They are the same length and I’m trying to get this slant six back on the road for as cheap as possible to save money for a v8 swap this summer. So I think I’m going to give em a shot as is.
Run um. It'll be fine. Before I swapped the 360 in my 65, it had a good runnin 225 in it. When I first got it, it had a dead skip. I did a compression test and it had a dead cylinder. I took the valve cover off and it had a bent pushrod. I took it out, beat it back straight with a hammer on a vise put it back in, adjusted the valves and drove it for two years before I pulled it. It ran fine.