i need help with a motor swap?

Question

i have a 1990 chevy pick-up with a 4.3 with tbi and want to swap out and put in a 350 with tbi how do i make that work any help will be helpful thank you.

Answer 1

That is an easy swap. You will need the 350 ECU (computer) and rlated wiring. All accessories will bolt right up.

The 4.3 is basically a small block with the rear two cylinders chopped off.

Answer 2

possibly changing the motor mounts, im assuming its a 1987 tbi engine, so most of the electrical should work. there is a company called Painless that makes wireing harnesses for the job. this is just the start, there is MUCH more do this kinda job

Answer 3

Well without knowing what truck you have the easiest way may be to go to a junkyard and find a truck that's the same as yours but with the V8 in it and buy the wiring harness,computer,mounts,radiator,exhaust manifolds,transmission and everything else you will need to convert yours to a V8. if! you have a S-10 you will have to purchase a kit from a speed shop like summit racing to mount it plus aftermarket exhaust headers and a wiring kit if they have one.more info on what you are doing would be very helpful to answer this better.

Answer 4

Make sure that it will bolt up directly to the transmission or if an adapter plate can be used. Throttle linkages and motor mounts are another consideration. You will also need to ascertain that the air intake plumbing, wiring, exhaust connections and computer are compatible. Lastly you will need to check that the installation will be legal for your state's emission regulations.

Answer 5

It likely should be executed, yet with lots of different adjustments and adjustments. If the Neon engine is okay, then it doesn't be close to really surely worth the attempt or money. more advantageous powerful to seem for a Mazda with a nasty / lacking engine

Answer 6

yeah!!torch out the non-essential mud guards and firewall inhibitions and set-up a decent and unobstructed volume!!be careful to relocate and reroute all electronic looms and wiring for later assessment,install an msd elctronic ignition system in an out of the way bolt-down position with easy access!!get a 454 cubic inch Buick engine out of an old 1965-9 225 electra with a three speed transmission still connected to it !!crank that engine mover's WENCH and cant that bad boy into your newly widened engine compartment space; setup your distances and motor mount positions and pull it back out to perform the necessary welding free of gasoline fumes!!use your measurements FROM when the engine was set in momentarily to fabricate some nickel/stainless sheet mud shields to enclose and protect your new engine from splatter,water and energy sapping water cappillary incursion until now previously stopped by cheap *** neoprene!!this is a process achieved by compasses,dividers and hand-made templates!!diamond plating looks trick by the way!!an oversized radiator is the key to this particular engine configuration,brass soft plugs absolutely neccessary!!a roller cam and beefed up universal joints on the driveshaft ;which incidentaly may have to be cut down a few inches,recentered and rebalanced!!the chevy 454 of modern ,post 1970 vintage won't do!!it's been artificially de-tuned and the air/fuel ports have been "plugged-up" and screwed with too much to allow for the blocks "air-sucking/torque producing" potential;and you don't want to go through the expense of grinding all of that "planned obsolence" crap out!!the buick electra 225 454-5 engine is the best Detroit ever produced;"bullet-proof" and nearly ""indestructable"!!i Street Raced one with a cracked cylinder wall for 5 glorious years!blowing out soft plugs ,twisting the drive shaft off and dropping it in the street,racing everything from porshe carrerras to a 351 cleveland stuffed in an altered wheelbase Maverick with tubbed Mickey Thompson twelve inch wide slicks,full roll cage,aircraft quick release harness and a complete hand-built polished stainless steel tubbed interior and NOX system!!over that time i never left the line without burning rubber; HR -78's were cheap then AND SO WAS GAS!!it would pull 6 passengers and all my carpenter's tools in the trunk and hit 125 miles an hour for 9 miles on the 91 freeway!!beat any mustang ever made and roar like the ozone layer was being sucked down into it ALIVE!!if you can find that engine ;BUY IT!!YOU'LL THINK YOU'VE DIED AND GONE TO HORSEPOWER HEAVEN!!BEEFING UP YOUR REAR GEARBOX TOO,A QUICK CHANGE, "HEAVY DUTY" UNIT WOULD DO THE TORQUE JUSTICE !!9 GALLONS A MILE VIRTUALLY GUARANTEED!!DUAL GAS TANKS IS A GOOD IDEA!!350 WHAT ARE YOU THINKIN'!!YOU ONLY LIVE ONCE!!YOU REMIND ME OF A GUY I MET WHO HAS A CHERRY CORVETTE WITH A 454 COVERED UP IN HIS GARAGE UNDER CRAFTS SUPPLIES BECAUSE HE CAN'T "AFFORD" TO DRIVE IT ;BECAUSE OF INSURANCE,GAS PRICES AND HIS WIFE'S SAFETY CONCERNS OF DRIVING OVER 50 MPH!!WHEN ARE YOU EVER GOING TO ENJOY A "REAL" DRIVING EXPERIENCE EVER??THEY DON'T EVEN MAKE A DECENT CORVETTE ANYMORE!!YOU'REE SITTING ON AN AUTOMOTIVE TRIUMPH THAT WILL NEVER AGAIN BE PRODUCED ON THE FACE OF THE EARTH AND YOU'RE AFRAID TO DRIVE IT???!!!HELP ME AMERICA!!

Answer 7

replace ,tranny and engine together.
bring the the 350 engine mount and adapter-bracket from original donater vehicle.

Answer 8

What truck is it? If it's an S10 and you don't know-don't even attempt it! There's much more involved than turning wrenches!

Answer 9

should drop right in with a bigger radiator and shorter fan shroud, just don't use the v6 distributor.

Answer 10

SUMMIT RACING HAS A CONVERSION KIT FOR ABOUT $100.00.