nesqwick_05

i need help deciding what headers to get for my lt1 swap, im not looking to anything to pricey, just something that will work for now until i can afford better ones

beedo

I bought the hedman shorties for 135.00 and the y pipe for 95.00. Ordered from summit, jegs is back order on the y pipe for about 3 weeks. I also to summit that jegs has 1-2 day shipping for free, they were going to charge me 30 something to ship.

net_coma

iTrader: (3)

I bought the Hedman emmisions things with y pipe for one cat for 349 including shipping. I could not find the ones beedo got when I ordered. No coating. LT1 sure looks good on my garage floor.

beedo

I didnt get the ones with the emmisions stuff on them. When you going to get started on it?

Klortho

The best headers are the Hedman 68479 for the painted and 66479 for the coated. These headers have the d-ports and also will clear the angle plugs as well. They have a matching y-pipe that fits like a glove. You will have to buy O2 bungs and have them welded in either the headers or the y-pipe though.

SlowCamaro88SC

do you have the part #,s I was think of geting hedmans and have them cerimaic coated here and are they D port and will they clear the angle plugs thanks

Firebat

iTrader: (7)

just go to summitracing.com and search for 68479 or 66479. Hedman makes a long-tube d port header too.

If you don't get ceramic coated then buy header wrap and put it on. Header wrap is probably more effective anyway but i'm no expert on that. Definitely cheaper.

ssean92

iTrader: (10)

i have heard that also, but rusts the headers out quicker.

SlowCamaro88SC

well for $405 I can get the 66479 ceramic coated cause it has to look good mine is a 86 IROC I had for around 20 year park in the garage it had 17,000 when I got , it was in a flood there no rust on it at all and dont know if it a keeper I had a new 69 camaro SS 396 and since 78 a 55 chevy Belair 2dr htp with 350 all ceramic front to back on exhaut and 410 posi it all done so sweet I wouldnt sell this one and the iroc I puting a 94 lt1 with 4l60E trans for now it sit on engine stand I still extending the wires on the wire harness plans are for 373 gears well that the plan

Firebat

iTrader: (7)

I think some people spray that 2000 degree spary paint on them and it seals the header wrap better to prevent rust. I don't know if thats total BS or not.

The old HS mechanics teacher always said if you don't coat em, them wrap em.

Stainless steel headers(SLP?) with ceramic coating with header wrap would be the ultimate.

SlowCamaro88SC

are these headers the short ones and can I use long headers ??

Mr.K

would the hooker headers for the 94-96 impala ss fit? i was talking to the counter guy @ the speedshop out here and they said i have to run the impala headers to keep it smog legal.

Klortho

Hedman makes a smog legal header for the 3rd gen cars. You just have to make the provisions for the O2 sensors.

zmack28

the headmans, ARE they for the 93-97 LT1's cause the info i read on summit said they wee for GEN I LT1's, Does it matter? Im not too keen on the headers.......
THanks

Firebat

iTrader: (7)

Use headers that are designed for an 82-92 firebird/camaro, 1 5/8" primary minimum. Headers made for a 93-97 won't fit in a 82-92.

Klortho

Hedman 68481 (painted $359.95 at Summit) or 66481 (coated $618.99 at Summit) smog legal in all 50 states. Shorty header with y-pipe from what the website looks like. Will fit angle plug heads as well. Best fitting header I have found for the LT1's going into a 3rd gen car.

SlowCamaro88SC

shorties suck, come on, there are no good long tube + y-pipe combos in 1 3/4 for this car??? ****, yet there are like 5 or 6 long tube header options for my GTO.

Firebat

iTrader: (7)

Hedman makes a d-port longtube header too, I think. Hooker longtube super comps will bolt up, they are 1 3/4". Search around on summitracing.com or jegs.com. Any thirdgen (82-92) header with 1 5/8" primary minimum made for a 350, shortie or longtube will work but as Klortho said, the Hedman shorty d-port header with its ypipe fits the best.

Klortho

Shorties keep the torque band where they are from stock, by the time you swap to the 6-speed crossmember and put long tube headers on the car you have major clearance issues. The Hedman's put everything back in the stock location and fit like a glove.

Plus he's in California as well and those shorties are the only ones that Hedman show that are 50 state legal.

And 1 3/4 are a waste on these motors anyway, the 1 5/8 to 3" primaries are just fine and I know alot of guys putting down a ton of HP though that size header.

SlowCamaro88SC

what did you do about the egr on back intake did you block it and does anyone sell a cover plate my swap is a 94 vette LT1 thanks

Firebat

iTrader: (7)

I bought LT1 egr block off plates from a guy on ebay.

inuyasha_lost

iTrader: (1)

Anyone have the PN for the hedman y-pipe? Cant seem to find the right one on summit

Klortho

17470

inuyasha_lost

iTrader: (1)

Thank You!!

