Size of RB block cam freeze plug (back of block)?

Posted By: BradH

Size of RB block cam freeze plug (back of block)? - 09/29/10 08:43 PM

Can anyone tell me the size of the RB block cam freeze plug that goes into the back of block between the screw-in oil galley plugs?

My machinist and I must have had a small communication breakdown when I asked him to leave out the oil galley plugs, 'cuz I realized while washing the block that the cam plug wasn't installed, either.

It'll be easier to stop by the parts store that's 5 minutes down the road than make a trip back to the machine shop, if someone can tell me the correct dimension for the missing plug. Thanks.

Posted By: Mopar-Al

Re: Size of RB block cam freeze plug (back of block)? - 09/29/10 09:46 PM

i think 1 31/32

Posted By: Challenger 1

Re: Size of RB block cam freeze plug (back of block)? - 09/29/10 09:55 PM

I have SB cam plug here in front of me that says 1 7/8" on it. I don't have a BB here to check.

I do have 2 KB hemis sitting here that have 2 9/64" cam plugs in them. I have no idea if there the same as a iron BB.

Posted By: 446acuda

Re: Size of RB block cam freeze plug (back of block)? - 09/30/10 01:39 AM

Quote:

I have SB cam plug here in front of me that says 1 7/8" on it. I don't have a BB here to check.

I do have 2 KB hemis sitting here that have 2 9/64" cam plugs in them. I have no idea if there the same as a iron BB.

I have a 440 right here and it has a 2-9/64 plug

Posted By: HPMike

Re: Size of RB block cam freeze plug (back of block)? - 09/30/10 01:50 AM

Brad, it's 2-1/8"(the 2-9/64" will work as well). Not likely to find at any auto parts or hardware store. I prefer the more "cupped" variety over the shallower ones, but I have seen them both ways and either will work..

MB

Posted By: BradH

Re: Size of RB block cam freeze plug (back of block)? - 09/30/10 02:27 PM

Thanks. I'll try to find one this weekend.

Oh, what's the recommended sealant to use when installing a freeze plug?

Posted By: joewhite440

Re: Size of RB block cam freeze plug (back of block)? - 10/01/10 03:26 AM

The last time I bought one, 2001 or so!
The parts store said they would no longer carry them and he was not sure if Dorman still made them. He had 8 in a box so I bought them all. If you do not find one this weekend send me a PM with you address and I can send you one.

Joe

Posted By: RapidRobert

Re: Size of RB block cam freeze plug (back of block)? - 10/01/10 03:46 AM

Quote:

Oh, what's the recommended sealant to use when installing a freeze plug?

Permatex #1 in the toothpaste like tube. A quick wipe w brake kleen 1st w a no lint rag

Posted By: joewhite440

Re: Size of RB block cam freeze plug (back of block)? - 10/01/10 11:54 PM

I checked today. The ones I have are Dorman P65C Cup type 2 9/64 like someone above said.

Joe