I have an 85 M6 with 82k. The compresion is getting low in the motor(145-160) the leakdown is getting high(15-42) and its having a tough time passing CA smog. Hopefully the pistons are still ok and I can get away with new rings and freshening the head.
Otherwise I'm looking for engine rebuild options. Some people have told me I should not do a stock rebuild because the euro compresion is too high for the low (91) octane fuel we have in CA. I called Dinan and they no longer do strocker motors. Who is good at rebuilding these motors? What are my options?
Sorry I posted it to this board but there is no M6 board.
85 M635CSi "The Ultimate, Ultimate Driving Machine" poster car