New here first post.. I have a 93 caravan long base with 3.3 and four speed automatic. I am putting a donor 5 speed with 2.5 engine. Will the 93 donor 2.5 engine harness under the hood plug right up to the fire wall on the 93 original van correctly? Will everything work on the dash correctly are do I need to change the dash harness too? looking to save on gas millage with this modification.. Thanks for your input...

 

Welcome to DF! Moving this to the Caravan section for ya.