Speed Engineering LS Swap Headers Findings - Page 4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

19SIKtySix · 08-22-2018, 11:04 AM

Quote:

Originally Posted by gringoloco

They are the C10 specific (same part number as Chevelle) LS swap long tubes. The reason they work so well is due to the dropmember raising the engine. Stock engine location, I think the collectors will hang down 1.5” or so, too much for a heavily lowered or bagged truck, in my opinion.

I just noticed that you're running a coilover drop member, am I right? If your truck was bagged running a PB crossmember, do you think your headers would work?

I'm thinking to prevent for future clearance issues, the shorty headers would be a better option for me.

Thanks for your response and help on this!

gringoloco · 08-22-2018, 08:28 PM

Quote:

Originally Posted by 19SIKtySix

I just noticed that you're running a coilover drop member, am I right? If your truck was bagged running a PB crossmember, do you think your headers would work?

I'm thinking to prevent for future clearance issues, the shorty headers would be a better option for me.

Thanks for your response and help on this!

No worries, this is why we post, to help each other out

Yes, the bagged Dropmember uses the same geometry as the coilover version, so they would fit with the same magic as mine, probably better, due to the absence of the upper coilover mounts.

For me, shorty headers are are not worth the pain that comes with them (blown gaskets, burnt wires, etc). There are a few nice mid-length options out there that will fit the bill and will not lose too much in translation. Hedman comes to mind with their C10 specific mid-lengths—thick head flanges, heavy gauge tubing, and ball/socket collectors. Uncoated I think are under $300

rgrhoward · 08-23-2018, 10:55 AM

Out of curiosity, has anyone measured the flange thickness on these headers?

I do not see it listed on the web site.

Also, any idea where they are made?

NC_John · 08-23-2018, 08:47 PM

Quote:

Originally Posted by rgrhoward

Out of curiosity, has anyone measured the flange thickness on these headers?

I do not see it listed on the web site.

Also, any idea where they are made?

They are thick. A friend that is with ECR (their corvette racing side) looked at mine yesterday and thought they were actually kooks (high $$$). He was amazed when I told him they were cheap-o chinese specials.

gringoloco · 08-24-2018, 08:37 AM

Eyeballing, they look like 3/8” flanges. I imagine they are Asia-built, but very nicely done

slowcpe · 08-24-2018, 09:28 PM

Looks like I may have to order a set for my Level 1 DM truck. For once I don’t have to buy the most expensive piece out there.

RockhoundII · 08-26-2018, 02:32 PM

Here they are in my 79 Blazer. They clear the frame just fine, but require cutting on the passenger side of the 4l80E bellhousing. I had the same packaging issues some other people have mentioned, my driver side collector is damaged. I've had them bolted up to an LS3 with a 6L80E in the same truck and had no clearance issues whatsoever.

RockhoundII · 08-26-2018, 02:34 PM

Quote:

Originally Posted by rgrhoward

Out of curiosity, has anyone measured the flange thickness on these headers?

I do not see it listed on the web site.

Also, any idea where they are made?

They are 3/8" flanges.

rgrhoward · 08-27-2018, 10:18 AM

Quote:

Originally Posted by RockhoundII

They are 3/8" flanges.

Awesome! Thanks!

**michael bustamante** · 08-27-2018, 06:12 PM

update. installed mine last weekend in my 67 with a 4-6 drop, 5.3 dbw with 4l60. fit perfect, no trimming, no cutting no fabbing. nada... cleared the tranny and the starter no problem.
only part that sucked was I had to remove my brake master cylinder and booster to get the driver side in, now I gotta re bleed em again.

bs46488 · 08-28-2018, 05:19 PM

I bought a set of the long tube 1 3/4 based on this thread.

5.3 with 4l65e and 3/5 drop in the truck.

The box showed up a little banged up but I just grabbed a crescent wrench and straighten things out.

The headers fit with no issues. I reused the factory trans cooler hard lines, so I needed to make some "adjustments" to the line to get them not to touch.

I installed the passenger side from the top. Drivers side from the bottom.

**1971Stepside** · 09-14-2018, 04:50 PM

I purchased the upgraded gaskets with mine, but not sure which gasket goes against the block and which one goes against the header. Haven't looked at them that closely, but it dawned on me while looking through this thread. Anyone have a pic or explanation on how I should install them? Thanks,

aggie91 · 09-17-2018, 09:19 AM

Quote:

Originally Posted by 1971Stepside

I purchased the upgraded gaskets with mine, but not sure which gasket goes against the block and which one goes against the header. Haven't looked at them that closely, but it dawned on me while looking through this thread. Anyone have a pic or explanation on how I should install them? Thanks,

You should not have 2 gaskets between the head and the header flange.

If you got sent 4 gaskets, then the upgraded ones should be the multi-layer steel versions. Without seeing what you have, The multi-layer gaskets should not have a specific side that goes against the head or the header flange...Just use one multi-layer gasket between the head and the header flange.

