If you want a nice DD/cruiser I wouldn't do the 455. I would put a gear in it first. Before you do anything else. Gear. 3.23 minimum. Honestly a 3.42 is only a few hundred RPM more at high way speeds so as a cruiser you may want to go there. You will be amazed how different it feels down low but unchanged on the highway. I just finished a 3.23 with an Auburn in my car and now I'm learning how to drive it again. I keep turning the tires over when I start off cuz I was used to the 2.14. it's safe to say I love it. Bone stock 301 and I drive it, a lot
I did it once and the 350 buick is an easy swap, but if you are swapping up to a v8. you have to upgrade the springs and radiator(which means the front core support to)The Rocket (Oldsmobile) 350 is my favorite but the Buick 350 is by far the easiest. Almost everything is a direct swap, the 3.8 is a Buick 350 V8 with two cylinders removed.
No need for the core support swap, they have the positions for the rad pads for both V6 & V8 radiators.radiator(which means the front core support to)
GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.