Last month, we ran a story on how to pluck a tired V-6 from the fenderwells of a 1989 S-10. The original engine had 170,000 miles on it, burned oil for breakfast, and fouled plugs for lunch. Basically it was well past needing to be fixed or replaced. The first part of this series mapped out the proper way to remove the engine and how to keep track of all the connections and wires. This episode will cover how to button up the new ATK remanufactured long block and set it back between the framerails. We'll also cover the initial start-up, getting the adjustments right, and some new parts from LMC Truck that will support the new 4.3L and make the engine compartment look factory fresh.

What's In The box?
The replacement 4.3L I picked up from ATK VEGE came fully sealed up with new gaskets, rear main seal, and tinwork preinstalled. The block was bored to standard, line honed, then the block and heads were 100-percent surfaced. Other features include a double-roller timing chain, brass freeze plugs, new cam bearings, and moly rings. The engine was hot-run tested at the ATK plant to check things like oil pressure, water temperature, and compression before it was shipped out.

Before You Begin: Pre Cleaning
Recycle Some Parts

PART ONE: ENGINE PREP

PART TWO: IN THE HOLE

Tech Tip
Sometimes New Is Better
There were a few elements that no matter how much I scrubbed just wouldn't come clean. I picked up new radiator overflow and windshield washer tanks along with the upper portion of the fan shroud to complete the restoration side of the install.

PART THREE: FIRE IT UP!

PART FOUR: AFTER BREAK IN

After putting 500 miles on the motor, I drained the oil and replaced it with Royal Purple Synthetic. I also picked up a top-of-the-line Tough Guard filter from FRAM. Just because I was curious, I cut open the old filter to see what was in there. Not even a speck of metal was in there, which is a true testament to ATK's cleanliness and attention to detail when they built the engine.

The Final Word
The last thing I did was install a K&N air cleaner assembly, which looks and performs better than the big stock unit. The job took me five days worth of elbow grease to complete, but it was well worth it. The truck runs better than new thanks to a few performance parts, a very well-built engine, and the help and knowledge my friends provided. I also have to throw a big thanks to my dad Sam who helped out a bunch. Besides the truck running like a top, the best thing about finally doing this job is that I'm not embarrassed to pop the hood anymore.

SOURCE
National Auto Parts Association (NAPA)
Atlanta
GA  30339
800-538-6272
http://www.napaonline.com/
Bothwell Automotive
n/a
CA
310-542-6211
Summit Racing
Akron
OH
800-230-3030
330-630-0240
www.summitracing.com/
Fram
39 Old Ridgebury Road
Danbury
CT  06810
800-890-2075
www.fram.com
LMC Truck
15450 W. 108th Street
Lenexa
KS  66219
800-562-8782
www.lmctruck.com
Royal Purple
One Royal Purple Lane
Porter
TX  77365
888-382-6300
http://www.royalpurple.com
Performance Distributors
2699 Barris Drive
Memphis
TN  38132
901-396-5782
www.performancedistributors.com
ATK Vege
1102 West North Carrier Pkwy
Grand Prairie
TX  75050
800-421-3746
www.atkvege.com
K&N Engineering
1455 Citrus Street
Riverside
CA  92507
800-858-3333
www.knfilters.com
Prestone
39 Old Ridgebury Road
Danbury
CT  06810
800-890-2075
www.prestone.com
Autolite
39 Old Ridgebury Road
Danbury
CT  06810
800-890-2075
www.autolite.com
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