1967 Ferrari 330 GTC (BK)

 Concours Restoration

Concours restoration back to original factory livery of Argento 25090A (silver) with Negro Franzi (black) interior


I was very pleased to come across the very first Ferrari 330 GTC prototype on display in Las Vegas. Chassis number 6431 was originally built on a 275 GTS chassis and was apparently regularly used by Enzo Ferrari himself. The car has dozens of detail features not seen on any other 330 GTC.

We know from service records that this engine had been rebuilt back in the 1980s and has been driven very few miles since. Unfortunately, the quality of the rebuild leaves much to be desired, and we therefore have a full rebuild underway. Inappropriate valve springs were used, resulting in coil bind, the valve stem to guide clearances are huge (over .004″), and piston skirt clearances range anywhere from .004″ to .009″. One of the most telling signs that this car did not receive the engine rebuild it deserved was the presence of a knurled piston. Knurling pistons is an old school practice designed to give extended life to worn pistons. Knurling a piston skirt actually helps ‘take up the slack’ in the case of loose skirt clearance, but the high spots created by the knurling process wear very quickly, so the remedy is very short lived. Despite the use of the knurled piston, the skirt clearance in that particular cylinder was .009″, or .005″ out of spec.

Repair and reconstruction of left front fender/ quarter panel Headlamp locating ring fabrication Final fitment of front fenders and nose prior to priming and installation Front bumper mounts and nose panel mounts Nose panel mounting bracket Engine bay panels and front superleggera framework primed Priming of front fenders Nose panel ready for installation Installation of nose panel assembly Installation of front fenders Trial fit of hood prior finalizing nose placement Installation of rear cowl panel Trunk floor completed and ready for installation Engine bay panels completed and installed Factory from shock tower upgrade Rear quarter panels and tail panel installed New nose primed and fit to chassis Rebuild of tail panel assembly Disassembly of rear bumper/ fuel tank mounting assembly Installation and repair of fiberglass floor, footwell and firewall panels Seam sealing of floor pan, footwell and firewall pans Floor assembly, footwell and firewall primed Inside of rear quarter panels, tail panel, and interior close out panel primed Trunk floor panel support brackets, fit, primed and ready for installation Rear cowl panel primed and ready for installation Rocker panel installation Rear quarter panel repairs Rear wheel close out panel installation Seam sealing inner rocker close out panels Fitting doors, rear quarter panels, and tail corner panels Trunk floor construction Right rear quarter panel repairs Previous primer failure after media blasting Preparing chassis for primer Chassis primed Fitting of new engine bay close out panels New flange panel for rear cowl panel Rear wheel well close out panel construction Trunk floor reconstruction Continuation of rear roof and cowl sub panel repairs Rear wheel well replacement panels Left engine bay close out panel reconstruction Engine bay close out panel reconstruction Rear roof and cowl sub panel repairs and fitment to body Rear wheel arch panel removal Rear shock tower gussets and installation Rebuild of outer rocker substructures Inner rocker cover panel replacement Rear Shock tower cover panels Engine bay side panel reconstruction Rocker Substructure reconstruction Engine bay close out panel New nose panel fitting and repair Body panels refit to the chassis for evaluation prior to panel work Forward picture frame has been removed for repair Plotting the location of the upper shock mount New lower engine bay brace fabricated and welded in place This section has suffered damage from both impact and corrosion Frame is now symmetrical, straight and sound Forward picture frame has lost its symmetry Double walled chrome-moly tube now welded in place for rear shock mounts Transaxle will be fully rebuilt The following sequence of photos show the transaxle rebuild underway and also Jake repairing and reinforcing the front and rear shock mounts. Upper front shock absorber mounts will be repaired and reinforced Jake welded a piece of angle iron behind the shock mount panel to add strength All surface rust was ground away before being sealed and coated in Wurth Body Wax Removing the front right mount revealed minor rust lurking behind Welding the reinforced panel in position Rear shock bar has been reconstructed using new, heavy walled chrome moly tubing Setting cam timing Using infrared beam to ensure rear shock bar is perfectly straight and level The first new panels being fabricated Restored oil pan and baffle I am delighted to report that Jake now has the Ferrari body restoration underway. Assembling the short block and installing the rebuilt cylinder heads. Torque plate honing the cylinders to final size