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Timing Chain Install on 301 Pontiac engine

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Hi All

Hope someone can educate me on how to install the timing chain and the position of the dots?

I have been reading up on the install of the dots and some say dot on cam at 12 o'clock and dot on crank 12 o'clock.

others say dot on cam at 6 o'clock and dot on crank 12 o'clock.

some say does not matter if dots are both at 12 or cam dot at 6 and crank at 12 as long as the distributor is installed at TDC on the #1 cylinder.

Any help would be appreciated.


Thanks in advance


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Is there a shop or service manual for this vehicle?  I'd believe the book before yielding to the confusing Internet advice you are getting.  If you have no reason to believe that the chain has slipped a tooth on the cam or timing gear, simply install the chain and put the timing gear back on the same way it is arranged now.  Take pictures first and then install things exactly the same way.


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Thank you for the quick responses. I know it is only a 301, but i am trying to keep it stock. I've been told it makes a great boat anchor  but for me it ran for 40 years so why not just keep it going.

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Thanks for the responses.


I will let you all know when i get to it and install it and get it running.

These forums have been great, especially for someone like me who has never done this before but trying to attempt it myself.


you all are the best. 😁

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