I race a slant 6 powered 63 valiant in the 24 hours of lemons series and it works really well. This is probably the wrong forum though for slant six info. Check out slantsix.org for good info and look into Dutra's book. https://www.amazon.com/Chrysler-Slant-Six-Engines-Rebuild/dp/1613254326 The people at slantsix.org are really helpful!