Ford Y Block Series

Cast iron crankshaft, intake and exhaust

Cast-aluminum pistons

Mechanical camshaft

Aavailable in Ford cars in 1954 and 1955 Ford trucks

Used only on Mercury vehicles and in F-series Ford trucks

Compression ratio of 7.5:1

161hp at 4400RPM

Two versions available for 1955

Two barrel carb with 7.6:1 compression and 162hp

Four barrel carb with 8.5:1 compression and 182hp

In 1956 horsepower varied with automatic or manual transmission

In 1957, the 272 cubic inch reached 192 horsepower

First introduced in the T-bird and Montclair

All used four barrel carb in 1955, but horsepower varied, but average around 200 depending with manual or automatic transmissions.

Bore and stroke: 3.75x3.30 in.

Following years were produce less horsepower, until its' demise in 1964

Largest Y Block of its kind

Bore and stroke: 3.80x3.44 in.

Two versions were introduced, both with four barrel carbs and dual exhausts.

Introduced, once again in the 1957 T-Bird, it gained critical aclaim for producing horsepower over 300 while equipped with a Paxton supercharger