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#1 |
YA YA
Join Date: Aug 2004
Location: Rockledge, Fl
Posts: 1,273
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headers - flowtech or Dynomax
Anyone tell me anything about these headers. Price is about the same just curious which is the better header?
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Jimbo '72 SWB - 350 (frame-off resto in progress - donations accepted) '04 Chevy Avalanche '03 Cadillac CTS (wife's ride) Restoration progress - http://67-72chevytrucks.com/vboard/s...d.php?t=335707 |
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#2 |
The oddest Todd around
Join Date: May 2004
Location: Miami, Florida
Posts: 1,418
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hooker
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#3 |
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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I have Dynomax no problems .
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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#4 |
my gas saver
Join Date: Sep 2003
Location: Clarksville, TN
Posts: 2,046
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i thought flowtech and dynomax were the same, through holley or something like that.
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85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback |
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#5 |
YA YA
Join Date: Aug 2004
Location: Rockledge, Fl
Posts: 1,273
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lol - hookers maybe down the road Todd, don't have the exta duckets for them at the moment.
Thanks bill! Are you running dynomax mufflers also? If so, do they sound pretty good?
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Jimbo '72 SWB - 350 (frame-off resto in progress - donations accepted) '04 Chevy Avalanche '03 Cadillac CTS (wife's ride) Restoration progress - http://67-72chevytrucks.com/vboard/s...d.php?t=335707 |
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#6 | |
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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Quote:
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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#7 |
Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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"I have stock mufflers on BB .Guess I'm getting old ." A little older Bill and you'll think flowmasters sound normal and everyone else will think they're loud. Unless you turn up the hearing aid.
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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#8 |
Registered User
Join Date: Jun 2003
Location: Northwest GA
Posts: 132
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I have been running a set of Dynomax JetHot coated headers for a while now (350), and I love them. They are still very nice and silver just like when I got them.
My dad also has them on his truck (454) with no problems, except on his truck the header runs so close to the starter that it heats them up and causes problems. I am running Mellow-Tone single chamber drag mufflers - and I am still plenty quiet enough to be on the street without any problems.
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Orange '71 GMC |
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#9 |
YA YA
Join Date: Aug 2004
Location: Rockledge, Fl
Posts: 1,273
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I think I'll give the dynomax a try - I can always sell 'em and go with something different later.
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Jimbo '72 SWB - 350 (frame-off resto in progress - donations accepted) '04 Chevy Avalanche '03 Cadillac CTS (wife's ride) Restoration progress - http://67-72chevytrucks.com/vboard/s...d.php?t=335707 |
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#10 |
Registered User
Join Date: Oct 2004
Location: saskatoon, planet earth
Posts: 691
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I'm useing flowtechs,, they seem to fit not bad, and you can still get at most things,, cept I think I'll sell it when it's time for new plugs.
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#11 | |
.........................
Join Date: Nov 2001
Location: benton, ky
Posts: 288
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Quote:
Im running Flowtech's and only have to use a end wrench on the #6 plug, rest are a straight shot with a socket. BTW you can get them at autozone for like $80. Came with collectors and all too, if I remember correctly.
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1971 LWB Chevy C-10 350/350 3:42 eaton ![]() |
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#12 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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The Flowtech headers are the old Blackjack headers...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#13 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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If you decide to go Dynomax headers, order the Summit brand headers. They are reboxed Dynomax units. If you look close, you can make out the Dynomax part number stamped into them by the collector.
I've run the Summit Jet-Hot coated headers personally. It was a pleasant surprise when they cost 180 bucks and were Dynomax brand. The non Jet-Hot ones are like 90 bucks.
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I'm on the Instagram- @Gearhead_Kevin |
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#14 |
Insert funny comment.
![]() Join Date: Dec 1999
Location: Concord NC
Posts: 621
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Got a p/n on the summit ones? ... are the long tube?
