[bruce driggers]

Rear Cam Plug: Having trouble finding rear exp. plug for block after having 55 mm bushings installed , anyone have any suggestions?

[tiacguy]

My IA-11 has a 55-mm cam tunnel and the part# on the machine shop bill is 381-3092 I believe he told me it's for a Cummings Diesel or Ford but not sure? I do know it has to be put in backwards so it doesn't hit the cam because it's a deep style plug. It has a diameter of 2.396 I'm forgetting off the top of my head what the tunnel bore diameter is. Hope this can help Scott.

[bruce driggers]

Originally Posted by tiacguy

My IA-11 has a 55-mm cam tunnel and the part# on the machine shop bill is 381-3092 I believe he told me it's for a Cummings Diesel or Ford but not sure? I do know it has to be put in backwards so it doesn't hit the cam because it's a deep style plug. It has a diameter of 2.396 I'm forgetting off the top of my head what the tunnel bore diameter is. Hope this can help Scott.

Thanks Scott , that was the measurement I got with my caliper , all the local part stores couldn't seem to come up with a part number ,thanks again.

[mgarblik]

If you are still in a jam on the plugs, PM me with the exact size you get with your calipers. The IA II blocks used 2 different size plugs over the years for the 55mm cam option. I have both here and can fix you up.

[bruce driggers]

Originally Posted by mgarblik

If you are still in a jam on the plugs, PM me with the exact size you get with your calipers. The IA II blocks used 2 different size plugs over the years for the 55mm cam option. I have both here and can fix you up.

Thanks, I've found one that will work .

[mgarblik]

Glad you have it solved. If you go through the plugs like I do, give a company called QualCast a call. They will sell you 6 at a time for around $30.00 delivered.