**1971Stepside** · 09-17-2018, 09:55 AM

Thanks aggie. I hadn't seen a two gasket set up, so I was confused. I guess they just sent the standard ones and the upgraded ones.

aggie91 · 09-17-2018, 04:46 PM

Quote:

Originally Posted by 1971Stepside

Thanks aggie. I hadn't seen a two gasket set up, so I was confused. I guess they just sent the standard ones and the upgraded ones.

That was my guess that they sent the standard ones and the upgraded ones too.

62chevy302 · 09-21-2018, 01:22 AM

Are the upgraded gaskets gm stock manifold mls gaskets?

cornerstone · 09-28-2018, 09:52 AM

Quote:

Originally Posted by 62chevy302

Are the upgraded gaskets gm stock manifold mls gaskets?

I am wondering the same thing. I ordered a set last night and added on the "upgraded gaskets". When they arrive I will post pics of theirs VS. stock GM.gaskets, although I am running a 5.3 LT from a 2014 truck, so they may be different than yours anyway... I dont know what setup you are going with.
Brian

62chevy302 · 09-29-2018, 08:26 PM

Ok i will be waiting on your reply

62chevy302 · 09-29-2018, 09:24 PM

I have a 04 6.0 truck block

19SIKtySix · 10-01-2018, 01:08 PM

I don't have them installed yet, but for those asking about the gaskets I have a set of the shorty headers from Speed Engineering. Overall they look like quality headers for the price of them. They come with the standard "paper" gaskets and the upgraded gaskets are similar to the OEM style.

Name: IMG_3125.jpg
Views: 1558
Size: 50.1 KB

Name: IMG_3125.jpg
Views: 1558
Size: 50.1 KB

Name: IMG_3126.jpg
Views: 1531
Size: 46.9 KB

19SIKtySix · 10-01-2018, 01:11 PM

Here's a couple more pics to show the quality of the shorty headers.

Name: IMG_3127.jpg
Views: 1639
Size: 50.1 KB

Name: IMG_3128.jpg
Views: 1634
Size: 45.0 KB

Name: IMG_3129.jpg
Views: 1614
Size: 51.1 KB

Name: IMG_3133.jpg
Views: 1599
Size: 44.4 KB

Name: IMG_3135.jpg
Views: 1622
Size: 35.8 KB

cornerstone · 10-05-2018, 08:01 PM

So the multi layer steel gaskets are a gm product.
Also my headers arrived like the rest...
Did y’all receive header bolts with your purchase? I’m guessing mine fell out of the box if they were in there in the first place.

cornerstone · 10-05-2018, 08:05 PM

They do fit quite well though.

Bobbed72 · 10-07-2018, 06:59 PM

Quote:

Originally Posted by 19SIKtySix

Here's a couple more pics to show the quality of the shorty headers.

Attachment 1825665

Attachment 1825666

Attachment 1825667

Attachment 1825668

Attachment 1825669

I got the shorty's on mine also and I notice in your pics different exhaust gaskets. Are those some you threw in the box for safekeeping or did they send those? All I got where the style in the first pic with the clamps.

crakarjax · 10-09-2018, 02:12 PM

Has anyone used the f-body long tube speed engineering headers on a C10? I have an fbody oil pan and want to find longtubes that don't have below the pan much if at all.

08-23-2018, 10:55 AM	#78
rgrhoward Registered User Join Date: May 2015 Location: Tacoma Posts: 18	Re: Speed Engineering LS Swap Headers Findings Out of curiosity, has anyone measured the flange thickness on these headers? I do not see it listed on the web site. Also, any idea where they are made?

08-24-2018, 08:37 AM	#80
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Speed Engineering LS Swap Headers Findings Eyeballing, they look like 3/8” flanges. I imagine they are Asia-built, but very nicely done __________________ -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

08-24-2018, 09:28 PM	#81
slowcpe Registered User Join Date: Sep 2013 Location: Evansville, IN Posts: 1,774	Re: Speed Engineering LS Swap Headers Findings Looks like I may have to order a set for my Level 1 DM truck. For once I don’t have to buy the most expensive piece out there. __________________ Ryan 1967 Red Stepside..."Laymond" http://67-72chevytrucks.com/vboard/s...40#post6441840 1972 Medium Olive SWB-Chester http://67-72chevytrucks.com/vboard/s...d.php?t=759628 1967/71 Blue SWB C10..SOLD 1977 SWB K10..my grandpa's.....never should have sold

08-26-2018, 02:32 PM	#82
RockhoundII Registered User Join Date: May 2016 Location: Oregon Posts: 97	Re: Speed Engineering LS Swap Headers Findings Here they are in my 79 Blazer. They clear the frame just fine, but require cutting on the passenger side of the 4l80E bellhousing. I had the same packaging issues some other people have mentioned, my driver side collector is damaged. I've had them bolted up to an LS3 with a 6L80E in the same truck and had no clearance issues whatsoever. Attached Images

