170 or 225?

My 65 Valiant wagon was a 225 /904 .It was a basket case when I was given it.It ran well but was totally rusted.Well I fixed it up and used it.That was in 1997.In 2013 the 225 was making so much blow by that I had to pull it or I'd die driving.It had 350,000 miles on it at that point .When I tore it down to see what failed I found broken rings in 4 pistons. It still ran when pulled ! I dropped in a sweet 170 I had from this 66 Valiant I had for many years. The 170 was well cared for by me so it was in good shape.I put in a 3.09 first gear 4 speed from a 65 Barracuda and a 7 1/4 323 sure grip out back. I LOVE IT ! It is real responsive and when I drive it up to my camp in the Adirondacks 380 miles away from home it does the trip fully loaded with gear and tools on one tank of gas . At high way speeds it's a little screamer .Hit the gas at 60 and it just takes off.That short stroke is wonderful. So,my advice is to go with the 170.