WILL THE CHEVYS 4.3V6 FIT IN A 1991 PONTIAC SUNBIRD GT WITH THE 3.1V6
1991 Pontiac Sunbird
My engine isn't what I really want and has problems and I wanted to swap the 3.1 for the 4.3 and I need to know if its possible
Monday, October 24th, 2011 AT 3:35 AM
Nope. Too much different mountings, harness, and all components.
Why dont you just rebuild the 3.1?
Wednesday, October 26th, 2011 AT 7:36 PM
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.