I apologize in advance if this should be in the exhaust section...but these technically bolt into the LT1

While doing my head gasket, I took off the manifolds to find that the passenger side manifold did not even have a bolt in the furthest back hole (under the cowl). I then proceeded to lose another from that side...NO idea where it went, think the car ate it. So I need two of em and I've tried the advance's, autozones, they claim it to be a dealer only part. Anybody know where I can get two of these (or a whole kit for that matter if that's what I have to do)? Searched online also and didn't have much luck there either..

 

You can't find an inch long 3/8" bolt?

 

For real. Any standard SBC Chevy header bolt will work.

 

Just make sure that the bolts are actually missing, and not just broken off in the head (which was the case with the rear two bolts on my driver's side on mine). I was hoping they were just missing, but once I pulled the manifold, I realized that the bolts had broken off.

 

There are 4 holes if I recall correctly in the factory manifolds, maybe they were for bolting to something else, only 2 had bolts in them. Kind of like most of the gaskets have 2 different offset holes there. Is there a bolt there behind the last primary? If so you are fine.

 

Ok so in hindsight looks like I asked a pretty stupid question..lol And no...no broken bolts...I lost one of em and the last one in the back (pass side under cowl) wasn't there at all..I made sure it wasn't broken off when I pulled the heads out. I'll just take one of the ones I have to the hardware store and match it up.

 

Hey guys. I too am the process of installing an exhaust manifold on to a '94 LT1. But here is the problem I need to replace the studs that go into the first and third holes (front to back), but according to the dealer those particular stud were discontinued, so where can I find those studs or their equivalent?

 

I know our ace has a small selection of studs. Don't know if they have a 3/8's but it is worth checking. If not just get a bolt long enough.