Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

What headers to use with ZZ4 Aluminum Heads

Old 03-23-2007, 11:20 AM
  #1  
Member
Thread Starter
 
pr1689's Avatar
 
Join Date: Sep 2006
Location: Shawnee, KS
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc Z28
Engine: 350 5.7L (rebuilding now)
Transmission: 700R4 shift kit
Axle/Gears: 3.73, 9-Bolt, stock posi
What headers to use with ZZ4 Aluminum Heads

I think I am in a predicament here. I had purchased from Jet a set of Hooker 2055's to install on my 87 IROC, 350 40 over. I'm installing a ZZ4 cam and have the aluminum ZZ4 heads, casting # 10088113.

The heads were an after-thought and I got them quite reasonably and decided to go with them rather than the vortec 906 castings I had. The aluminums have been ported and new springs, seats, seals, etc done. Well, I had already purchased the Hooker 2055's and now I don't think they will fit with these heads due to the D-port.

Does anyone know if they will work? Hooker Tech Support says no, but Chris at TPIS says they will and they do it fairly often.

If they won't fit, what headers would you all recommend to use with these heads, keeping in mind that I do not have duals, and have a high-flow cat, 3" pipes all the way back.

Thanks in advance for all advice and suggestions!

Thanks,

Pat (PR1689)
Old 03-23-2007, 11:52 AM
  #2  
Supreme Member

 
84 z28's Avatar
 
Join Date: Apr 2006
Location: Rochester NY
Posts: 1,801
Received 21 Likes on 19 Posts
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: What headers to use with ZZ4 Aluminum Heads

These will sure fit.

http://store.summitracing.com/partde...5&autoview=sku

Actually those are long tube headers sorry.

Last edited by 84 z28; 03-23-2007 at 11:57 AM.
Old 03-23-2007, 12:35 PM
  #3  
Supreme Member

iTrader: (4)
 
obeymybird's Avatar
 
Join Date: Sep 2005
Location: PA
Posts: 1,087
Received 50 Likes on 44 Posts
Car: 92 camaro RS
Engine: LSA
Transmission: Magnum F
Axle/Gears: TNT 8.8 wavetrac 3.73
Re: What headers to use with ZZ4 Aluminum Heads

same header im using on my fastburn heads it is the best fitting shorty header for these heads you sould have no problem.
Old 03-23-2007, 01:04 PM
  #4  
Member
Thread Starter
 
pr1689's Avatar
 
Join Date: Sep 2006
Location: Shawnee, KS
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc Z28
Engine: 350 5.7L (rebuilding now)
Transmission: 700R4 shift kit
Axle/Gears: 3.73, 9-Bolt, stock posi
Re: What headers to use with ZZ4 Aluminum Heads

Which header are you using? Is it the one that 84Z28 listed from Summit?

I really appreciate all the help and advice you guys are giving, thanks a bunch. Using those long tube headers, seems like I will be losing some ground clearance and such huh?

Pat
Old 03-23-2007, 01:36 PM
  #5  
Supreme Member

iTrader: (4)
 
obeymybird's Avatar
 
Join Date: Sep 2005
Location: PA
Posts: 1,087
Received 50 Likes on 44 Posts
Car: 92 camaro RS
Engine: LSA
Transmission: Magnum F
Axle/Gears: TNT 8.8 wavetrac 3.73
Re: What headers to use with ZZ4 Aluminum Heads

no i have the hooker 2055's fit like a glove
Old 03-23-2007, 01:40 PM
  #6  
Member
Thread Starter
 
pr1689's Avatar
 
Join Date: Sep 2006
Location: Shawnee, KS
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc Z28
Engine: 350 5.7L (rebuilding now)
Transmission: 700R4 shift kit
Axle/Gears: 3.73, 9-Bolt, stock posi
Re: What headers to use with ZZ4 Aluminum Heads

Ok, that's awesome news to know. I was told by Hooker Tech support that they would not fit because of the D-Port exhaust. That the 1 5/8" wouldn't cover it properly and that I needed 1 3/4" otherwise it would leak.

How do you like the 2055's? From everything I've read on them, they are to be pretty good.

