1987 Chevrolet C/K Series

Michigan

$21,995 $38,995

Vehicle Details

Make

Chevrolet

Model

C/K Series

Year

1987

Mileage

89,810 miles

Exterior Color

Green

Transmission

Automatic

Drivetrain

4WD

Fuel Type

Diesel

Engine

Blueprint 383 cu in V8 438 HP

Condition

Excellent

Description

1987 Chevrolet 1-Ton Military 4x4 – Square Body Beast Blueprint 383 V8 | 438 HP | Turbo 400 | 4.56 Gears | 89K Miles Up for sale is an exceptional 1987 Chevrolet Square Body 1-Ton Military 4x4 truck, upgraded and built to perform. Sitting on a rugged military chassis and now powered by a Blueprint 383 stroker V8 pumping out 438 horsepower, this beast is backed by a Turbo 400 Monster transmission and 4.56 gears—perfect for heavy-duty use or off-road dominance. Key Specs & Features: Engine: Blueprint 383 cu in V8 – 438 HP Transmission: Turbo 400 Monster automatic Drivetrain: 4x4 with 4.56 gears Mileage: 89,810 miles Tires: Brand new 285/75R16 10-ply tires Color: Military Green Condition: Excellent Title: Clean This is a true military-grade rig with serious performance and durability upgrades.

Whether you're building a show truck, workhorse, or extreme off-roader, this Square Body delivers.

Classic Chevrolet C/K Series Buyer's Guide (1960–1987)

Full guide

Robert Halloran

Classic Trucks

1960–1987

~4 min read

Updated Apr 2026

The C/K naming system covers three decades of Chevrolet trucks, the 1960–1966 originals, the iconic 1967–1972 Action Line, and the beloved Square Body era. Here's how the generations differ and what to look for in each.

This guide covers

✓ 12-point inspection checklist

✓ Common issues & what to avoid

✓ In-person inspection guide

✓ Market pricing by year & condition

✓ 5 FAQs answered

✓ History & fun facts

Read the Full C/K Series Buyer's Guide

Chevrolet C/K Series Market Overview

Based on 50 Chevrolet C/K Series listings currently on ClassicCarsArena.com

Listed Now

$18,578

Avg. Asking Price

1960–1997

Year Range

Price Position on Our Site - Average Range

This car: $21,995

Low: $4,995 High: $41,995

Transmission Distribution

Automatic 52% ◄

Manual 22%

Condition Distribution

Excellent 16% ◄

Good 20%

Fair 16%

Poor 2%

Data from ClassicCarsArena.com listings Browse all 50 listings →

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Classic Chevrolet C/K Series Buyer's Guide (1960–1987)

When Chevrolet reorganized its truck lineup in 1960, the letters C and K became the foundation of an American institution. C for conventional two-wheel drive, K for four-wheel drive, simple, clear, and enduring. For twenty-seven years, the C/K series covered everything from half-ton haulers to one-ton workhorses across three distinct styling generations. If you're looking at a Chevrolet truck from this era and it isn't specifically labeled C10 or K10 in the listing, the buying principles here apply across the whole family.

What to Check Before Buying

✓

Frame rail inspection , Probe full length of both rails with screwdriver, kick-ups and mid-section

✓

Cab corners , Tap from outside; inspect lower door channel from inside for water damage

✓

Inner cab structure , Inspect behind outer cab corner for deeper rust

✓

Bed floor condition , Assess original steel, replacement wood, or aftermarket panels

✓

VIN decode , Decode VIN before inspection to verify claimed engine, transmission, trim

✓

4WD engagement (K models) , Test 2H, 4H, 4L, clean engagement with no grinding

✓

Engine cold start , Listen for valve train or bearing noise; check oil condition

✓

Transmission function , Smooth engagement in all ranges, no delayed Drive from cold

✓

Rocker panels and door bottoms , Check lower door edges and rockers for rust

✓

Firewall integrity , Check firewall for front collision evidence

✓

Cab mounts (Square Body) , Check lower rear cab panels above cab mounts for rust, common on '73–'87

✓

Axle seals (K models) , Inspect front knuckle seals and differential fill levels

Common Issues

Cab corner rust is universal across all C/K generations, the drainage channel routes water directly into the corner structure. Reproduction corners exist but inner structure must be assessed. Frame rust at kick-up sections is the structural concern. The 350 and 454 V8s are robust with enormous aftermarket support but high-mileage engines commonly need valve train work. On K-series trucks the Dana 44 front axle develops knuckle seal leaks and limited-slip wear. The TH350 and TH400 automatics are generally durable, delayed engagement from cold indicates a seal issue. Square Body trucks (1973–1987) rust at the lower rear cab panels above the cab mounts.

What to Look For

Frame rails front-to-back, probe with screwdriver at kick-up sections and mid-frame. Cab corners, tap from outside and inspect inside lower door channel; reproduction panels available. Bed floor, assess original steel vs. replaced wood or panels. Inner cab structure behind outer corners, more expensive rust damage often hidden. Engine bay firewall for accident damage. Decode VIN before visiting to verify claimed trim level and engine. Check transfer case engagement on K (4WD) models. Inspect driver's side frame behind cab on Square Body for bracket-area corrosion. Check rocker panels and door bottoms.

Price Guide

1967–1972 Action Line: short-wheelbase driver $22,000–$35,000; show quality $50,000–$80,000. Square Body 1973–1987: driver $18,000–$30,000; show $38,000–$60,000. First gen 1960–1966: undervalued at $16,000–$28,000 driver. K-series 4WD carries 10–20% premium over equivalent C-series. Big-block documented trucks command meaningful premiums.

Did You Know?

The 1967 redesign was shaped by GM's truck design studio, later GM's VP of Design. "Like a Rock" first appeared in 1991 advertising for the final Square Body years. The 1967–1972 C10 and its GMC sibling were the first American trucks offered with a factory full-floating rear axle as standard on heavy-duty variants.

$21,995 $38,995

Price Cut! -$17,000 (-43.6%)

1987 Chevrolet C/K Series

Michigan

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