He Put a 4BT Cummins in a 1960 Chevy Apache (And Kept the Patina)

A 1960 Chevy Apache with a 3.9L 4BT Cummins diesel, a Dodge NV4500 5-speed manual and four-corner air ride — slammed, bagged, and built to be driven. Full build breakdown + specs below 👇 Francis Bolduc didn't repaint this truck, didn't polish it, and didn't order it out of a catalog. He cut the frame, swapped the front clip, stuffed an industrial four-cylinder where a Chevy inline-six used to live, and then actually drove it. This is the story of one of the most unconventional 1960 Chevy Apache Cummins swaps on the road — the Apache from BOOSTED & DRAGGIN'. ⏱️ CHAPTERS 00:00 A different kind of loud — first look at the Apache 00:25 Not a trailer queen: this truck gets driven 00:36 Factory orange paint: why it stayed unpainted 00:50 Busted knuckles, presence and a real build 01:03 Under the hood: the 4BT Cummins swap 01:33 4BT vs 6BT — plus Fluidampr, ICT Billet, 4-inch side exit 01:58 Dodge NV4500 5-speed + Wilwood hydraulic clutch 02:13 Cut rear frame + S10 front clip 02:24 Four-corner air ride, Fox shocks and laying rocker 02:40 Coy's C5 wheels + 345-width Toyo Proxes 02:52 It drives better than it has any right to 03:10 Hydroboost brakes: modern stopping power 03:24 Inside: leather bench, manual air valves, wood tunnel 03:58 Kicker subs, and the word "intentional" 04:13 Not a spec-sheet trophy 04:26 You cut, you weld, you fabricate 04:38 It looks like a shop truck, but... 04:51 Not for sale — diesel rat rod, farm truck with attitude 05:08 Don't call it fake 05:20 Sign-off: the 4BT does the talking 🔧 BUILD SPECS — 1960 Chevy Apache (Francis Bolduc, Mims, FL) ENGINE: 3.9L Cummins 4BT turbo diesel inline-four • Custom engine mounts • Fluidampr harmonic balancer • King Speed valve covers • ICT Billet intake manifold • Custom fabricated 4-inch side-exit exhaust • OEM fuel injection DRIVETRAIN: Dodge NV4500 5-speed manual • Wilwood hydraulic clutch • custom transmission mount • GM 10-bolt rear axle CHASSIS: S10 front clip conversion • custom rear half frame • four-corner air ride • Fox shocks (rear) • C10 OEM fuel tank WHEELS & TIRES: Coy's C5 — 20x10 front / 20x15 rear • Toyo Proxes 345/25R20 BRAKES: GM Hydroboost • dual-piston front / single-piston rear calipers • drilled & slotted rotors BODY: original factory orange paint • OEM bumpers • front wheel wells removed, custom rear tubs • hand lettering by John Foster INTERIOR: original bench seat in black leather • hand-tooled leather accents • fabricated wood trans tunnel • manual air ride valves • OEM gauges & steering wheel • custom console with two 10-inch Kicker subs ❓ QUICK ANSWERS What engine is in this 1960 Chevy Apache? — A 3.9-liter Cummins 4BT four-cylinder turbodiesel, swapped in with custom motor mounts and upgraded with a Fluidampr harmonic balancer, King Speed valve covers, an ICT Billet intake and a custom 4-inch side-exit exhaust. What transmission does it use? — A Dodge NV4500 five-speed manual with a Wilwood hydraulic clutch and a custom transmission mount. Is it bagged? — Yes. Four-corner air ride with Fox shocks, and it lays rocker when the air is dumped. What wheels are on it? — Coy's C5 wheels, 20x10 front and 20x15 rear, wrapped in 345-width Toyo Proxes tires. Whose truck is it? — Francis Bolduc's, built in Mims, Florida. Featured by Diesel World, Street Trucks and Engine Swap Depot. 🎧 Storyteller Series is our audio-article format — listen while you wrench. 🔔 Subscribe: www.youtube.com/@UCw8a8O3dz57yo9AwtjQZzyA Music licensed for this video. Footage © Motortopia / BOOSTED & DRAGGIN'. #4BTCummins #ChevyApache #CumminsSwap