Ford 335 Series

The 335 Series consisted of versions of the 351 and 400 blocks. It lasted from 1970 to 1975.

351 Cleveland

canted-valve cyclinder heads.

bore and stroke of 4.00 X 3.50.

a light weight block to beat.

one of the most desirable V8 engines Ford had to offer.

a two barrel or four barrel setup.

From 1970 to 1971 the 351 boosted between 250 to 240 horsepower.

As time progress, the 351 Cleveland saw lessor horsepower until its' demise in 1975.

the 351 Cleveland four barrel came with dual exhausts, a higher compressions ratio, larger intake/exhaust valves and four bolt mains during the first year of production.

the 351 Windsor, which belongs to the 90 degree V8 family and bears no resemblance or connection to the 351 Cleveland.

351 CJ

Introduced in the fall of 1971

mostly of four bolt mains, however there are some with two bolt mains.

possessed a spread bore bolt pattern cast iron manifold

Autolite carb 4300-D

Horsepower varied from approximately 280 during the first year of production down to 265 by 1973.

351 Boss

Most desirable

only available in the 1971 Boss 351 Mustang

Four bolt mains

high nodular iron crankshaft

solid lifter camshaft with screw in studs

adjustable rockers

an aluminum four barrel intake

351 HO

In 1972, Ford rolled the 351 Boss over into the 351 High Output for the new year.

Slighltly less desirable, the 351 High Output used the spread bore bolt pattern cast iron manifold

Autolite 4300-D.

With a milder camshaft, the output of the 351 HO was about 275 horsepower.

351 M and 400

By 1975 the 351 Modified was issued with Cleveland heads

a two barrel carb.

hydraulic lifters.

a cast iron intake manifold.

a two barrel carb.

the 351 Modified and the 400 which was introduced since 1971, are virtually identical with very few exceptions.

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