[Steve C.]

First you must decide which is the real W-30 cam. And the source for that number. Comp uses the 402194 specs.

Mondello the noted Olds experts state their W-30 Factory Reproduction Cam as part number MW-30 Hydraulic Camshaft here:

https://mondelloperformance.com/prod...lic-camshafts/

As noted in post number 7

One source:

Two cams for the hi-perf 455's. One, #402194, is for the 390 HP, the other is #402569. This is for the W-30 unit

The 402194 specs are: (.050") 232*/232*x (Adv.) 308*/308* x .474"/.474" x 113* LS.

The 402569 specs are: (.050") 244*/244* x (Adv.) 328*/328* x .475"/.475" x 110* LS.


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