Cam Question

[TodB]

My coupe has a 3.3L M30 motor in it. The head need some work so I am evaluating the cam that is in it. According to a receipt provided by the prior owner, the cam is a Schrick Mot.II with a .443 lift. The number on the cam is 11 31 1 705 776. There is no Schrick markings or label on the cam.

Can anyone provide anymore specific info about this cam?

 

[Honolulu]

simply...

pop the valve cover and mike or caliper the cam lobe to check lift. The Blue Books should tell you the stock lift... then compare.

 

[Gosch]

It seems an original BMW camshaft to be. Take the Cover on the backside of the head away and look at the number, that is stamp on the cam.

1 = 260° only 2500 lift 6,8471mm (without clearence)

2 = 264° only early 2800 lift 7,4228mm (without clearence)

3 = 272° for late 2800 and all 3.0 lift 7,4228mm (without clearence)

That is also written blue book