1991 Pontiac Sunbird Repair Question
Will the chevys 4.3v6 fit in a gt with the 3.1v6
nope. too much different mountings, harness, and all components.
why dont you just rebuild the 3.1??
24,973 answers provided
To add to this, the 3.1 is a transverse mounted engine and there is no FWD transmission made to fit it and the biggest issue is that you have an operating system for one engine and one engine only, not to mention it would be against Federal law to drive it on US highways.
14,829 answers provided