Attn: 6cyl header owners running SR w/Bolt through frame.

[mr_manny]

Since my upper shackle bolt goes through the frame, I had to perform a mod on my 6-2-1 header.
If you look at the pic below, the area outlined in red was modified (w/ball-peen hammer) to accommodate the head of the shackle bolt.

This combination has a few draw-backs:
Bushing changes are a pain.
Greasable bolts are not an option, unless your zerk is on the threaded end (NOT bolt-head).
Possible stress to header caused by operator of ball-peen hammer

I am now looking for a replacement header, and am wondering what you SR guys are running?

thanks,
manny

SOR

DOWNEY

MAF

 

[grant5127]

Check these out---- http://www.marksoffroad.net/catalogue/Catalogue8.html the collector is in a little different position.... works better w/pto winch drive line also.........

 

[BELMONT148]

I went with MAF. Should know in a couple of days if it is going to work. From all of the pictures I saw, it should be fine. I will post up once I get mine. They are on sale right now too.

Jeremy

 

[mr_manny]

Jeremy,
Please let me know the results of your install

Here are some additional pics...thanks

 

[Poser]

Manny-


Hopefully these help and do not confuse you....



MAF two-piece ceramic headers with MAF 4+ shackle reversal that I run on my junk:

System was done by an ‘exhaust guy’ who is also a ‘wheeler.

 

[mr_manny]

Steve,
Everything helps, I definitely don't want to be sending anything back because it doesn't fit.

Based on your pics, If I go directly above your upper-bolt, It looks like I may have enough clearance without having to breakout the hammer

Do those collector clamps come w/SOR's headers...they look alot like MAF's.

I have already called/sent pics to Downey/MAF...SOR is next.

Thanks for the pics.

 

[iron_giant]

Manny,
It looks from the pictures like Poser's shackle hanger is below the frame, giving more clearance. If I'm not mistaken yours is drilled through the frame. The only way I can figure to fit it cleanly is to tap the shackle itself, or drop the hanger below the frame. I cut a nylock in half and thraded that in and it "works", but I would be more comfortable threading the shackle and tacking the other side.

 

[Poser]

Steve,
Everything helps, I definitely don't want to be sending anything back because it doesn't fit.

Based on your pics, If I go directly above your upper-bolt, It looks like I may have enough clearance without having to breakout the hammer

Do those collector clamps come w/SOR's headers...they look alot like MAF's.

I have already called/sent pics to Downey/MAF...SOR is next.

Thanks for the pics.

Those are MAF headers, NOT SOR....


fixed my post.


sorry.



I do not think that you will have fitment issues with the MAF headers.

 

[mr_manny]

David,
Mine does go through the frame, but from Poser's pics there seems to be enough room to accommodate a shackle w/bolt head.
The lower pipe was routed by his exhaust guy...so I'm thinkin some creative routing could be the answer I'm looking for

I do like your idea, maybe a jam-nut and tacking both sides?
Thanks

 

[mr_manny]

I sent pics/talked to ALL 2F header companies mentioned above, and only MAF said they would fit.
Header has been ordered...

Thanks again for the pics Steve,
manny

 

[mr_manny]

Finally got around to installing the new MAF bling

Exhaust shop was too busy, so Y pipe will have wait until tomorrow...

no clearance issues w/through frame shackle-reversal

I reckon the old header was Done:

 

[badass]

can i get an update on these, i want some, how do they sound, any performance? what are the things you like about them? thanks.

 

[antFJ]

even more ?'s - did you have to put half washers in or something like that to make sure the intake and headers mated properly against the head? OEM gasket? two? copper stuff? leaks?

 

[Downey]

I have zero reports of a Downey 3 into 2 into 1 Header NOT working with a shackle reversal. I've sold both for years (Downey style Header with shackle reversal kits) and never had clearance comments made. I personally have only had shackle reversals on my vehicles that had V8's. If anyone has had a clearance issue, I'd sure like to hear about it. Poser, maybe you've used this combination???

 

[mr_manny]

update
------

headers are installed on a 2F with a 1F intake manifold using a stock toyota gasket.

Since I had to modify the intake to fit the 2F, I chose to run copper washers and studs (no bolts).

things I like:
high quality finish
2 piece design makes for an easier install
fit
flange design
upper shackle bolt clearance
quieter then my previous header


things I'm not crazy about:
bends on 1st cylinder are kinda close to 2nd battery...no issues, just wish I had some additional clearance.
after 2 years, a bit of surface rust has already starting to form price I pay for living near beach.
had to make a block-off plate for the EGR-tube...would have preferred if MAF offered a model w/o EGR.
custom Y-pipe made by local exhaust guy was an additional $150


for the record,
when I called Downey back in 2006...the person who answered the phone couldn't confirm their headers would play nice with a SR 40 (with upper bushing bolt going THROUGH the frame).


hth,
manny