If you have the extra block & it would require no additional fabrication to your truck. I'd say stay stock. Since you will be doing a complete rebuild anyway - see if there are any power options like a bigger carb or intake/exhaust manifold.

Besides - you said yourself your in no hurry.

350's are fine - but for my money it seems like a lot less work to just replace the 270.


1958 Chevy Apache 3200
bone stock 235
53k miles
3 on the tree