1981 GMC Sierra

Motortopia Staff . 10th January, 2022

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Vehicle Details

Owner/ Builder

Bradley McFarlin

Vehicles Highlights

Manufacturing year: 1981

Engine:

ENGINE

Shops: Forester Racing Engines and A&S Transmissions

LS7 engine

427 ci

700 hp

2017 Chevy 4L80E transmission

A&S shift kit

Lokar shifter

4-inch aluminum custom driveshaft

Callies crankshaft

Cam Motion camshaft

I-beam rods

Dished pistons

Chevy oil pump

ETP aluminum cylinder heads, lifters, pushrods, springs, rockers and guides

ARP hardware

Edelbrock water pump

Griffin radiator

Custom aluminum coolant tubes by Tre 5 Customs

Stock Chevy LS7 intake manifold

Spectre Performance filter with custom intake tube

Kooks long tube headers with 1 7/8-inch primaries

Tre 5 Customs custom-fabricated dual 3-inch exhaust system with X- pipe

Black Widow Venom 250 polished muffler

Tuff Stuff alternator

Dual electric fans

Wilson 90mm throttle body

All American Billet drive accessory

Modern Vintage Systems wiring

CHASSIS & SUSPENSION

Shop: Jeremy and Hector at Tre 5 Customs

Full-custom built chassis

Porterbuilt weld-in Dropmember built into frame

One-off, All American Billet upper control arms designed by Jeremy Rice

Porterbuilt lower control arms

CPP modular 2-inch drop spindles

Fox remote reservoir shocks, front

Slam Specialties SS7 ’bags all around

VIAIR Gen 2 480c compressors

Rear 3-link setup

All American Billet billet lower trailing arms designed by Jeremy Rice

Fabricated upper wishbone

Fox remote reservoir shocks, rear

Fox emulsion shocks, front

Baer Remaster master cylinders

Baer six-piston calipers, 14-inch rotors, front and back

CPP Showstopper Hydroboost

Custom aluminum fuel tank by Tre 5 Customs

Currie Fab 9 rearend

3.73:1 gear ratio

Transmission:

Exterior Color:

Interior Color:

Specification

ENGINE

WHEELS & TIRES

22x8.5 and 22x12 American Racing VF481 wheels with polished lip and powder-coated centers

255/30R22 and 335/25R22 Pirelli P Zero tires

BODY & PAINT

Shop: IKandy Paintworks

DeBeer Aztec Gold on body, Java Gold on drivetrain

Shaved roof lines, shaved emblems, trim, fender lights, etc.

Modified factory grille by Tre 5 Customs with custom inserts

Custom sheet metal front bumper by Tre 5 Customs

Bob Grant Kustoms tailgate and roll pan combo includes bodyline between taillights

Tre 5 Customs modified rear combo with license plate mounts and exhaust exits

Billet door handles from Brothers Trucks

Pop-up gas filler in top of bedside

Bed floor fully smoothed, custom floor built to support 3/8-inch glass insert

LED sequential taillights from Brothers Truck Parts

JW Speaker LED projection high and low beam headlights

Flush-fit front and rear glass by Select Glass with custom window frames by Tre 5 Customs

One-piece side door windows from Brothers Truck Parts

INTERIOR & STEREO

Shop: Elevated Design

TMI Products bucket seats covered in faux leather and suede materials

Summit Racing billet steering wheel

Billet switches

Vibro Solutions sound deadener

Bentley-style carpet

TMI Products headliner

Modified instrument cluster

Dakota Digital HDX gauges

All American Billet handles

Elevated Design custom console

Vintage Air Gen V AC system

Bluetooth head unit in dash

Image Dynamics 6-inch speakers in kick panels

Image Dynamics 12-inch subwoofer in center console, amps behind seats

Dual Optima Red-Top batteries

SPECIAL THANKS FROM THE OWNER: “Biggest thanks to my dad, Brad McFarlin, also to my mom, Terri. Of course, Jeremy Rice and Hector at Tre 5 Customs, Frank and everybody at Ikandy Paintworks, Steve at Elevated Designs, James and Kyle (coworkers) helped out a ton on the build too. Kyle and Rick at J&R Performance helped out big time to get the truck to run correctly, Aljir at A&S Transmission, Chris and John at American Racing, Shane and Tyler at All American Billet, TMI Products, VIAIR, Dakota Digital, Baer Brakes, Currie Enterprises, Royal Purple, Slam Specialties, Image Dynamics, G4 Paint Supply, Summit Racing and everyone else who played a part, thank you!”