From a performance standpoint, all the 534 has going for it is cubic inches. It is large, very heavy, and has a pretty screwed up head design. A bigger carburetor and a port job would be an improvement, but what can you do after that? Lima's have much more potential. The 534 was an impressive heavy truck gas engine in it's day, but installed in a pickup would be pretty much an oddity and not all that fast.