4l80 and headers?

[Vandals909]

Anyone from personal experience have any issues with headers hitting the 4l80?


Not sure if Doug Thorley headers either 1 3/4 hit the trans?

Could I get away with running TBSS or LS3 Camara style headers?

I was told some have to trim an ear off the 4l80 mount to clear the headers?

[ssmonte18]

Hooker now makes headers for C10 trucks with LS swaps. I have a set (with a 4L60E) and they fit great. I believe they built their product line around a 4L80E though.

[Wasted Income]

First thing I do when I come into possession of a 4L80E is fire up the sawzall and get rid of those damn ears/tabs off the bellhousing. They are ALWAYS in my way. lol

[Willie Makeit]

I have a 4L80e with the Doug Thorley's in a '67. Its a very very close fit, but they do clear. Barely.

[Vandals909]

Willie. What size headers do you have?

[Shon]

they fit, cut the ears as mentioned though.

[tony2tall]

I just put the 1 7/8 doug thorley headers on with a 4l80e. They clear fine, but I just found out that a column shift with the hard linkage is a no go. The header exits right in front of the bracket mounted to the trans. I'm switching over to a floor shift, but I think a cable linkage would also work if you wanted a column shift.

[ssmonte18]

[ssmonte18]

http://ls1tech.com/forums/conversion...m-preview.html

[Shon]

Column shift works with Lokar rod unit. Its what I used to have, although you have to put all the 'stuff' on the trans before headers b/c there is no room once headers are in place.

[Robznob11]

Originally Posted by ssmonte18

Attachment 1501927

Curious??? Where did you get the trans x member? Mine looks like that but I made it....

[Vandals909]

The parts list just keeps growing. So this is the part I will need if I run DT headers

http://www.speedwaymotors.com/Lokar-...FQ-oaQod3ysHIA

[Vandals909]

And these are the "ears" you guys are talking About? They are cut off in the photos.

No structural integrity lost by cutting them off right?

http://www.tbssowners.com/forums/4l8...fications.html

[tony2tall]

I just tried the rod linkage from cpp and there is not enough clearance with the dt header. I don't think there is really any difference between that and the Lokar one.

[foamypirate]

Originally Posted by tony2tall

I just tried the rod linkage from cpp and there is not enough clearance with the dt header. I don't think there is really any difference between that and the Lokar one.

Lokar says you can bend the rod to clear schtuff. Not sure if the CPP kit is the same.

[Vandals909]

Tony are those headers the 1 5/8 or the 1 7/8? I believe they exit at a different angle

[tony2tall]

Yes the cpp bends but that's not the issue. Its the bracket that comes off the trans. I have
The 1 7/8 headers

[ssmonte18]

Originally Posted by Robznob11

Curious??? Where did you get the trans x member? Mine looks like that but I made it....

Part of the kit from Holley. I think I paid $220. Bolted right in, no hassle.

[Shon]

Originally Posted by tony2tall

I just tried the rod linkage from cpp and there is not enough clearance with the dt header. I don't think there is really any difference between that and the Lokar one.

Which DT headers are those? They are not the Long Tube headers by DT for these trucks. Granted its TIGHT but the LT headers exit right at the shifter hook up....these look like shorty headers....

[Shon]

I will also add, my 80e/Lokar Rod/1 5/8" DT LT headers; I could only pull the column shifter down to 3rd, but I had the first run of DT LT headers, I think they redesigned them so you could actually use the stock rod and others I have talked to could get trans to 1st with new header design.

[Vandals909]

Would be nice if someone from DOUG Thorley chimed in before I spend the money on something designed to fit that it is not clear if it will have figment issues with my 4l80e shifter

[Shon]

Originally Posted by Vandals909

Would be nice if someone from DOUG Thorley chimed in before I spend the money on something designed to fit that it is not clear if it will have figment issues with my 4l80e shifter

I would first search to see if ANYONE has a set, when I was a dealer they were made in batches that were far and few between and got harder and harder to get, I could buy the whole batch and still wait months....so it might be a mute issue....
But your original question was will the DT hit the trans-the answer is no they fit.

[tony2tall]

To clarify for me: 71 c10 2wd
2005 6.0 w 4l80e 2wd
Cpp sheet metal stands and slider mounts
Doug thorley tri-y headers clear the trans but the cpp rod shift linkage mechanism connection at the trans sits right where the header exits. Maybe some creative exhaust work could make it work, but I'm switching over to a floor shifter.
Hope this helps!

[tony2tall]

I'll also post the exact dt part number this evening to give you all the info I can.

[Andy4639]

I used the S/S works headers, 1 /34" tube headers with 2.5" aluminized pipe all the way back. S/S Megaflows also. have no issues with the clearances on either side. The drivers side has the gear cable mounted so it's a little close but has plenty of room to be took out of the truck without taking the exhaust out.
Best pictures I have of them.