350 interchange?

[Blazin'4x4]

Does anyone know the what year engines interchange that I could pull to swap out a 350 in an 89 k3500. Just a straight up bolt in and go engine. Other than another 89 obviously. Its got tbi and a real bad rod knock.

 

[4X4HIGH]

Any engine from 87-95 will bolt in and work since those are all TBI engines, you can go earlier but then the cam might not be TBI friendly and the intake manifold would need to be modified to work with the earlier bolt pattern on the heads and you would need the early valve covers as well.