Headman Header Install
#1
Headman Header Install
Howdy,
I just started taking the stock manifolds off my 85 and was looking for a good way to mount the rear brackets for the a/c compressor and the alternator. It looks like I may be able to reuse the stock stuff but I wont know till I get that far. What did you do?
Thanks
I just started taking the stock manifolds off my 85 and was looking for a good way to mount the rear brackets for the a/c compressor and the alternator. It looks like I may be able to reuse the stock stuff but I wont know till I get that far. What did you do?
Thanks
#5
Melting Slicks
This is the one i used, comes with the 02 sensor wired up with the connector,
have you welded in the 02 bung yet ?
http://www.ebay.com/itm/Walker-3-wire-heated-O2-Oxygen-Sensor-Conversion-HEGO-/200962704758?hash=item2eca4f8576&vxp=mtr
have you welded in the 02 bung yet ?
http://www.ebay.com/itm/Walker-3-wire-heated-O2-Oxygen-Sensor-Conversion-HEGO-/200962704758?hash=item2eca4f8576&vxp=mtr
#6
Melting Slicks
This is the one i used, comes with the 02 sensor wired up with the connector,
have you welded in the 02 bung yet ?
http://www.ebay.com/itm/Walker-3-wire-heated-O2-Oxygen-Sensor-Conversion-HEGO-/200962704758?hash=item2eca4f8576&vxp=mtr
have you welded in the 02 bung yet ?
http://www.ebay.com/itm/Walker-3-wire-heated-O2-Oxygen-Sensor-Conversion-HEGO-/200962704758?hash=item2eca4f8576&vxp=mtr
#7
This is the one i used, comes with the 02 sensor wired up with the connector,
have you welded in the 02 bung yet ?
Walker 3 Wire Heated O2 Oxygen Sensor Conversion Hego | eBay
have you welded in the 02 bung yet ?
Walker 3 Wire Heated O2 Oxygen Sensor Conversion Hego | eBay
#8
#9
Melting Slicks
I used stainless allen head, but you have to modify an allen key (shorten it) to make it work, and its tough with the hedmans, they seem to start bending around pretty quick so clearance is limited on some of them.
Last edited by blackozvet; 04-08-2015 at 07:53 AM.
#10
You won't be able to use the bracket that connects to the 2 header bolts for the cylinder 1 exhaust runner of the header.
You have to use the rear bar type bracket. Keep the stud that was from the exhaust manifold. You need to make a spacer. You can use a pipe from a local hardware store and just cut it to fit. Don't get it too big, and for the best results don't get one with a split down the center.
You must have at least 2 supports for the alternator or it will break over time.
You have to use the rear bar type bracket. Keep the stud that was from the exhaust manifold. You need to make a spacer. You can use a pipe from a local hardware store and just cut it to fit. Don't get it too big, and for the best results don't get one with a split down the center.
You must have at least 2 supports for the alternator or it will break over time.
#11
You won't be able to use the bracket that connects to the 2 header bolts for the cylinder 1 exhaust runner of the header.
You have to use the rear bar type bracket. Keep the stud that was from the exhaust manifold. You need to make a spacer. You can use a pipe from a local hardware store and just cut it to fit. Don't get it too big, and for the best results don't get one with a split down the center.
You must have at least 2 supports for the alternator or it will break over time.
You have to use the rear bar type bracket. Keep the stud that was from the exhaust manifold. You need to make a spacer. You can use a pipe from a local hardware store and just cut it to fit. Don't get it too big, and for the best results don't get one with a split down the center.
You must have at least 2 supports for the alternator or it will break over time.
I reread the post and I think I get it.
Last edited by spro2395; 04-08-2015 at 08:52 AM.
#13
#14
Team Owner
Here's a pic of a brace for the alternator. Not my engine but you can get a good idea of how it works.
If you don't have access to a welder, you can use 1/2" EMT conduit. After measuring the length you need, Just flatten the ends making sure the angles are right, and drill holes at each end.
I didn't use a heated O2 sensor on my '87 headers. I welded a bung in the driver's side collector and installed the existing sensor. The collector takes longer to get hot but it works. The existing wiring was long enough.
You will find that re-installing the OEM GM large starter will be a royal PITA. I would recommend getting a new Hitachi-style starter. I picked up a Summit clockable Mini-starter and it was a bolt-in. The car's wiring didn't need any modifications at all.
If you don't have access to a welder, you can use 1/2" EMT conduit. After measuring the length you need, Just flatten the ends making sure the angles are right, and drill holes at each end.
I didn't use a heated O2 sensor on my '87 headers. I welded a bung in the driver's side collector and installed the existing sensor. The collector takes longer to get hot but it works. The existing wiring was long enough.
You will find that re-installing the OEM GM large starter will be a royal PITA. I would recommend getting a new Hitachi-style starter. I picked up a Summit clockable Mini-starter and it was a bolt-in. The car's wiring didn't need any modifications at all.
#15
Here's a pic of a brace for the alternator. Not my engine but you can get a good idea of how it works.
If you don't have access to a welder, you can use 1/2" EMT conduit. After measuring the length you need, Just flatten the ends making sure the angles are right, and drill holes at each end.
I didn't use a heated O2 sensor on my '87 headers. I welded a bung in the driver's side collector and installed the existing sensor. The collector takes longer to get hot but it works. The existing wiring was long enough.
You will find that re-installing the OEM GM large starter will be a royal PITA. I would recommend getting a new Hitachi-style starter. I picked up a Summit clockable Mini-starter and it was a bolt-in. The car's wiring didn't need any modifications at all.
If you don't have access to a welder, you can use 1/2" EMT conduit. After measuring the length you need, Just flatten the ends making sure the angles are right, and drill holes at each end.
I didn't use a heated O2 sensor on my '87 headers. I welded a bung in the driver's side collector and installed the existing sensor. The collector takes longer to get hot but it works. The existing wiring was long enough.
You will find that re-installing the OEM GM large starter will be a royal PITA. I would recommend getting a new Hitachi-style starter. I picked up a Summit clockable Mini-starter and it was a bolt-in. The car's wiring didn't need any modifications at all.
#16
Team Owner
Yes, the OEM starter has to be removed to get the passenger side header into place. To get the OEM starter back in, do not bolt the header in place. It's best to have a helper hold onto the header so that it can be moved around as the starter and cables are re-installed.
#17
What if anything did you guys use for heat shielding ? On the passenger side the transmission lines and starter wiring are quite close and on the drivers side the brake lines an close as well. I haven't got to the spark plugs yet to see if any of the wires will be a problem.
#19
Melting Slicks
What if anything did you guys use for heat shielding ? On the passenger side the transmission lines and starter wiring are quite close and on the drivers side the brake lines an close as well. I haven't got to the spark plugs yet to see if any of the wires will be a problem.
#20