Big Block headers
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Joined: Jul 2001
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From: SYLVANIA,OHIO,USA
Car: 89 Formula
Big Block headers
Ok im going to bring this back again, if any body has pics of the mods they had to make for the headers to fit would be great. I tried putting them on again and the driver side will not fit right at all. Looks like the brake lines have to be moved, part of the cross member has to be cut, the motor mount on the block needs notched. Im so fed up with this project grrrrrrrrrrr.
Thanks Mike
Thanks Mike
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
sounds typical of any header install. I had to notch my factory kmember to fit SBC headers and move brake lines as well. I swapped to solid motor mounts and a tubular kmember and now I have all the room in the world to move around my headers.
Joined: Feb 2005
Posts: 4,498
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From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
Same here. Get a tube K-memeber and stop worrying. I tossed in long tubes for my SBC in about 20minutes, by myself.
Joined: Mar 2000
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Check the Engine Swap forum. There's a BBC sticky there, and has links within it discussing headers.
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iTrader: (5)
Joined: Jan 2002
Posts: 13,622
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
i'm using moroso solid mounts, they're specific for 82-92 camaro chassis by the way.
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Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
search the mod of the drag racing board--stephen...something? for solid motor mounts and he had a post about them and the numbers needed. I don't remember off hand
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From: Chicago
Car: Only a daily driver, but comin home
Engine: I have one that runs ;)
Transmission: Caged hamster that runs really fast
Axle/Gears: They are round, I know that much
did that fix the problem with the headers Steve?? Cause there might be a slightly large size engine in there next summer if all goes well for me.
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iTrader: (5)
Joined: Jan 2002
Posts: 13,622
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
yea the tubular kmember fixed the header issue, the solid motor mounts fixed the motor moving side to side issue....no idea why though
Thread Starter
Senior Member
Joined: Jul 2001
Posts: 518
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From: SYLVANIA,OHIO,USA
Car: 89 Formula
God i hate my car, i bought the solid mounts, out them in and tried to put the headers in. The darn things still dont want to go in. I had to beat some of the oil pan and cut some more of the cross member and it still dont want to fit. Maybe i have the frame mounts on wrong. I have the one that says DL on the driver side and the one that says PR on the passenger side. if thats not it what is causing the problem. im so sick of this problem. I might just go with truck manifolds.
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iTrader: (5)
Joined: Jan 2002
Posts: 13,622
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
truck manifolds will probably be the wrong angle. just so you know my initial header install before the tubular crossmember took me around 8 hours non-stop and I work faster than most people on cars. You'll regret not finishing up the cutting to get them to work. Just take your time and mock them up then remove some material and repeat until it fits well.
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From: Springfield,Mo
Car: 87 Berlinetta,work in progress
Engine: 468 BB,still in the build process
Transmission: TH350,3500 stall
Axle/Gears: 9" Ford,learning how to live under
Are you using the Hooker BB headers?
I don't recall having to cut muck on the crossmember,I did have to trim on the lower A arm brackets,and pound on the firewall quite a bit.I had stock rubber mounts,didn't have to trim the engine mounts any,but I did have to remove the distributor and valve covers and jack the engine up until the heads were crammed into the firewall.
The good news,you will LOVE the way a 3rd gen feels with a bigblock.The bad news is,if you think the driver's side header is a bitch,just wait until you do the passenger side!I promise,it's worth it in the end,though.I had to sell my car a couple of months ago due to losing my job.I'm back to work now,but it's a very empty feeling to walk into the shop and my baby ain't sitting there,waiting to be thrashed.
I don't recall having to cut muck on the crossmember,I did have to trim on the lower A arm brackets,and pound on the firewall quite a bit.I had stock rubber mounts,didn't have to trim the engine mounts any,but I did have to remove the distributor and valve covers and jack the engine up until the heads were crammed into the firewall.
The good news,you will LOVE the way a 3rd gen feels with a bigblock.The bad news is,if you think the driver's side header is a bitch,just wait until you do the passenger side!I promise,it's worth it in the end,though.I had to sell my car a couple of months ago due to losing my job.I'm back to work now,but it's a very empty feeling to walk into the shop and my baby ain't sitting there,waiting to be thrashed.
Thread Starter
Senior Member
Joined: Jul 2001
Posts: 518
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From: SYLVANIA,OHIO,USA
Car: 89 Formula
Ya im using the hooker headers. When i had the stock mounts in, i got the passenger side in with little pounding to the floor and firewall. The driver side didnt want to go in at all. So i cut the crossmember where the header was hitting and still it wont go in. I cant even get the passenger side to fit now with the solid mounts. I just feel like im doing so much and havent gotten anywhere. It sucks that you had to sell yours, do you have any pics?
Mike
Mike
Joined: Jan 2004
Posts: 1,761
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From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Ya im using the hooker headers. When i had the stock mounts in, i got the passenger side in with little pounding to the floor and firewall. The driver side didnt want to go in at all. So i cut the crossmember where the header was hitting and still it wont go in. I cant even get the passenger side to fit now with the solid mounts. I just feel like im doing so much and havent gotten anywhere. It sucks that you had to sell yours, do you have any pics?
Mike
Mike
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