Project: L-body headers

[ForcedFirebird]

Well the time has come, and I have been planning on making some l-body headers for a while and a couple of the members here have stepped up to the plate so this can become a reality!

MY91GT(Z) has sent me the modified headers he bought from johnnymossville.

Sorry 91GT, but being sick last weekend, all I did was lay in bed

So. I have the headers here at the shop now, and got them bolted to a spare block and heads I had here. Come to find out the headers I started tacking together were on the right track! A little different in the routing, but the primaries were almost in the same exact position.

Now, I need more help from the Beretta/Corsica owners. The S&S's are still standing quite a ways off the front head and appear to me that they won't clear a stock fan. Can someone measure the distance from the fan motor to the front head where it meets the block (maybe even a pic)? I know loner's turbo headers I built used exactly 1/2 of a u-bend (about the same as the S&S), and we had to swap his fan out.

I might take some pics with my cell phone, but really would rather wait till I have my wife's digi with me (mine crapped the bed).

Here's what I had started a while ago...







I'm looking to sell these for about $500-550 coated (maybe via Ben's store).

Stay tunes for more pics. Today I am cleaning up the welds and getting all the measurements taken, and will probably start on the jig to make them consistent

-John

[robertisaar]

I'm looking to sell these for about $500-550 coated (maybe via Ben's store).

if you can mock up some w-body ones for that price, i'm sure you'll have interest as well...

[IsaacHayes]

The SS fit with a 96 front fan.

[ForcedFirebird]

The SS fit with a 96 front fan.

IIRC Loner's was a 94. Would you mind takig a tape measure to it and getting me a pic? Kep the tape as level as possible to the ground.

I actually changed the primary design on the pics above to compensate for this, just don't know if it was enough.

EDIT: I also noticed these S&S had the crossover brought in a bit, actually interferes with the rear head if the flange isn't in the correct location...

[IsaacHayes]

What do you want me to measure on my 94 exactly? I don't know where they hit at... The 96 fan I think has a smaller motor..

[mickaz]

check out for clearance for a 4t60-e. It will be a good seller.

[MY91GT(Z)]

the 96 motor is bout 1/2 to 3/4 inch shorter its in barry's post in the show room section on bstuff.

and yes that flange problem does make it a slight pita but not to bad from my prior experience. and when you do the crossover have it angled up at least another 5* or so, so that it clears the older 5spd mount as i had to modify the brack and woody on bstuff who has my old set made a slight dimple to clear the tranny and bracket

[Azrael]

These might even fit the 90's N-bodies if it clears a 4T60-e. At the very least they'll be a hell of a lot closer than the 99+ N-body headers.

[IsaacHayes]

Yes these would fit N bodies, L bodies, and probably J bodies too. Possibly W bodies too. But not the newer W/N bodies, those of course would use unmodified SS.

[1988GTU]

Fitting over the 3t40 would make it just about universal far as tranny/headers fitment. Fitting a L body would open it to more platforms and fit a huge crowd. Dont need to make them fit the newer W and N bodies as that is already in production.... Unless you just want to cut throats, would be LOL and a slap in the other manufacturer's face.

[SappySE107]

As soon as I have specs and some pictures, they will be listed on the WOT-Tech store.

[robertisaar]

As soon as I have specs and some pictures, they will be listed on the WOT-Tech store.

VERY good to hear...

[asylummotorsports]

As I stated in my response on B'Net, the only issue with the 3t40 is #1 pipe, and the hump in the trans.

I didn't get a pic before mine went on, sorry, but if you can make them fit the 3t40 they will fit the other combinations as well.

Fan isn't a huge issue even on the early ones. I just cut off one of the 4 spokes and it's still plenty strong enough.

[MY91GT(Z)]

these headers were modified to fit over 3t40 its the old style 91 older 5spd trannies are what has the slight issue which may be the same issue that asylum is sayin but im also not sure what johnny did to these headers to get them to fit

[bszopi]

The main reason the S&S have to be reworked for L-bodies as nothing to do with the front header, but everything to do with the rear header. Therefore, this may not work with many other body styles. The late model N-bodies have the header going over the steering rack, whereas with the L-body, it must go under the steering rack. So depending on the various body styles, the rear header will probably be different for each body, as well as between years.