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#26 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Manifolds VS Headers round two thousand
headers = braggin' rights (period) LOL
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#27 |
Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Manifolds VS Headers round two thousand
I've used headers on just about everything since '75 , and I don't see the problem either. More benefits than negative issues in my account. Better mileage is welcomed along with the HP boost.
I've used 'vette ramhorns where our racing class ruled "all cast iron manifolds", but they are the only ones I'd consider ,and they required building a special exhaust to boost their performance. I'd choose the cam based on the exhaust I am going to use.
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Tim K. 84 K30 srw Silverado 454 auto 85 C20 350 C6P auto flatbed 94 K1500 lifted shortbed 350 4 bbl NV4500 Last edited by 68post; 04-01-2015 at 12:49 AM. Reason: 2 slo' |
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#28 |
Registered User
Join Date: Oct 2014
Location: Spearfish South Dakota
Posts: 407
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Re: Manifolds VS Headers round two thousand
Thanks for all the input. I was driving the old mans 75 ford 250 back from wyoming to Denver Xmas day. Flange on collecter snaped off.Man that was a loud 350 miles. Maybe it was just a ford thing.
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83 c10 long Box Daily Driver 90 Jimmy parked 98 Road King/ 06 Road Glide In memorium 63 impala SS/ 65 Chevy Panel 65 GMC Short Box/ 68 Camero |
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#29 |
Registered User
Join Date: Dec 2011
Location: Boise, Idaho
Posts: 572
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Re: Manifolds VS Headers round two thousand
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#30 |
Registered User
Join Date: Jun 2015
Location: Denmark
Posts: 30
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Re: Manifolds VS Headers round two thousand
I see a couple of complaints about heat from headers...
A roll of power wrap and that should be fixed? |
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#31 |
Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: Manifolds VS Headers round two thousand
Acoording to some test i saw. Ceramic coated headers run about 200 degree while painted headers run about 600-800 degrees. Also Speedway ramhorns probably flow alost as good as cheap headers. And dimpling a set of hooker headers didn't make any difference on a dyno. I run ramhorns but I may try headers . I also agrre with SpecialK. I blow out donuts all the time.
Last edited by rayfinseats; 01-24-2016 at 10:08 PM. |
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#32 | |
Registered User
Join Date: Jun 2015
Location: Denmark
Posts: 30
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Re: Manifolds VS Headers round two thousand
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#33 |
Registered User
Join Date: Jul 2010
Location: MD
Posts: 1,937
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Round two thousand is right. This has been discussed to death and the general consensus is that headers will help make more power *if* your current exhaust is restrictive.
__________________
1969 c-10 Step Side Long Bed. I-6 250cid = ![]() |
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#34 | |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,488
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Re: Manifolds VS Headers round two thousand
Quote:
Have you tried using a shorter oil filter? For example, a WIX 51069 is approx 7/8" shorter than a WIX 51061. Same is probably true for other filter brands. Even with a shorter filter, you could wrap the header tubes where they're close to the filter with a product like this: http://www.summitracing.com/parts/aa...4240/overview/ ![]()
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 01-26-2016 at 10:14 AM. |
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#35 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,488
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Re: Manifolds VS Headers round two thousand
Looks like those trusty Hedmanns have served you well!
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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#36 |
Registered User
Join Date: Dec 2011
Location: Boise, Idaho
Posts: 572
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Re: Manifolds VS Headers round two thousand
Does anyone have a specific part number for a mid-length header that will fit 80-90ish trucks? i have a v2500
One that is in production today? I have called to most manufact'urers and they say no but Geezer on this thread has a set, just no part umber for todays market. for example this is for 2wd, headman does not know why. just is? I can not see where it would not fit a 4wd http://www.summitracing.com/parts/he...olet/year/1989 also,, if i search for a V3500 i get some that fit Any help is appreciated. I would rather not go full length. Chris |
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#37 |
Collector of Projects
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
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Re: Manifolds VS Headers round two thousand
Bringing this back up. Does anyone have pictures of the 2.5" straight dump Corvette manifolds in a C10? I'm looking at a set of smoothies from Speedway Motors as well as some mandrel bent extensions. I already have a GM mini starter. See the link in my signature for the 78. I want to know if anyone had clearance issues.
http://www.speedwaymotors.com/Smooth...Raw,94194.html ![]() ![]() |
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#38 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: Manifolds VS Headers round two thousand
Quote:
I was going to run the Vette units on my 64 but they would have interfered w/the R&P steering linkage I needed (PB Dropmember) so I went w/the Speedway units (they cleared).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#39 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Manifolds VS Headers round two thousand
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#40 |
Collector of Projects
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
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Re: Manifolds VS Headers round two thousand
Cool video.... but I know I want to go back to cast manifolds... I just need to know about fitment in a 1978 2wd Blazer. I want quiet cruiser reliability....low and slow.
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#41 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,720
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Re: Manifolds VS Headers round two thousand
2.5" ramhorns don't work in 73-87's. 2"s will with some help.
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-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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#42 | |
Collector of Projects
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
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Re: Manifolds VS Headers round two thousand
Quote:
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#43 |
Registered User
Join Date: Oct 2013
Location: Maine
Posts: 2,356
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Re: Manifolds VS Headers round two thousand
Good tips MikeB. The purple wire extension should be easy and I have some extra header wrap laying around here that I can use on that header.
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76 Chevy K20 76 GMC K15 77 Chevy C10 77 Chevy K10 |
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#44 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: Manifolds VS Headers round two thousand
Quote:
I'll get some pics up. The motor mount towers for the PB Dropmember are different vs OE towers. Not sure how much harder it would have been w/the OE towers & mounts.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#45 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: Manifolds VS Headers round two thousand
Here are the pics from my modded 68 frame. PB Dropmember up front w/a gear-reduction starter & 2.5" exhaust.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#46 |
Registered User
Join Date: Dec 2008
Location: Las Vegas, NV
Posts: 810
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Re: Manifolds VS Headers round two thousand
oh I like! are those the Speedways?
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1983 Chevy C10 250/3spd (current project truck) 1976 Chevy C10 350/350 Heavy Half (future project truck) |
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#47 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: Manifolds VS Headers round two thousand
Yes sir. I started with replacement Vette units (Dorman) but they wouldn't allow for clearance w/the steering shaft to R&P unit when using the Dropmember. I got the Speedway units & they tuck just enough to clear.
I had these coated as well w/a Titanium exhaust coating so that cast appearance in the pics is not 'as purchased'.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#48 |
Registered User
Join Date: Dec 2012
Location: Pendleton, Indiana
Posts: 235
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Re: Manifolds VS Headers round two thousand
SCOTI is the titanium coating a self applied product or from a company like Ruske?
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#49 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: Manifolds VS Headers round two thousand
Quote:
The manifolds come 'as cast' which is very close in color. I wanted to ensure they stayed that as-cast color for the long term so this was as close as I could get to it vs the bright ceramic polished coatings.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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