1973–1974 CHEVROLET C30

6.6L V8•4WD•gas•402

5-Year Cost of Ownership

$7,897 maintenance + likely wear

~$1,579/yr · 130¢/mile equivalent

Compare this engine

7.4L V8 454

MOST COMMON JOBS8 jobs that 80% of techs look up

561 jobs across 18 categories

body (42)

brakes (41)

cooling (22)

drivetrain (36)

electrical (77)

emissions (1)

Oxygen Sensor Replacement
emissions

engine (66)

exhaust (25)

fuel (20)

fuel-system (9)

hvac (23)

ignition (16)

interior (24)

maintenance (33)

misc (2)

steering (26)

suspension (54)

transmission (44)

Unlock any single procedure for $3 — or become the founding sponsor and we generate every common job on this C30, with your name on each one.

🏆 Sponsor — $99

🔓 Not written yet — unlock any for $3 · 561

Your $3 writes the full step-by-step procedure and makes it free for every owner on earth, forever — with your name on it.

body · 42

brakes · 41

cooling · 22

drivetrain · 36

electrical · 77

emissions · 1

Oxygen Sensor Replacement$3 — unlock

engine · 66

exhaust · 25

fuel · 20

fuel-system · 9

hvac · 23

ignition · 16

interior · 24

maintenance · 33

misc · 2

steering · 26

suspension · 54

transmission · 44

Units

278 torque specs across 11 categories

brakes (46)

cooling (32)

drivetrain (34)

electrical (24)

engine (76)

exhaust (4)

fuel (8)

hvac (10)

ignition (6)

steering (8)

suspension (30)

No DTC data for this vehicle.

No battery specs for this vehicle.

Module data for this vehicle is being compiled — check back soon.

33 maintenance items across 1 category

maintenance (33)

🌧️ Wiper Blades

1973-1974

16″

Driver side

16″

Passenger side

Attachmenthook

📝 C30 shared windshield and wiper specifications with C20 in this generation.

🛒 Part numbers on the shelf

16″Bosch ICON 16A/B · Rain-X WeatherBeater RX30116 · ANCO 31-16Buy on Amazon

Size-standard part numbers — verify your connector type before buying.

As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Full wiper guide for this C30 →

No NHTSA recalls on file for this vehicle.

Wiper blades

C30 shared windshield and wiper specifications with C20 in this generation.

Driver side

16in

Passenger side

16in

Attachment

hook

16″ fits: Bosch ICON 16A/B · Rain-X WeatherBeater RX30116 · ANCO 31-16

Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.

Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1973–1974 Chevrolet C30 6.6L V8 and can vary by trim.

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.

Stuck on a repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI

Building an app?

Free API access to all this data — 20 requests/day, no card required.

Get an API key →

Run a shop?

Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included. Built by the same team.

Try ShopBase →