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Camshaft plug size differences? what is the switchover year?
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Author:  Greg Ondayko [ Thu Dec 28, 2023 9:13 am ]
Post subject:  Camshaft plug size differences? what is the switchover year?
Working on my '62 Block Here..

What Year Did Chrysler switch from the Larger Cam Plug at the rear of the block to the 2 9/64"Ø plug(Dorman 555-065) from the larger plug?

(excerpt from my '62 valiant restoration blog below)
I had a feeling that I would need the original Cam plug for the back of the block, so I saved it. I had this happen to me before when I was working on a '64 Truck block a while ago - some of the early blocks are machined for a larger rear cam plug - meaning the 2 9/64" Ø - Dorman 555-065 Plugs do not fit. - Too Small. My guess is the early cast iron blocks (this is a '62 Block) and the AL blocks use this larger plug?
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Any TSB, Information or insight is appreciated!

Greg
Author:  hyper_pak [ Thu Dec 28, 2023 10:37 am ]
Post subject:  Re: Camshaft plug size differences? what is the switchover year?
Good catch on saving it!
Author:  SlantSixDan [ Fri Dec 29, 2023 12:57 pm ]
Post subject:  Re: Camshaft plug size differences? what is the switchover year?
Looks like new plug ø for '63 on the iron blocks. That would make sense, because it corresponds to the new iron block casting numbers for '63—and that mysterious conrod oil hole about-face we were talking about.
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Cambearingplugs.jpg
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Author:  Greg Ondayko [ Fri Dec 29, 2023 1:49 pm ]
Post subject:  Re: Camshaft plug size differences? what is the switchover year?
Great, thanks for the Info.

Now I will know to never throw out those big cam plugs!
Author:  SlantSixDan [ Fri Dec 29, 2023 2:56 pm ]
Post subject:  Re: Camshaft plug size differences? what is the switchover year?
Why not just buy new? Last line item here in brass, for example, or fourth up from the bottom here in stainless.
Author:  Greg Ondayko [ Fri Dec 29, 2023 3:08 pm ]
Post subject:  Re: Camshaft plug size differences? what is the switchover year?
Even Better!

Thank you sir!
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