Hi al. a local supplier has listed a new olds 'performance cam' for sale. Ie got a 76 caddy,350 olds th400 stock. any ideas about what this cam might be...(ps im in the process of binning the old fuel injection setup and moving to a A4/ 4 bbl and headers)...




Oldsmobile 260-455 Hydraulic camshaft.
Comp Cam, part #42-229-4.
Operating range= 1500>5500 rpm.
Duration= 268 in & exh.
Valve lift .456" in & exh.
Cam only, NEW $100 obo.

 

I just Googled it, and they describe it as a "hydraulic performance cam for mild street machines" with "broad power" and a "noticeable idle". Specs are:


Duration: 268 Valve lift: 0.456
Duration @ 0.050: 218 Lobe lift: 0.286
LS: 110


Single pattern, so intake and exhaust specs are the same. They say it makes power from 1500-5500RPM. Sounds like a nice mild street cam that might be compatible with a Cadillac.


Wait, you just said all that. What was the question?

 

That cam seems short on either lift or duration, depending upon how you look at it.

My UltraDyne cam has 217º duration and .485" lift.

A Crane 260 cam has .456" lift and 204º duration.

So this cam has low lift and long duration (relatively speaking).