DC60 Cams made for 74 will they fit 3.2

[matty74]

I had a pair of DC 60 cams made up for my 74, 74 cam housings. Will these fit later engines like a 3.2? or do I have to change the cam housings?

Could I use these with 3.2 injection? I guess I'd need new pistons

[Henry Schmidt]

Early cam housings on late heads results in a mismatch of rocker to valve stem.
The base circle on the early cams is smaller than on late cams and the net result is that the shorter valves in the late heads means too much gap for the valve adjuster.

DC 60 cams have too much overlap for Motronic injection.

Valve pockets can be cut in the pistons to create the necessary valve to piston clearance.

[matty74]

Henry,

So early housings are 74 - 84?

What is a good cam with Motronic? For street and Track that is?

[Henry Schmidt]

There are actually 6 early cam housings.
2.0 47 mm, 3 journal, non spray bar 63-67
2.0 47 mm,3 journal, spay bar, two holes/cylinder 67-68
2.0-2.7 3 journal, spay bar with 3 holes per cylinder 69-76
2.7 3 journal/ 4 journal casting , spray bar 3 holes 76-77
3.0,3.2 & 3.3 49 mm 4 journal 3 holes 76-89
There were also 47 mm 4 journal spay bar/ non spray bar cam towers for race car application. 906, 910, RSR and more.

We converted a set of 47 mm 4 journal production towers for used on this engine using 4 journal DC cams from John.