The Engine Rebuild
I bought the car with a bad engine in 1990 (just before the big market decline in exotic cars - and therefore I won't tell you the now-embarrassingly high price I paid for it).
The engine has been completely rebuilt at a cost of over $15,000 by Gary Bobileff. The engine was rebuilt at 33,391 miles so there are only 6,874 miles on the rebuilt engine. The rebuild included:
Click image to enlarge.
- Eight new liners, individually matched to the Borgo pistons. Boring the sleeves out and having new pistons made was an option, but we chose to retain the original pistons due to their optimal coefficient of expansion for street driving.
- The rods were balanced end-for-end and align-honed to true bores, lengths, and the ensure the bores are exactly parallel.
- The crankshaft was micro-polished and checked to be sure it was straight and free of any cracks. It did not need to be turned, and all bearings are standard size.
- The usual parts were dynamically balanced.
- The cams were computer profiled and hardened.
- The carburetors were rebuilt (four Weber IDE down-drafts), including choke mechanisms that the car doesn't use (I found out later).
- All new valve guides, seats, and seals installed.
- And all the usual stuff: gaskets, bushings, bearings, seals, belts, etc.
- The oil system has been improved by adding a one-way baffle to the pan and a return tube from the oil pump pressure release valve back to the pan to prevent oil spray in the sump. All parts used are aircraft-quality, stainless steel, and safety wired.
- All sheet metal around the engine has been powder coated semi-gloss black, except for the tops of the air cleaner boxes, which were powder coated off-white.
- All nuts, bolts, washers, pins, etc. were cad-2 plated (gold).
- The carburetor trumpets were done in cad-1 (sliver).
- The exhaust system has been aluminum-sprayed and then painted over with a VHT flat black, so it should last a long time.
I have all of the paperwork from the rebuild.