As Jalopy 45 said, the satisfaction you get from building a 270 or 302 GMC is great. However, the frustration trying to get parts and the cost isn't so great.
My 321 inch (+.125 overbore) Jimmy made 347 hp on the dyno but it was harder to build than 10 small block Chevys.
308 Hudson rods (modified)
Custom JE pistons ($100 each)
Custom aluminun roller rocker arms, shafts, etc. (I built them)
3x2 sheet medal intake
Custom 4x1 Header
Etc
Etc
Etc
The 4200 engine swap sounds like a walk in the park...and cheaper.
Ron
