Will 1978 350 heads fit a 1989 tbi 350?

Yes, 1978 350 heads can fit a 1989 TBI 350 engine, as both share the same basic small-block Chevy architecture. However, you may need to ensure that the intake manifold and other components are compatible, as there can be differences in bolt patterns and port shapes. Additionally, consider the differences in performance characteristics and compression ratiOS between the two head designs. Always check for any specific modifications needed to ensure a proper fit.