Question about Buick Regal

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Own 1983 buick regal, 3.8 L v6- want to install a 350 smallblock.Is this feasible? The 3.8 is a lemon, and it's very difficult to get parts for the motor.

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Depends on which 3.8 you have because there were two avaliable in that car .One was the buick 231 cubic in and the distributor was on the fron of the engine.The other was the chevy 229 cubic inch engine and the distibutor was in the back just like on the small block v8.If you have the buick motor be prepared to swap everything including wiring harness and transmission.If you have the chevy v6 it not so bad but you will really need a donor car(monte carlo,cutlas,lemans)with a 305 or 350 for the wiring harness ,radiator shroud ( shorter on the v8) ,a/c lines (longer on the v8).Years ago I had a lemans wagon with the chevy 3.8 that i put a Monte Carlo ss motor in and it looked like it came with it.bought a wrecked mc( hit in the rear) and swapped everything.Including coil springs and sway bars front and rear.And yes the SS 15 inch wheels too! It was a real cool sleeper.Miss that car.

Posted on Mar 16, 2011

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Yes. youd need a Cadillac transmission that came of a 4.8 north star along with wiring ecu and harness, a very very skilled auto electrician and a complete pinout of both cars. i recently adapted a 3.8 supercharged engine from a gtp 2001 pontiac in a 88 fiero. HARD work and lots of wiring. few grand later.... bam. running nice. they do the same with the small block 350 as i stated above... or go carburated and just wire up the transmission and map sensor and TPS... for shift point signal data.

Posted on Mar 16, 2011

  • Donald Britton
    Donald Britton Mar 18, 2011

    First of all he is working on a 1983 regal which is a rear wheel drive car.The northstar transmission (4T80E) is a front wheel drive transmission.Second if he was trying to mate a small block to a 4T80E he would need some very expensive adapter plate , flywheel , and starter to make it work.FYI ,have a great day!

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I have put an 1989 350 engine in a 1983 chevy truck. Do I need a spacer between the block and motor mounts before I set the engine down in the truck?


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