Exhaust manifold bolts for Oliver 770

[Hrusty]

I'm replacing the gaskets on my exhaust manifold on my Oliver 770. I'm not replacing the manifold itself, just the gaskets. I need to order a new set of manifold bolts since I don't want to reuse the old ones (afraid they'll snap when I try to torque them down). The parts book says that there are 2 different sized bolts for the manifold. I know that these are not technically called bolts, but apparently I can't call them by their real name on this site. Anyway... I can find the 2 inside bolts at a number of online parts houses, but no one seems to carry the outside ones. Anyone ever found find an online source for these? Thanks in advance for any help!

 

[Hrusty]

part numbers for the inside bolts are 102-375a (I can find these).

part numbers for the outside bolts are 1k-429 (these are the ones I can't find).

This post was edited by Hrusty on 07/09/2021 at 07:45 pm.

 

[J. Schwiebert]

K-429 is also used on an 88. They are 3/8 by 5-14 inches long

 

[Hrusty]

(quoted from post at 20:25:06 07/09/21) K-429 is also used on an 88. They are 3/8 by 5-14 inches long

Yep, those are the ones I am looking for. Haven't had much luck.

 

[J. Schwiebert]

Make sure you use wax to help remove them. Questions?

 

[Hrusty]

(quoted from post at 07:09:39 07/10/21) Make sure you use wax to help remove them. Questions?

I've had luck with wax in the past too. I just wanted to have new bolts on hand and I can't seem to find a place that carries them.

 

[Olliejunkie]

(quoted from post at 19:44:17 07/09/21) part numbers for the inside bolts are 102-375a (I can find these).

part numbers for the outside bolts are 1k-429 (these are the ones I can't find).

This post was edited by Hrusty on 07/09/2021 at 07:45 pm.

Have you tried a store that specializes in fasteners. Theres one online that people always recommend but I cant remember its name.

 

[diesel fumes]

try arp .

 

[Hrusty]

(quoted from post at 09:44:21 07/10/21) try arp .

I tried Fastenal this past week. The bolts I am looking for have a coarse thread on one end and a fine thread on the other. The guy said they didn't seem to have anything that had different threads on each end.

I will try ARP on Monday.

If anyone knows where I can get these or has any other ideas let me know!

Thanks for the suggestions so far! I appreciate it!

 

[scootergmc]

Ty calling Maibach tractor. He's got some oddball stuff.

 

[Mike(NEOhio)]

There's a website for Allens Fasteners. Good selection.

 

[Buddy K]

I have 3- studs 5 1/4 long course and fine thread oliver number K429. Call me 715-743-2220.
Buddy

 

[LandonT]

McMaster Carr has a decent selection of manifold studs...