YES
In 1968 and 1969, the US national average price of a gallon of regular leaded gasoline was 34 cents and 35 cents, respectively. That is equal to about $2.20 per gallon in 2010 dollars.
Have the heads done with hardened valve seats.
Big job!! get a manual on your car.
factory rated at 390 hp gross
The same as you do in the 1968 Buick Wildcat
The 68 obviously was built during the time that regular gas was being used. The lead compounds contained in the gas was sort of a lubricant for the top side of the piston rings. Now, oils manufactured currently, contain synthetic compound additives that bind to the cylinder walls that does away with the need for leaded fuel, so to answer your question, it will probably run better with un-leaded fuel, especially since you just had it re-built with current day parts.
5x4.75 or 5x4 3/4 standard GM.
if it has been rebuilt regular unleaded,but if it has alot of miles mid grade or high grade
The manufacturer's service manual from 1968 says "Approx. 21 gals.", which matches what I see during fill-ups of my Riviera.
yes might have to change motor mounts
1968 Buick 6 cyl.1963-1968 Chevy 6 cylinder1968 Chevy V81966-1968 Oldsmobile 6 cylinder1964-1965 Pontiac 6 cylinder