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------------ - Mark -My Build Thread... -68 C10, LT1 - Undergoing Frame off resto -86 IROC-Z T72 turbo 355, M6 -70 Camaro http://www.iroc-ss.com |
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#15 |
Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Flowtech Thicker flanges And you can get flowtech at autozone. Friend of mine claims came with a lifetime warranty Im skeptical But at leats you can get them without paying shipping.
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#16 | |
The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,477
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Quote:
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Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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#17 |
Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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I have small block hedmans and I like them!
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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#18 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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The Summit headers are reboxed Dynomax headers.
Part number SUM-G9006 for the normal ones cost is 79.50 Part number SUM-G9006-9 for Jet Hot coated cost is 180.99 Here's a picture of the Jet-Hot coated ones on my old 72. If they look a little shabby, keep in mind he left the hood off this truck with it sitting outside in the weather for over a year one time.
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I'm on the Instagram- @Gearhead_Kevin |
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#19 |
YA YA
Join Date: Aug 2004
Location: Rockledge, Fl
Posts: 1,273
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Been meaning to come back and update this post. I went with Dynomax, got 'em at Discount Auto for $87 bucks and came with all the flanges to mount right up. They're just black not jet coated. I also installed new tubing and dynomax mufflers as well. Must say she sounds mighty nice! Right now I have the pipes going all the way back and turning out behind the rear wheels but may change that to turn out in front of 'em. Any pro's or cons to that?
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Jimbo '72 SWB - 350 (frame-off resto in progress - donations accepted) '04 Chevy Avalanche '03 Cadillac CTS (wife's ride) Restoration progress - http://67-72chevytrucks.com/vboard/s...d.php?t=335707 |
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#20 |
YA YA
Join Date: Aug 2004
Location: Rockledge, Fl
Posts: 1,273
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Here's a few pics - hey no laughing at the tape on the window, it's held them windows together through three hurricanes...
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__________________
Jimbo '72 SWB - 350 (frame-off resto in progress - donations accepted) '04 Chevy Avalanche '03 Cadillac CTS (wife's ride) Restoration progress - http://67-72chevytrucks.com/vboard/s...d.php?t=335707 |
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#21 |
Registered User
Join Date: Jun 2004
Location: GRAFTON , OHIO
Posts: 58
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Sandersen headers are very well made with flanges so thick you do not need to run header gaskets! Just ultra black permatex . Never leak and no anoying header gaskets that burn out .
I bought mine thru early classic enterprises well worth the money. The mid length design keeps ground clearance as if you were running manifolds. |
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#22 |
All Praise RANDY!!
Join Date: Sep 2004
Location: Central California
Posts: 391
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If anyone wants some flow techs, check these out, new and cheap!
Flow Tech 1.5” black headers #11500 and both chrome alternator mount brackets needed---NEW $50.00 Call Pat at 209-614-7511, nice guy needs the $$$. |
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#23 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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On his 71, he won't need any alternator brackets.
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I'm on the Instagram- @Gearhead_Kevin |
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#24 |
Registered User
Join Date: Jan 2004
Location: San Diego
Posts: 25
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I have the ceramic Dynomax and like the others, I love them - they still look great after 2 years.
Orange 71 - I had the same problem with the heat from the headers frying my starter. Tell your dad to pick up the starter heat shield from Summit - I've had no problems since I installed it. Dan
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'68 Chevy LWB Fleetside 3/4T, 454/T400, PS, PB, PL, HEI, Dynomax Ceramic/Flowmasters, Oak/Stainless Steel bed, 90% Rest. '97 Lexus LX450 (FZJ80 Land Cruiser in disguise) Factory F&R Lockers '97 Camry DD w/Cleveland Browns sticker |
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#25 |
Seasonal Poster
Join Date: Apr 2002
Location: Kelowna BC Canada
Posts: 896
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Does anyone know what headers will fit on a 350 that is mounted on the I6 mounts (farther back in the engine bay) with a manual transmission? I know this is a weird request, but I have heard that the clutch linkage really gets in the way, just hoping that maybe someone here has had any luck??
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67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW |
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