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#126 |
Registered User
Join Date: Oct 2014
Location: Brandon, Manitoba, Canada
Posts: 970
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Re: Speed Engineering LS Swap Headers Findings
Don't forget to check clearance from your bell housing as well. I had to trim a bit of my bell where the starter bolts up. Scorpion LS shorties SP16-5077CC.
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#127 | |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
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Re: Speed Engineering LS Swap Headers Findings
Quote:
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1968 LWB C20 / AC / Wood Bed |
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#128 |
Registered User
Join Date: Oct 2014
Location: Brandon, Manitoba, Canada
Posts: 970
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Re: Speed Engineering LS Swap Headers Findings
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#129 |
A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
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Re: Speed Engineering LS Swap Headers Findings
Use a mechanically locking nut instead of the nylock, problem solved. They are very slightly ovaled so that they don’t back off
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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#130 |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
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Re: Speed Engineering LS Swap Headers Findings
I'm wondering if you can rotate the mount so the clamshell is more towards the bottom of it?
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1968 LWB C20 / AC / Wood Bed |
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#131 | |
Registered User
Join Date: Jun 2018
Location: Texas
Posts: 1,353
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Re: Speed Engineering LS Swap Headers Findings
Quote:
Explain this, how can I rotate the clamshell? I have sliders and mounts kit from performance online.
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TA_C10 Stage 1 build - http://67-72chevytrucks.com/vboard/s....php?p=8333444 "It's only money". ![]() |
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#132 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: Speed Engineering LS Swap Headers Findings
You could put the bolt in from the other way or just use an all steel lock nut. Fantenal calls them top loc nuts.
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#133 |
Registered User
Join Date: Jun 2018
Location: Texas
Posts: 1,353
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Re: Speed Engineering LS Swap Headers Findings
Boom. Found em. Distorted thread locknut.
https://en.m.wikipedia.org/wiki/Dist...thread_locknut And I also found the Fastenal brand top lock nut. I will get one of these and replace the nylock nut. I've used these before now that I'm setting them... And as for putting the bolt in the other way that is out of the question as the adapter plates are right up next to the block and these bolts come from the backside so can't switch them like that. I should be able to clearance a small amount of that clamshell top plate and use the top lock nut. Thanks guys, I will report back here and on my build thread when I get this completed. ![]()
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#134 |
hillbilly
Join Date: Apr 2007
Location: hampton,tn
Posts: 459
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Re: Speed Engineering LS Swap Headers Findings
These headers fit great. I had to slide the engine back an inch for them to clear the frame but they fit great everywhere else.
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-1962 C-10 |
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#135 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: Speed Engineering LS Swap Headers Findings
Which ones are you using? The long tubes, mid length or the shorties?
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#136 |
hillbilly
Join Date: Apr 2007
Location: hampton,tn
Posts: 459
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Re: Speed Engineering LS Swap Headers Findings
Im using the long tubes with 1 7/8 primarys. They fit better than the old longtubes that were on the 283 when I got the truck. I will try to get a picture under neath to show how far they hang down.
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-1962 C-10 |
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#137 |
Registered User
Join Date: Jun 2018
Location: Texas
Posts: 1,353
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Re: Speed Engineering LS Swap Headers Findings
Here is what I ended up clearancing. Now you can see that nylock nut underneath and why I was worried about the heat melting it. But I still plan to get one of those all metal Top Lock Nuts.
I think this is going to work just fine ![]() .
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TA_C10 Stage 1 build - http://67-72chevytrucks.com/vboard/s....php?p=8333444 "It's only money". ![]() |
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#138 |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
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Re: Speed Engineering LS Swap Headers Findings
Can anyone say how much louder these headers are vs. manifolds? I've got LTs on my other car and they kind of drone, which is cool at first but not so much on longer trips.
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1968 LWB C20 / AC / Wood Bed |
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#139 |
Registered User
Join Date: May 2013
Location: San Antonio, Texas
Posts: 104
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Re: Speed Engineering LS Swap Headers Findings
Been thinking about buying a set as well.
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68' Cst10 w/69 front, 5.3/4L60e swap, 12 bolt 4.11's Project "Huckleberry" ![]() 68 GMC K1500 1/2 ton L83/6L80e |
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#140 |
Registered User
![]() Join Date: Jul 2012
Location: Burleson Texas
Posts: 570
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Re: Speed Engineering LS Swap Headers Findings
Was looking through here and didtnt see my exact combonation of a 71 with a 5.3, speed engineering shorties, CPP mounts and clamshells. I have the multi position dirty dingo plates, not the sliders. Anybody with this combo ?
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#141 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: Speed Engineering LS Swap Headers Findings
I think I am getting a set of the 1 7/8. Seems they could put a v band on the collector and it probably could solve a lot of shipping issues and make us all happier. They are cheap enough to add a few bucks to the price for the peace of mind. I've got the f body setup with a T56. It's all in mock up right now. Anyone running this setup yet?
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#142 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: Speed Engineering LS Swap Headers Findings
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#143 |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Speed Engineering LS Swap Headers Findings
I'm using them on my K10 swap which is currently in process. I bought the shortie version (25-1021) because I have a 4WD crossmember to contend with. These will give me more room to work my exhaust around/through. I also decided to send them out for ceramic coating.
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~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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#144 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: Speed Engineering LS Swap Headers Findings
The spark plug clearance looks pretty good on the drivers side. How about the passenger side?
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#145 |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Speed Engineering LS Swap Headers Findings
Good on both sides.
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~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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#146 |
Active Member
![]() Join Date: Nov 2018
Location: SHERWOOD PARK, AB
Posts: 113
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Re: Speed Engineering LS Swap Headers Findings
Any chance anyone has used the 1 7/8" long tubes with a No Limit rack and pinion?
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#147 |
Registered User
Join Date: Jan 2019
Location: Bonner Springs, KS
Posts: 56
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Re: Speed Engineering LS Swap Headers Findings
Bought the shorty version for around $200. Fit great , but have to trim passenger side ear off th 400
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#148 |
Registered User
Join Date: Jan 2013
Location: Columbia, SC
Posts: 1,927
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Re: Speed Engineering LS Swap Headers Findings
My Vortec 5.3 is on a run stand and has 2001 Camaro LS1 manifolds. They hug the block nicely.
I intend to keep a manual tranny and from the looks of things these manifolds will interfere with a hydraulic clutch slave. So I want to know if maybe these Speed Engineering headers will give me more room. I know they will fit nicely between the frame rails of my 65 C10. Anyone willing to make a few measurements?
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#149 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,946
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Re: Speed Engineering LS Swap Headers Findings
I have the long tubes and there’s no clearance for a Novak external slave.
Not a great pic, but it kind of shows the lack of room.
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#150 |
Registered User
Join Date: Jan 2013
Location: Columbia, SC
Posts: 1,927
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Re: Speed Engineering LS Swap Headers Findings
Thanks. I’m thinking the shorty headers turn down sooner but that’s the clearance info I need. I’m sure others have mated Tremec trannies. I just need to see their setup. I don’t think a Novak setup will work for me either.
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My 65 C10 build: www.lugnutz65chevystepside.weebly.com Want to know more about T5 transmissions? My website has a T5 Info Page and a Step by Step T5 rebuild. |
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