Project big block a body headers.
#2250098
02/09/17 01:02 AM
02/09/17 01:02 AM
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Joined: Feb 2007
Posts: 1,608 fresno ca
mikeysmopars
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top fuel
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OP
top fuel
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fresno ca
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Well after getting my engine rebuilt last year and changed everything from the transmission tunnel forward including a Bob's profab tube front end I ran my original 1 7/8" hooker fender wells which obviously left room for improvement, bought a set of Mazzolini/Tti Proparts 2 1/8 stepped headers and ended up going 2 tenths quicker with only a header change and bumping the timing from 36 to 38. Only problem was I hate in chassis headers so my quest to get some fender well headers made that would breathe and somewhat easy to work on. Some of the members here recommended RMS in Arizona which I was seriously concidering but a friend told me of a local guy. Went to check out his work and ended up having him make me a set. I cut my firewall to sink them back and as soon as I get them boxed in I'll shoot some pix of it finished but here are a couple of them after coating. Go ahead with your thoughts.
Last edited by mikeysmopars; 02/09/17 01:05 AM.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250111
02/09/17 01:24 AM
02/09/17 01:24 AM
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Joined: Sep 2015
Posts: 1,096 Australia
ozymaxwedge
super stock
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super stock
Joined: Sep 2015
Posts: 1,096
Australia
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Very very nice, how long are they ?
1963 Plymouth Max Wedge 1971 Barracuda
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Re: Project big block a body headers.
[Re: ozymaxwedge]
#2250118
02/09/17 01:36 AM
02/09/17 01:36 AM
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Joined: Feb 2007
Posts: 1,608 fresno ca
mikeysmopars
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OP
top fuel
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fresno ca
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To the collector they are about 63" He used 572 flanges and made them from 16 guage pipe. 2 1/8 to 2 1/4 to 4" collectors. They are heavy but I can work on every aspect of the car without removing them.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250210
02/09/17 09:42 AM
02/09/17 09:42 AM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
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I Live Here
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Akron, Ohio
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Looks good! My next project will have those V-band clamps, not sure what I'm doing wrong with my Walker band clamps but they keep crimping my pipes even when I oil them.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250276
02/09/17 01:01 PM
02/09/17 01:01 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
I Live Here
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I Live Here
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Akron, Ohio
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No I do not. I'll take a pic next time, seems to do it on the butt joint and lap joint band clamps.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Project big block a body headers.
[Re: Clanton]
#2250498
02/09/17 05:59 PM
02/09/17 05:59 PM
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Joined: Feb 2007
Posts: 1,608 fresno ca
mikeysmopars
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Have you tried to put them in the car yet?Did you think about putting a slip tube fit splitting the length? They were built on the car and I didn't want slip tubes. as big as these are they come out one piece. I had to cut into the firewall to have them go back far enough for a 26" tall front runner and I'm boxing them in as we speak. I'll send more pix after they are done.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250516
02/09/17 06:28 PM
02/09/17 06:28 PM
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Joined: Jan 2003
Posts: 14,506 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
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So. Burlington, Vt.
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250525
02/09/17 06:39 PM
02/09/17 06:39 PM
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Joined: Feb 2007
Posts: 1,608 fresno ca
mikeysmopars
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Side when I picked it up.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Project big block a body headers.
[Re: fast68plymouth]
#2250528
02/09/17 06:46 PM
02/09/17 06:46 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. Yep I agree... those are WAY to long to match the engine
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250535
02/09/17 07:02 PM
02/09/17 07:02 PM
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Joined: Jun 2008
Posts: 577 Arkansas
Adrielp
mopar
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mopar
Joined: Jun 2008
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Arkansas
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I'd love to have a set made like the stahl or proparts but better suited to fit my car. Having to modify my headers now so that I can get to the shock adjustment knob.
Adriel Paradise Substation Design Engineer III
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Re: Project big block a body headers.
[Re: fast68plymouth]
#2250537
02/09/17 07:02 PM
02/09/17 07:02 PM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
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master
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Canton, Ohio
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. As soon as I saw 63", your old dyno tests with the longer headers came into my mind. Said , oh no, maybe not so good. Edit; ok, I see they are 2"1/8 to 2"1/4 pretty quick. That might be just fine. 2"1/4 is pretty huge, it may want that 63" This would make a dyno test pretty interesting as stated.
Last edited by Sport440; 02/09/17 07:57 PM.
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Re: Project big block a body headers.
[Re: Sport440]
#2250579
02/09/17 08:02 PM
02/09/17 08:02 PM
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Joined: Feb 2007
Posts: 1,608 fresno ca
mikeysmopars
OP
top fuel
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OP
top fuel
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fresno ca
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. As soon as I saw 63", your old dyno tests with the longer headers came into my mind. Said , oh no, not so good. Going to run in two weeks so I have no choice but to run them and if it hurts my ET my plan is too have him shorten them like the headman hustler style headers which would take about 12 to 14 inches out of them but put the collector right in the firewall. If it actually gains from my last outing im gonna leave them alone.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Project big block a body headers.
[Re: Sport440]
#2250596
02/09/17 08:21 PM
02/09/17 08:21 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. As soon as I saw 63", your old dyno tests with the longer headers came into my mind. Said , oh no, maybe not so good. Edit; ok, I see they are 2"1/8 to 2"1/4 pretty quick. That might be just fine. 2"1/4 is pretty huge, it may want that 63" This would make a dyno test pretty interesting as stated. No way... they are way too long... have you EVER seen a 63" long primary tube header.. then add the collector.. that guy made them fit to what the guy wanted.. way out of spec for the engine EDIT How long is the collector
Last edited by MR_P_BODY; 02/09/17 08:24 PM.
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250608
02/09/17 08:37 PM
02/09/17 08:37 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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bean town ....Ca
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. As soon as I saw 63", your old dyno tests with the longer headers came into my mind. Said , oh no, not so good. Going to run in two weeks so I have no choice but to run them and if it hurts my ET my plan is too have him shorten them like the headman hustler style headers which would take about 12 to 14 inches out of them but put the collector right in the firewall. If it actually gains from my last outing im gonna leave them alone. run it have some fun..it is to bad you were not going back to the dyno
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Project big block a body headers.
[Re: mikeysmopars]
#2250631
02/09/17 09:06 PM
02/09/17 09:06 PM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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That would make for an interesting dyno test.
As i recall......On a mid-600hp 493, 2" Hooker fenderwells were down about 35hp to my dyno headers. 63" is going to tune to a pretty low rpm. As soon as I saw 63", your old dyno tests with the longer headers came into my mind. Said , oh no, not so good. Going to run in two weeks so I have no choice but to run them and if it hurts my ET my plan is too have him shorten them like the headman hustler style headers which would take about 12 to 14 inches out of them but put the collector right in the firewall. If it actually gains from my last outing im gonna leave them alone. Read my post again, edited it 5 minutes before this post of yours.
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