Thanks,

Pat
Old 03-23-2007, 01:41 PM
  #7  
Supreme Member

 
84 z28's Avatar
 
Join Date: Apr 2006
Location: Rochester NY
Posts: 1,801
Received 21 Likes on 19 Posts
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: What headers to use with ZZ4 Aluminum Heads

I have the the hedman 68468 for my car. i havent put them on yet but I have seen pic's and I dont thnik its to bad but I am also have moroso spial muffler for a true dual set up and it exits right before the rear tire those mufflers save alot of space.
Old 03-23-2007, 01:47 PM
  #8  
Supreme Member

iTrader: (4)
 
obeymybird's Avatar
 
Join Date: Sep 2005
Location: PA
Posts: 1,087
Received 50 Likes on 44 Posts
Car: 92 camaro RS
Engine: LSA
Transmission: Magnum F
Axle/Gears: TNT 8.8 wavetrac 3.73
Re: What headers to use with ZZ4 Aluminum Heads

i think that they are the best shorty header out there and the y-pipe is great i run 3'' from the y-pipe back. when you get your headers test fit your header gasket this should show you where the haeder will sit i think i did grind a little bit of the top of the gasket and top of the header tube just for peace of mind.
Old 03-23-2007, 01:48 PM
  #9  
Member
Thread Starter
 
pr1689's Avatar
 
Join Date: Sep 2006
Location: Shawnee, KS
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc Z28
Engine: 350 5.7L (rebuilding now)
Transmission: 700R4 shift kit
Axle/Gears: 3.73, 9-Bolt, stock posi
Re: What headers to use with ZZ4 Aluminum Heads

Hey, thanks for the info. I will have to recheck everything once the hooker 2055's arrive. How do the moroso's sound? Do you like them a lot??

Thanks,

Pat
----------
Thanks ObeyMybird! I appreciate all the time everyone has spent answering questions for me.

I am rebuilding the engine and am anxious to get it back in and on the street. I need a new muffler as well. I have a hi-flow cat and 3" all the way to the rear.

I have been trying to listen to some of the sound clips, but not sure which muffler to choose. Which ones do you all like?

Thanks,

Pat

Last edited by pr1689; 03-23-2007 at 01:51 PM. Reason: Automerged Doublepost
Old 03-23-2007, 01:52 PM
  #10  
Supreme Member

 
84 z28's Avatar
 
Join Date: Apr 2006
Location: Rochester NY
Posts: 1,801
Received 21 Likes on 19 Posts
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: What headers to use with ZZ4 Aluminum Heads

Very loud badass !
Old 03-24-2007, 01:03 AM
  #11  
Moderator

iTrader: (1)
 
Kevin91Z's Avatar
 
Join Date: Jul 1999
Location: Orange, SoCal
Posts: 10,942
Received 19 Likes on 17 Posts
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: What headers to use with ZZ4 Aluminum Heads

Originally Posted by pr1689
Ok, that's awesome news to know. I was told by Hooker Tech support that they would not fit because of the D-Port exhaust. That the 1 5/8" wouldn't cover it properly and that I needed 1 3/4" otherwise it would leak.

Thanks,

Pat
That's the experience I have with 1 5/8" headers and raised-exhaust port heads. Check them and see how badly they're off. You can grind on the top of the flange if you're careful. Also, use a gasket with a raised port design, like ones for an L98 Corvette or LT1.
Old 03-24-2007, 12:43 PM
  #12  
Supreme Member

iTrader: (4)
 
obeymybird's Avatar
 
Join Date: Sep 2005
Location: PA
Posts: 1,087
Received 50 Likes on 44 Posts
Car: 92 camaro RS
Engine: LSA
Transmission: Magnum F
Axle/Gears: TNT 8.8 wavetrac 3.73
Re: What headers to use with ZZ4 Aluminum Heads

the fastburn heads have a higher raised d-port then the L-98 an LT1 heads and i got my hookers to seal you should be right on the money with your set-up
Old 03-24-2007, 01:29 PM
  #13  
Member
Thread Starter
 
pr1689's Avatar
 
Join Date: Sep 2006
Location: Shawnee, KS
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc Z28
Engine: 350 5.7L (rebuilding now)
Transmission: 700R4 shift kit
Axle/Gears: 3.73, 9-Bolt, stock posi
Re: What headers to use with ZZ4 Aluminum Heads

Thanks everyone for all the information and advice! As soon as my headers arrive, I will match them up and see how it goes! I am hoping to get the engine done and installed by the middle of the week!

Thanks again,

Pat
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lt500r55
Tech / General Engine
6
09-01-2021 01:30 PM
midge54
LTX and LSX
21
12-27-2019 04:14 PM
bamaboy0323
Tech / General Engine
25
09-03-2015 06:07 AM
bdads
DIY PROM
3
08-24-2015 06:01 PM
Zeek1041
Theoretical and Street Racing
6
08-21-2015 08:45 PM


Thread Tools
Search this Thread
Quick Reply: What headers to use with ZZ4 Aluminum Heads



All times are GMT -5. The time now is 11:46 AM.