These smaller sized terminal boots have been seen on some of the very early cars. They are the same basic design as the others but have a smaller 9mm O.D. barrel. They may have been used on the earlier cars or may have just been a different design from a different supplier. 9mm Wire Terminal Boots.
I looked and looked for correct Pirelli fan belts for my old 250 Cabriolet with no luck. Finally I made a silk screen jig and began silk screening modern belts with the correct old – style Pirelli information. My silk screen and jig can only do the long belts for the outside plug engines that had generators, and the very short belts that were used on the front mounted generators on inside plug 250 engines. Short Fan Belt for 250 Inside Plug Engines
These round hood bumpers were used on the 250 Scaglietti-built. These truncated cone shpaed hood bumpers were used on the 250 series cars with Scaglietti built bodies. The bottoms of the bumpers are cut so that there is a 1/16″ “press fit” between the bumper and the hood or the trunk when they are closed. These were attached using a trim washer and a slotted flat head sheet metal screw. The P.F. cars used a different piece. Scaglietti Hood Bumpers.
For the long distance races or others when there would be a chance for rain Ferrari would use rubber boots to cover the distributors to keep the rain water out of the electrics. There are good photos of the T.R.s using these boots at Le Mans. Small Distributor Boots for the Front – Mounted Distributors