If it’s machined for it I would think it could be drilled and tapped for the thrust plate. Just not certain what timing set you’ll need.

Btw just for a comparison on your cam duration my 496’s had 244/248 duration. Installed 4 deg advanced peaked at 5,800 with hyd rollers and at 6,000 with solids. 4.250 stroke.

Something similar to the 731 cam I’d think.would be a good choice in a 427 to achieve what you want.

whats the lift ?

Lift on the 731 is 587/610. Duration 226/234. Would be a healthy cam in a 427. I didn’t catch though are you wanting to stay hyd flat tappet?

Are your heads the 290’s? If so they like 10-12 deg split in duration as many gm heads do.

The 731 should put you very close to peak hp at 6k.

Another option. Good call Mike, somehow I missed your post.

hydro roller, thats the reason for the thread, my heads are 3931063 1969-71 427 2.06 1.72 Closed 100.9 heads

Here;s a Comp cam I found, thoughts.............566/566 Lift 242/248 Duration 112 Lobe Sep.

Better for sure! those stock closed chamber heads and manifold will restrict (to a point) may not benefit much from a cam that is larger the the above cam.

Im not trying to make a bunch more power, the choice of a hydro roller is for ease on the valve train, when engines sit for a long period of time between starts

I agree, sounds like a good plan!

another Com cam, 110 LS
Intake Valve Lift (in.) 0.540
Exhaust Valve Lift (in.) 0.56
Int. Duration @ .050 in. (Deg) 242
Exh. Duration @ .050 in. (Deg) 248
RPM Range 2800-6100
Int. Duration Advertised (Deg) 294
Exh. Duration Advertised (Deg) 300