will the chevys 4.3v6 fit in a 1991 pontiac sunbird gt with the 3.1v6

1991 PONTIAC SUNBIRD
153 MILES
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LILJJ
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  • 1 POST
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
Oct 24, 2011 at 3:35 AM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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nope. too much different mountings, harness, and all components.
why dont you just rebuild the 3.1??

Roy
Oct 26, 2011 at 7:36 PM
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WRENCHTECH
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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.
Oct 26, 2011 at 7:53 PM
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