The 1968 Camaro is a body-on-frame first-gen classic with solid mechanicals but 55+ year-old engineering that shows its age in cooling, fuel delivery, and metal durability. Engine and transmission longevity depend heavily on prior owner care and whether it's original or swapped.
Small-Block V8 Bottom-End Failure (307/327/350)
Occasional · high severityTypical onset: 120,000-180,000 mi
Symptoms: heavy knocking from lower engine, especially under load, metal shavings in oil filter, sudden oil pressure drop, vibration at idle that worsens with RPM
Fix: Complete engine rebuild or long block replacement. Requires engine R&R (8-12 hours labor), machine work on block and crank, new pistons/rings/bearings/timing set. Most shops pull the engine, send out machine work, reassemble. Total 20-30 hours when all is counted.
Estimated cost: $4,500-8,500
Radiator Core Support and Inner Fender Rust-Through
Common · medium severitySymptoms: visible rust perforation at core support mounting points, radiator sits crooked or loose, battery tray collapsing on driver inner fender, coolant leaking from corroded seams around radiator mount
Fix: Patch welding or full core support replacement. Minor rust: 4-6 hours to cut out and weld patches. Full replacement involves front-end disassembly, new AMD or Goodmark panel, welding, and realignment—easily 16-24 hours for proper fit.
Estimated cost: $800-3,200
Powerglide and TH350 Transmission Mount Collapse
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: clunk shifting into reverse or drive, excessive driveline vibration at highway speed, transmission tailshaft visibly sagging, shifter feels loose or notchy
Fix: Replace transmission mount and crossmember bushings. Jack up transmission, swap mount (1.5-2 hours). If crossmember itself is rusted or cracked, add 1-2 hours for removal and replacement.
Estimated cost: $180-450
Fuel System Vapor Lock and Carburetor Heat Soak
Common · medium severitySymptoms: engine dies after hot soak in traffic or after shutdown, hard restart when hot, fires right up when cold, stumbling and lean surge on hot days, fuel percolating in carburetor bowl
Fix: Install heat shield under carburetor, insulated fuel line, and electric fuel pump if mechanical pump is heat-soaked. Routing fuel line away from exhaust and adding phenolic spacer under carb helps. 2-4 hours depending on setup.
Estimated cost: $250-650
Floor Pan and Torque Box Rust Perforation
Common · high severitySymptoms: visible holes in driver/passenger floor pans, soft or spongy feel when stepping on floor, cracking around rear seat frame mounts, torque boxes collapsing where rear leaf springs mount
Fix: Full floor pan replacement requires interior strip, cutting out old pans, welding in new AMD panels. Torque boxes are structural and require proper jig alignment. DIY with welder: 20-30 hours. Pro shop: 25-40 hours for complete four-corner floor job.
Estimated cost: $3,500-7,000
Steering Box Worm Gear Wear and Play
Occasional · medium severityTypical onset: 80,000-140,000 mi
Symptoms: excessive steering wheel play (more than 2 inches at rim), wandering at highway speed, clunking when turning lock-to-lock, fluid leaking from sector shaft seal
Fix: Adjustment first: 0.5 hours to tighten sector shaft. If worn beyond adjustment, rebuild kit or reman box. R&R steering box is 3-4 hours including alignment afterward. Rebuild adds 2-3 hours if done in-house.
Estimated cost: $350-950
Single-Pot Master Cylinder Failure
Occasional · high severitySymptoms: total brake loss with pedal going to floor, no warning, sudden failure, fluid leaking from rear of master cylinder, spongy pedal that doesn't pump up
Fix: If still single-reservoir, immediate upgrade to dual-reservoir master is mandatory for safety. Includes new master, proportioning valve, and bleeding. 2-3 hours labor. Many '68s have already been converted.
Estimated cost: $280-550
Buy one if the body is solid and the drivetrain has been rebuilt or swapped—skip it if you see Swiss cheese floors or unknown engine history.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.