big block vs. smal block

Also remember the cost of installation. My latest Popular Hot rodding estimated $3500 for a motor install and figured that was why so many projects end up stalling at that point. My install wasn't far off that considering headers, carb, MSD 6AL etc. Making changes to accept a big block my end up costing you if you don't figure for it first. Solid mounting with an engine plate and solid engine mounts doesn't make for a good street car. I rode in a 68 Valiant a few times that taught me that lesson.....Just some other things to consider....