

Shelbys were to run the super premium and all other cars performed on regular gas.
Ford engine codes 306 code#
“K” code cars between 19 ran best and the super premium gas after that, premium gas was recommended. Super hot engines like the HiPo 289 thrived on the super premium gas. You younger readers may not even know that in the 1960’s you could buy a super premium gas right at the pump! Sunoco was the best as I remember it. All engines installed in Mustangs had a cast iron block. All intake manifolds were cast iron except the Shelby versions that were cast aluminum. “K” cars received the dual-points mechanical advance distributor.
Ford engine codes 306 manual#
Shelby GT350’s were blessed or cursed (opinions waver) with a Holley 4160-C 4V and a manual choke.Īll non-“K” cars were equipped with a single point, vacuum advance distributor. In 1965 & 1966 they went to a manual choke. For those power hungry individuals that ordered a “K” car the Autolite 4100 (4V) with an automatic choke was installed.

If Your car had the “A” code, from 1965 – 1967 the engine was equipped with an Autolite 4100 (4V – 1965-66) and in 1967 it received an Autolite 4300-A (4V) square bore base with an automatic choke.

If you wanted the “D” coded car in 1964 & 1965 you received an Autolite 4100 (4V) equipped with an automatic choke. If you wanted the two barrel setup, you received an Autolite 2100 equipped with an automatic choke. In 1965 through 1966, you could get the 289 in either a 2 barrel or four barrel version. It was dependable, economical to maintain, had adequate power and was easily modified. This is Ford’s V8 90 degree overhead valve engine that everyone wanted in the first few Mustang years.