Hanging rebuilt rods on the pistons Honing rod wrist pin bushings to size Balancing the flywheel and clutch Pressure testing with custom head gaskets trial fitted Heads now full rebuilt and ready to install Assembling the cylinder head and setting valve lash We have now received your custom forged pistons. It's always fun to see the finished product when so much work has gone into the design and production behind the scenes. Corey has been busy designing and machining a piston mold from which a new set of custom forged pistons will be made. Heating block in oven to aid removal of seized studs Custom Ferrari V12 torque plate Setting up for align hone with cylinder heads bolted in place beneath block (essential) Squaring main caps prior to performing a much needed align hone Magnaflux checking rods Honing rod housings Setting up to hone new pin bushings Surfacing one of the cylinder heads Preparing to trial fit main bearings Rods now fully rebuilt Machining for new valve seals Honing new valve guides Pressure testing the engine block Measuring head cc Complex timing chain idler sprocket Ferrari rods of the era had the weight stamped on them - in this case 514g Weighing connecting rods after cleaning Damaged timing gear Timing gear idler assembly Water pump bearings and gear badly worn Crack in oil pan rail Custom torque plate Scary looking banjo bolt Badly installed thread repair for oil pan drain plug Oil pan has several previous weld repairs Repaired pan looking virtually new once more Several cracked/damaged fins will be welded and reshaped Disassembling the cylinder heads No to valve jobs were the same! All the valve seats had different widths and heights This line clearly visible on the bottom coil is evidence of coil bind This cylinder had .009" skirt clearance! Pressure testing cylinder heads Valve stems measured inconsistently Stem to guide clearances were huge Knurled piston is cost saving old school practice Engine tear down underway in the CJ machine shop. Strong fuel smell in oil pan First head removed Signs of fuel wash and scuffing on pistons and cylinder bores The prototype Ferrari 330GTC Koni have done a stellar job rebuilding your original shocks We have now received the restored fuse board and superb quality wiring harness that was made for us in Italy. It really is a very impressive piece of kit. The original fuse panels have been restored and completely rewired Suspension and brakes will be completely rebuilt Every terminal has been carefully labeled Road springs will be replaced, Koni shocks will be rebuilt at the Koni factory Separating the springs and shocks Back from being media blasted to back to bare metal, a few minor rust issues are exposed, and also evidence of some sub-standard 1960's Italian bodywork. The Borrani factory in Milan have done a fantastic job with your wheels! Preparing the Ferrari for blasting back to bare metal.. Fiberglass dash/firewall is first to be removed Framework of the dash exposed Panel has slight damage around transmission mound that will be repaired Removing the fiberglass dash and floor pan in order to gain full access to the chassis.. Hundreds of rivets hold the floor pan and front and rear bulkheads in place Panel beneath rear window is aluminium Removing rear window panel/upper rear bulkhead Rear panel now removed Removing pans was essential to gain full access to the chassis Main floor pan now lifted away Chassis will be blasted back to bare metal, repaired and refinished to new condition Many rivets were broken or corroded Lowering the 5 speed gearbox to the ground Unusual view from beneath the car with the floor pans removed Chris Scarborough carefully extracting the compact V12 from the engine bay With the gearbox out of the way, removal of the engine is a simple matter Engine is angled in order to clear the firewall on the way out With the engine on the ground, the mechanical tear down is almost complete Almost clear... Front suspension now removed Removing rear suspension Tear down continued, a glittering new Borrani wheel, and unspent shotgun cartridges hidden beneath the gas tanks... Left rear strut mount Note thick bondo lurking behind front bumper Unspent shotgun cartridges, Italian newspaper clipping, glue, lipsalve and screwdriver Strange assortment lurking beneath gas tanks Right rear strut mount slightly damaged and pushed upward, causing car to ride low in right rear Glittering new RW 4039 Borrani spare wheel Tear down, continued... The only significant rust so far.. Drain hole in left bumper tube requires minor rust repair I am pleased to report that this important restoration is now officially underway! Next task is to remove the rear suspension Some photos are for reference purposes only First task is to remove all the glass and interior Jake and Carlos double teaming the front windscreen removal One last inspection by the proud owner before we get this project underway! One last opportunity for the proud owner to see the car whole before the restoration gets underway