92rs85berlintta

iTrader: (1)

why didnt anyone mention dyno dons headers? Seems like they would flow better being that they are 1 3/4. i would think 1 5/8 would be fine for a long tube but i would rather have the 1 3/4 on a shorty.

Also I noticed 66481 headmans are oval port and that wont work on a d port head. I just sold a set of headmans for 50$ for that very reason.

Klortho

The correct part number for the d-port angle plug headers are 68479. 1-3/4" headers are over kill for these engines since the ports on the heads are 1-5/8, you would have to hog out the exhaust ports just to keep the step down from happening which does something to the exhaust and kills performance, can't exaxtly remember what it is, but I read it somewhere on here about it.

He was needing smog headers, and the 66481 were the only ones that Hedman had listed with smog provisions.

92rs85berlintta

iTrader: (1)

It creates turbulance. In theory, its so close to the head the gas is still expanding so it shouldnt much matter. do you have a coated number for non emission d port?

Klortho

66479

92rs85berlintta

iTrader: (1)

I know this is really old, but has anyone tried the elites from heddman on a lt1?

racerx520

iTrader: (1)

i have a set of flowtech afterburner headers...theyre full length headers and theyre meant for any small block chevy v8...i dunno if you are looking for anything like this, but i'm selling them with a set of aluminum gaskets for 150 just to let you know....
-brian

92rs85berlintta

iTrader: (1)

They wont fit lt1 heads.

racerx520

iTrader: (1)

damn!!!! i want to get rid of these damn headers...someone sold them to me swearing they were shorty headers and they obviously arent and i'm pretty pissed....i just wnat to get rid of these so if anyone here knows anyone who wants headers for cheap with all the hardware i.e. top of the line aluminum gaskets and bolts please let them know because i just want these gone!

Bradlyj8Z28

iTrader: (2)

Sorry to intrude, will Edelbrock TES shorty 1 5/8 headers from an L98/LB9 engine work on the LT1 from the Vette and Camaro's?

Z28ricer

iTrader: (2)

Yes, but they dont completely cover the ports perfectly, however they will work, i've used them on two different LT1 swaps.

92rs85berlintta

iTrader: (1)

Will they bolt to the engine, yes. will they work, no. Its not something you want to buy to use on this swap since it doesn't cover the ports correctly. I tried a set and they leaked like crazy.

Z28ricer

iTrader: (2)

Thats funny, i've used them twice on two different swaps and neither leaked, nor were the ports off enough that it would come close to leaking, maybe you had a warped set, the difference on the ports was around 3/32nd of an inch.

ssean92

iTrader: (10)

I know this is a old post but does anyone know if they make a y-pipe for the headmen long tubes

Z28ricer

iTrader: (2)

Nope, just for the shorties.

J's T/A

iTrader: (2)

For my longtubes I got a drews xmember (skulte makes one too), a flowmaster Y collector, and then took it all to the exhaust shop to have them weld it all up to my mufflex 4inch catback.. the ground clearance now is just as good as my shorties used to be..

the size now is dual 2.5inch - single 4inch - dual 3inch out spintech muffer..

As for the edelbrock TES, it worked fine for me with no leaks, but kills the power above 330 or so rwhp.

ssean92

iTrader: (10)

do you have any pics?

J's T/A

iTrader: (2)

Here are some pics. The first shot is looking forward you can see the longtube collector tucked up nicely..excuse the slave cylinder I am in the process of machining down the mounting plate. The second is from the side of the crossmemember, as you can see the lowest point is the crossmember itself.

To get the exhaust in I still had to notch the a-arm mount and lift up the passenger side of the engine.

ssean92

iTrader: (10)

do you have any from the under side

J's T/A

iTrader: (2)

No, it is around ten degrees in my garage right now. I just ran out and snapped them. In a few days I will heat it back up when I put the slave cylinder back on and take a few more then.. any specific section you want me to focus on?

ssean92

iTrader: (10)

I am basicly wanting to see it so my echaust shop can use it to go by

J's T/A

iTrader: (2)

Ok, when I put the slave cylinder back on this week/weekend I will get few shots.

ssean92

iTrader: (10)

thanks alot

ssean92

iTrader: (10)

anything????

wht96

Ok guys im a little confused I was told any headers for an 82 - 92 camaro will fit the Lt1 as long as long as they were 1 5/8 or bigger. I just wanted to know why some of these dont work, also i had my heart set on a full mac exhaust so im wondering if these would fit??? please help i was litterally going to order these tomorrow and im going to hld off till i know for sure.

92rs85berlintta

iTrader: (1)

As long as they are 1 5/8 D port. The exhaust on the lt1 is 1 5/8 d port shaped. you will need at least 1 5/8 D port or 1 3/4. I recommend 1 3/4, since they don't even make 1 5/8th headers for lt1 F body's to begin with. Dyno Don makes some excellent headers for the swap.

Klortho

Uhh....yeah Hedman has a d-port header for third gens that has a matching y-pipe that can be bought and they're for angle plug heads.

Hedman #68479