![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Alright Alright Alright
Join Date: Mar 2004
Location: Midland, Texas
Posts: 1,672
|
2in ramhorns or shorty headers
i have a 78 swb chevy sport van and im trying to piece together an exhaust system for it. i was thinking about shorty headers or 2 in ramhorns. either way, they have to be short because im going with chrome perferated side pipes and after the engine, the exhaust will be making a sharp 90 degree turn. i hear that ramhorns flow as good as shorties but does that go for 2 in ramhorns and not the 2.5 ones. what ever i do, im ditching the log style manifolds it currently has. what do yall think?
__________________
1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies Last edited by crm318; 07-24-2007 at 07:30 PM. |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
|
Re: 2in ramhorns or shorty headers
Lets see some pics. I use to have a 76 SWB back in the day.
|
![]() |
![]() |
![]() |
#3 |
Alright Alright Alright
Join Date: Mar 2004
Location: Midland, Texas
Posts: 1,672
|
Re: 2in ramhorns or shorty headers
here are some
__________________
1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies |
![]() |
![]() |
![]() |
#4 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
|
Re: 2in ramhorns or shorty headers
Wow!That`s too much.I like headers,but the ramshorns flow real good.They are a performance design.But,the 2 1/2s are what you need for header-like flow.Do you need that?Do I?
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
![]() |
![]() |
![]() |
#5 |
Alright Alright Alright
Join Date: Mar 2004
Location: Midland, Texas
Posts: 1,672
|
Re: 2in ramhorns or shorty headers
i sure wouldnt mind more flow. the motor will be a mild efficient highway cruiser that wont see over 4000 rpm.
__________________
1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies |
![]() |
![]() |
![]() |
#6 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: 2in ramhorns or shorty headers
if it won't go over 4000 RPM, then there's really no need for the headers.
Besides, shorties suck. You get the PITA of headers, with the performance of a manifold. (minimal gains unless you get the real expensive ones) The long tube headers would make the torque that you need with a 2 1/2 ton brick (or is there a water bed in there... if so, make it a 3 ton brick) rolling. |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
|
Re: 2in ramhorns or shorty headers
Wow! Nice looking van. And rust free! Must be the Texas climate. My 76 was rusted out even back in 85'
|
![]() |
![]() |
![]() |
#8 |
It's the air up here
Join Date: Mar 2007
Location: Western Colorado
Posts: 710
|
Re: 2in ramhorns or shorty headers
I would go with any variation of stock manifolds that you can. Headers of any kind cause as much problem as they fix in DD aplication. Headers are good for racing. Manifolds are good for every day use.IMO
__________________
1971 cheyenne k10 4 speed np 205 454 BB factory a/c ![]() Never drink down stream of the herd! Eric |
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Jun 2007
Location: mississippi
Posts: 181
|
Re: 2in ramhorns or shorty headers
i'd have to think headers would be an added headache in a van that tends to be a bit of a headache to do work on anyway. in terms of spark plug and wire changes
__________________
"spiiiider pig, spiiiiider pig, does whatever spiiiider pig does. " |
![]() |
![]() |
![]() |
#10 |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
|
Re: 2in ramhorns or shorty headers
Having the engine directly beneath the instrument panel does cause some ease of access issues, doesn't it? Best way to change plugs is to put it on a rack and do it from underneath. Headers may complicate that. Dual exhaust from stock manifolds, whether original or ram's horn, may make more difficult. But the stock manifolds, where the plugs are beneath the bulk of the manifold, may offer easier maintenance. Putting side pipes on it will give it that 70's look that the rest of it already has. I'd be sure to have an exhaust balancing pipe/x-pipe as part of the system to maximize the available torque. It may be that you won't have enough room for it to be done, though.
Oh, nice short.
__________________
Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Jun 2007
Location: mississippi
Posts: 181
|
Re: 2in ramhorns or shorty headers
the motor I just put in my truck came from a 77 vanbody rv, the manifolds that it had were great in the sense that they stayed underneath the plugs and left a ton of room for plug change. while the rams horns are above the plugs and are a little bit of a pain on the last two plugs. almost used those manifolds but they looked like they might shoot into the firewall, and i didn't have time to experiment and redo my exhaust
__________________
"spiiiider pig, spiiiiider pig, does whatever spiiiider pig does. " |
![]() |
![]() |
![]() |
#12 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
|
Re: 2in ramhorns or shorty headers
imo ramhorns are the way to go
__________________
common sense isn't so common anymore |
![]() |
![]() |
![]() |
Bookmarks |
|
|