I've got a 5.3 from a Rainier for my 71 Cutlass. I think I read somewhere that the PS pulley smaller on these than on conventional truck motors? Is this true? I am wondering if I am going to be able to use it as is or if I will need to swap the pulley.

 

That's correct, the pump and pulley and bracket on your engine is different than the common truck engine set-up. Your pump is a Type2 pump and your pulley is 5.25" in diameter; the common truck pump is a P-type and uses a 6.75" diameter pulley.

 

Great! Thanks for the confirmation.

 

No problem. Your pump and pulley should fit fine in your A-body, but the pump reservoir may end up causing you fitment issues...rigging up a remote mounted reservoir may end up being a requirement.

 

Good to know. I'll add that to my notes.