Roof 101 Cyclone Ohv

In 1928 speed hunter robert roof invented what s thought to be the first ohv conversion the roof 101 cyclone adding 150 per cent more power to the four cylinder engine in his model a roadster and pushing him to 101 mph.

Roof 101 cyclone ohv.

The head you see here is a recreation of that engine by his grandson jim roof. The roof 101 cyclone is made to fit the 1928 1934 model a and b ford and the german g28t engines. The following photos represent what can be done to bring the head to show quality with paint powder coating and polish. This conversion one of 65 units made in 2010 was co created by charlie yapp and jim roof.

The 101 name is based. Our last run of 12 heads was shipped january 2017. Model a b and t ford four cylinder vintage speed sport racing performance touring speed parts and secrets magazine. Auto engine ford classic cars engine types street rods jack daniels ford models old cars hot rods engineering.

We make these historic and popular cylinder heads once every other year. Roof 101 cyclone ohv photos above is the roof 101 cyclone ohv 4 port conversion for model a and b fords. A production run depends on customer s continued demand. Originally created in 1929 by robert roof and called r r cyclone overhead valve.

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