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I assume the engine is internally balanced, since the stock pulley is not a balancer style. I'm wondering what effect a balancer will have on the engine and will it cause any long term damage. Hope to get more feed back from the group. - John

Guys, I have a '62 D100 with a Poly 318. I'm looking to add an air conditioner and need to swap out the crank pulley to a two groove pulley from a single groove. The stock crank pulley on the early truck engines in not a harmonic balancer style, see attached pictures. My question is, can I use a...

I am looking for a 2-groove pulley for a '62 poly 318 D100 Pickup. I have attached a few pictures of the original singe groove pulley. Can anyone help me find one? John