook up the wring, and service all the components. |
03-17-2014, 02:19 PM | #7 |
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Re: Ram Horn Exhaust Manifold
72Freak, does the straight outlet hit your motor mount stands? This has been an issure for some.
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03-18-2014, 07:44 AM | #8 | |
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Re: Ram Horn Exhaust Manifold
Quote:
In the past 60 days we have done a set on a 66 with a floor shifter and a 67-72 with the V8/auto in the correct holes.
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2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! It's not just a hobby..It's a LIFESTYLE!!! Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! |
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03-18-2014, 12:21 PM | #9 |
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Re: Ram Horn Exhaust Manifold
You couldn't pay me enough to run stock manifolds.
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03-18-2014, 01:53 PM | #10 |
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Re: Ram Horn Exhaust Manifold
The graphs and charts show that a good set of 2.5 manifolds ported or not are equal to a good set of headers. A lot of circle track and race cars still use a manifolds. Its personal preference and I just like that "somewhat" OE look.
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2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! It's not just a hobby..It's a LIFESTYLE!!! Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! |
03-18-2014, 02:11 PM | #11 | |
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Re: Ram Horn Exhaust Manifold
Quote:
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'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
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03-18-2014, 02:43 PM | #12 |
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Re: Ram Horn Exhaust Manifold
We do that because the rules mandate it, not because they flow better. At higher RPM, headers will beat manifolds heads down.
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2003 S10, 2.2 auto- the daily driver, currently with a 2"/2" drop and some minor engine bolt-ons 1978 Impala 2-door, race 350/T350 - the new race car, in progress 1968 Chevy C10 longbed- 3/5 drop, currently undergoing a heart transplant |
03-19-2014, 02:26 PM | #13 | |
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Re: Ram Horn Exhaust Manifold
Quote:
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"If you aint first your last!!" 1969 GMC C1500 Stepside Shortbed - daily driver Mando |
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03-19-2014, 06:24 PM | #14 |
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Re: Ram Horn Exhaust Manifold
Maybe it is because I'm a big-block guy, but I've always hated manifolds for their propensity to crack in half.
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'77 K35 - 454, SM465/NP205, 4.56 D60/14bFF |
03-19-2014, 09:52 PM | #15 |
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Re: Ram Horn Exhaust Manifold
With you on the big block...don't have ant specs or experience on them. This thread was about small blocks and that's what I am basing my info on. Its like comparing apples to refrigerators.
Hit the second page of this. Im not sure of the accuracy but im sure its not far off. http://67-72chevytrucks.com/vboard/s...83#post6515583
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2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! It's not just a hobby..It's a LIFESTYLE!!! Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! |
09-02-2014, 03:22 PM | #16 |
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Re: Ram Horn Exhaust Manifold
Speedway has these 2.5" manifolds without the hassle of the alternator/pump brackets for $140 and it includes hardware and gaskets:
http://www.speedwaymotors.com/Smooth...Raw,94194.html Doesn't say who the manufacturer is though.
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1971 K20 Suburban 2012 LS1500 4WD Suburban 2003 Honda Accord LX V6 (don't tell anyone) MY 'BUILD' THREAD: http://67-72chevytrucks.com/vboard/s...d.php?t=618915 |
09-02-2014, 03:30 PM | #17 | |||
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Re: Ram Horn Exhaust Manifold
Quote:
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
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09-03-2014, 04:20 PM | #18 | |
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Re: Ram Horn Exhaust Manifold
Quote:
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Life is too long to go slow... 71 GMC 1500 Super Custom LWB 350/350 AC(replaced w/vintage air)/PS/PB 2.5 CPP Spindle, 1" CPP Drop Spring, CPP Front and Rear Sway Bars/DJM Flip, new General Spring KC 5 spring pack, HEI /IntReg Alt 20x8.5 OldSkools 5" BS, 275/45 Falkens |
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09-10-2014, 11:49 AM | #19 |
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Re: Ram Horn Exhaust Manifold
Jegs also has a set of smooth ones by Wysco that are 140 shipped. Both these and the speedway ones state that they have a '2.5" collector'. for an outlet. Can anyone confirm whether the inlets are the same as was original on the 62-63 Vette manifolds? It looks to me like inside the inlets there is a restriction/reduction in the diameter. Did orignal 2.5" manifolds have this reduction? Can someone post a pic of the inlets from an OE setup? Thanks!
http://www.jegs.com/i/Wysco/938/MA03...FUNgMgodInIArw See this pic from Speedway on the chrome version. The inlet reduces.
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1971 K20 Suburban 2012 LS1500 4WD Suburban 2003 Honda Accord LX V6 (don't tell anyone) MY 'BUILD' THREAD: http://67-72chevytrucks.com/vboard/s...d.php?t=618915 Last edited by chewiebarker; 09-10-2014 at 11:52 AM. Reason: adding pic |
09-15-2014, 07:09 AM | #20 |
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Re: Ram Horn Exhaust Manifold
I like this alternative from Speedway but they're more money than the stock style ram horns.
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Sanity'66 http://67-72chevytrucks.com/vboard/s...d.php?t=515110 Long bed, Fleetside, Small back window I've Done So Much, With So Little, For So Long, That Now I Can Do Anything With Nothing. |
09-15-2014, 07:15 AM | #21 |
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Re: Ram Horn Exhaust Manifold
^^^^
Those can be purchased on eBay for around $100 pair. It's what I put on Suburban
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09-15-2014, 07:24 AM | #22 |
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Re: Ram Horn Exhaust Manifold
I looked at them for quite awhile before getting them and I've never seen them for that cheap, I wish I would have.
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Sanity'66 http://67-72chevytrucks.com/vboard/s...d.php?t=515110 Long bed, Fleetside, Small back window I've Done So Much, With So Little, For So Long, That Now I Can Do Anything With Nothing. |
12-04-2020, 10:28 PM | #23 |
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Re: Ram Horn Exhaust Manifold
Resurrecting this thread.
Has anyone any new suggestions for replacing my ram horn exhaust manifolds on my mostly original 1972 C10 with a 350??
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12-04-2020, 11:32 PM | #24 | |
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Re: Ram Horn Exhaust Manifold
Quote:
These are the type I got on Ebay[/URL] (probably not from the same seller): https://www.ebay.com/itm/283-327-350....c100005.m1851
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___________________________________________ Darien 1971 C10 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=502964 |
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12-05-2020, 11:18 AM | #25 |
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Re: Ram Horn Exhaust Manifold
Just curious, what would be the reason to change them unless they are cracked or something?
Just when I needed them a set came up on kijiji for forty bucks and for the old farm truck they work just fine. My truck will always be a beater. |
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