08-27-2018, 06:12 PM	#85
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: Speed Engineering LS Swap Headers Findings update. installed mine last weekend in my 67 with a 4-6 drop, 5.3 dbw with 4l60. fit perfect, no trimming, no cutting no fabbing. nada... cleared the tranny and the starter no problem. only part that sucked was I had to remove my brake master cylinder and booster to get the driver side in, now I gotta re bleed em again. __________________ 1967custom

08-28-2018, 05:19 PM	#86
bs46488 Registered User Join Date: May 2014 Location: San Diego, CA Posts: 547	Re: Speed Engineering LS Swap Headers Findings I bought a set of the long tube 1 3/4 based on this thread. 5.3 with 4l65e and 3/5 drop in the truck. The box showed up a little banged up but I just grabbed a crescent wrench and straighten things out. The headers fit with no issues. I reused the factory trans cooler hard lines, so I needed to make some "adjustments" to the line to get them not to touch. I installed the passenger side from the top. Drivers side from the bottom. __________________ Project Engine Stand 1972 SWB conversion: http://67-72chevytrucks.com/vboard/s...d.php?t=673914 1970 Nova: http://67-72chevytrucks.com/vboard/s...d.php?t=708161

09-14-2018, 04:50 PM	#87
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	Re: Speed Engineering LS Swap Headers Findings I purchased the upgraded gaskets with mine, but not sure which gasket goes against the block and which one goes against the header. Haven't looked at them that closely, but it dawned on me while looking through this thread. Anyone have a pic or explanation on how I should install them? Thanks, __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

09-17-2018, 09:55 AM	#89
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	Re: Speed Engineering LS Swap Headers Findings Thanks aggie. I hadn't seen a two gasket set up, so I was confused. I guess they just sent the standard ones and the upgraded ones. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

09-21-2018, 01:22 AM	#91
62chevy302 hillbilly Join Date: Apr 2007 Location: hampton,tn Posts: 459	Re: Speed Engineering LS Swap Headers Findings Are the upgraded gaskets gm stock manifold mls gaskets? __________________ -1962 C-10

09-29-2018, 08:26 PM	#93
62chevy302 hillbilly Join Date: Apr 2007 Location: hampton,tn Posts: 459	Re: Speed Engineering LS Swap Headers Findings Ok i will be waiting on your reply __________________ -1962 C-10

09-29-2018, 09:24 PM	#94
62chevy302 hillbilly Join Date: Apr 2007 Location: hampton,tn Posts: 459	Re: Speed Engineering LS Swap Headers Findings I have a 04 6.0 truck block __________________ -1962 C-10

10-01-2018, 01:08 PM	#95
19SIKtySix Registered User Join Date: Oct 2012 Location: Fresno, CA Posts: 119	Re: Speed Engineering LS Swap Headers Findings I don't have them installed yet, but for those asking about the gaskets I have a set of the shorty headers from Speed Engineering. Overall they look like quality headers for the price of them. They come with the standard "paper" gaskets and the upgraded gaskets are similar to the OEM style. __________________ Chuck Instagram: c_lo_garage Check out my 1966 C10 project "El Viejito" here: http://67-72chevytrucks.com/vboard/s...d.php?t=674614

10-01-2018, 01:11 PM	#96
19SIKtySix Registered User Join Date: Oct 2012 Location: Fresno, CA Posts: 119	Re: Speed Engineering LS Swap Headers Findings Here's a couple more pics to show the quality of the shorty headers. __________________ Chuck Instagram: c_lo_garage Check out my 1966 C10 project "El Viejito" here: http://67-72chevytrucks.com/vboard/s...d.php?t=674614

10-05-2018, 08:01 PM	#97
cornerstone Registered User Join Date: Apr 2014 Location: Azle,Texas Posts: 2,248	Re: Speed Engineering LS Swap Headers Findings So the multi layer steel gaskets are a gm product. Also my headers arrived like the rest... Did y’all receive header bolts with your purchase? I’m guessing mine fell out of the box if they were in there in the first place. Attached Images

10-05-2018, 08:05 PM	#98
cornerstone Registered User Join Date: Apr 2014 Location: Azle,Texas Posts: 2,248	Re: Speed Engineering LS Swap Headers Findings They do fit quite well though. Attached Images



Register or Log In To remove these advertisements.

10-09-2018, 02:12 PM	#100
crakarjax Registered User Join Date: Dec 2009 Location: Kirkland, WA Posts: 1,302	Re: Speed Engineering LS Swap Headers Findings Has anyone used the f-body long tube speed engineering headers on a C10? I have an fbody oil pan and want to find longtubes that don't have below the pan much if at all. __________________ 1968 LWB C20 / AC / Wood Bed

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Register or Log In To remove these advertisements.