emission heads causing problem for tri-y install

jb1dsl · Oct 4, 2004

I have a 66 fastback with a 289. The car originally had the old emissins but it was taken off and plugged with bolts on one side and looks like just broke off the other side. I'm trying to put on a set of tri-y headers but the bolts are getting in the way. Did any of you guys have emissions and what did you do to put headers on the car?

jb1dsl · Oct 5, 2004

no one run into this?

tomstir · Oct 7, 2004

Remove the bolts and put in plugs.

jb1dsl · Oct 7, 2004

what kind of plugs and where do i get them from. i wish it was that simple. i went to the machine shop and they said they did not know where to get a plug that will be flush and have reg. thread not tapered.

jb1dsl · Oct 7, 2004

please someone help im desperate.

anyone need some 66 california emission heads!!!!!

allcarfan · Oct 7, 2004

edelbrock performer package? does that have edelbrock heads?

Grind the bolts down....problem solved

jb1dsl · Oct 7, 2004

stock 66 cali heads.

yeah i thought about cutting bolts off but thought i could find plugs that fit

allcarfan · Oct 7, 2004

the bolts plug the holes already right?

jb1dsl · Oct 7, 2004

yes but right now the interfere with the header flange.

allcarfan · Oct 7, 2004

ok....if the bolts are in there and have the holes plugged....get a die grinder and a cutting wheel and cut them off...then grind them down. THe holes will be plugged still and wont interfere with your header clearance. If you can get the bolt out, you should be able to take it to any mom and pop bolt shop and they will have an allen-headed threaded plug for your heads. Dont trust everything the machine shop says.

Good luck

jb1dsl · Oct 7, 2004

tried the parts stores in town but no allen head 1/2" fine thread plugs

jb1dsl · Oct 7, 2004

tried the parts stores in town but no allen head 1/2" fine thread plugs.

allcarfan · Oct 7, 2004

did you go to an auto parts store or did you go to a specific nut and bolt place? You can also try lowes and home depot.

jb1dsl · Oct 7, 2004

no nut and bolt places here, going to drive 40 miles to hit lowes and home depot this weekend

jb1dsl · Oct 7, 2004

i cant believe no one else has tried to put headers on a cailfornia car

allcarfan · Oct 8, 2004

I am sure people have put headers on a california car before, but they probably had the correct plugs rather than those bolts that you describe. Anyway you can take a pic and post it?

jb1dsl · Oct 8, 2004

that is the problem can not find correct plugs.

will try to post a pic later

rufusbooth · Oct 8, 2004

This might do the trick for you.

http://www.boltdepot.com/dimension.aspx?cc=13&cs=88&cm=6

Just pick the correct size and you should be good to go.

Cheers,

Rufus

Loup-garou · Oct 8, 2004

Check with the Ford parts counter - there is a a plug kit for the emissions ports on the *rear* of late-model 5.0 heads. It might be the correct size - can't hurt to ask.

jb1dsl · Oct 8, 2004

i only seen 1/2 coarse thread on there but i need 1/2 inch fine thread

emission heads causing problem for tri-y install

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