This is topic When changing LX to Gt 1991 in forum Tech Talk at Northern California Ford Owners  .


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Posted by Isaiah (Member # 14366) on :
 
So i have a 1991 mustang LX 4 banger and am engine swapping it, is it true that the LX gas tank wont work, and that i need a 5.0 gas tank???
 
Posted by rollininmy50 (Member # 9067) on :
 
Brake lines to rear, fuel lines need replace to V8, dash harness and harness to rear can be used from 4cyl , just need V8 ECU harness and brain. Make sure you find a same year V8 engine harness so you don't need to change headlight harness. Some year fox bodies use same year harnesses
 




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