Ferrari 328 Buying Guide: Belts, Seals and Frame

Buy a Ferrari 328 on continuous service history and a dated cambelt job first. Cam-seal leaks, cracked exhaust manifolds and creases in the front box section between the pop-up lights and the floor matter more than a pretty gated shifter.

For this November 5, 2026 guide I read Classic Trader: Ferrari 328 buying guide and Classic Car Passion: Ferrari 328 buying guide. The mechanical cautions below come from those pages; the order of checks and the questions for the seller are my practical recommendations. Any price examples in those sources are market snapshots, not a valuation of the car in front of you. So, compare it with recent sales of the same specification and condition.

Treat the belt interval as non-negotiable

Classic Trader says timing belts should be done every five years or about 30,000 miles, and some shops can change them with the engine in place. Classic Car Passion likewise stresses belts and notes the job is less invasive than on some other Ferraris. Ask for the invoice with date and mileage. A verbal "recently done" is not a record.

Look for cam-seal and manifold leaks

Classic Trader lists cam seals, cam-cover gaskets and cracked exhaust manifolds as common issues, plus coil-pack misfires that are easier to fix. Classic Car Passion also flags cam-cover and cam-seal oil leaks. Inspect after a warm drive. A freshly degreased bay can hide a drip that returns on the trailer ride home.

Inspect the galvanised shell carefully anyway

Both guides say rust is less common than on the 308 thanks to galvanising, but Classic Trader still wants checks at front wings, lower door seals and impact-bar bolt-up areas. Classic Car Passion adds the same zones and says badly repaired accident damage can bubble later. Feel panel edges. Filler thickness deserves a meter.

Check the front box section for creases

Classic Car Passion says to inspect the box-section frame between the pop-up lights and the floor for creases that hint at frontal impacts. Classic Trader makes the same point. Lift the front luggage lid with a flashlight. A straightened wing without a straight frame is a different car.

Test gearbox, clutch and GTS roof seals

Classic Car Passion warns gears jumping out of first or reverse point to gearbox wear, and clutches lasting around 50,000 km. Classic Trader notes GTS roofs can leak when seals perish. Try every gear warm and hose-test the targa seals if you can. Missing tool rolls and books also move value.

Choose GTB, GTS or the rare turbo carefully

Classic Car Passion cites far more GTS cars than GTBs, with dry-sump European GTBs versus wet-sump GTS and U.S. cars, plus rare Italian-market 2.0 turbos. Classic Trader adds ABS and wheel-design changes for 1988. Confirm the exact variant against the chassis number. Values track condition and paperwork more than badges.

Prove the identity before a deposit

Match the chassis number on the 328 to the title, any import papers and the plate on the car before you order a history report. Our VIN verification guide walks through that match, and imported-car report coverage sets expectations for cars that spent years overseas. Older chassis numbers may sit outside modern report databases, so confirm coverage before paying. NMVTIS covers U.S. title history only; it cannot replace foreign records or a physical inspection.

Get the repair scope in writing first

If the belt date is missing or the front box section is creased, get a Ferrari specialist's written report before you offer. Look, a seller PDF or a folder of photos is a starting document, not independent proof of condition. Ask the inspector for written findings with local estimates, split into safety work and cosmetic wishes. The NYC consumer-agency used-car guidance tells buyers to have an independent mechanic check the car, and our pre-purchase inspection checklist helps you set the scope.

We are a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. Guest reports have been about $5.50, member reports about $4.50 and a two-report bundle about $6.75; confirm the price at checkout because it can change. A report can miss unreported work, so keep the inspection appointment even when the history looks quiet.

ABS-era cars changed wheel designs, so mismatched wheels can hint at parts swapping after a collision repair. Confirm the wheels belong to the car's year and options list. A pretty set of rims is not proof the nose structure is straight.

Sources

• Classic Trader: Ferrari 328 buying guide
• Classic Car Passion: Ferrari 328 buying guide
• U.S. Department of Justice: NMVTIS
• NYC DCWP: used-car buying tips