How large of a cam with 4.75 crank in standard cam block?

I have a 4.5 stroke and a 4.75 stroke Callies crank but would like to build the 4.75. Both cranks have 2.200 journals. This will be a nitrous deal with a 2 speed 400 1.48 or a 1.58 glide with 315 pro drag radials. The heads are B1mc with a fogger flowed by Kevin Neil.

1. How large of a nitrous grid cam will fit in a standard cam location (already have) world cast iron block with a 4.75 stroke with 2.200 journals and steel Oliver rods?

2. Is the torque from the 4.75 over a 4.5 stroke worth the extra work?
Just wondering if it would make a difference from the 330' to the 1/8th?

My 605 runs a .767/.676 288/292@.050 on a 113C. I've got .060 lobe to rod clearance. I'm sure you can run something bigger. My 'street' motor makes 818ftlbs, I'd say the extra stroke is worth it.Dave

Clearance also depends on the base circle of the lobe and what rods are in it.
Doug

.560 lobe 55mm cam in this 4.75" stroke standard cam Oliver rodded motor.....

Very nice!

2.2" crank pin I assume? Did you have to grind on the Olivers? I have heard that they are slimmer on the big end.

Yes, 2.200" rod journals, took about .030"of materal off the rod by the bolts on 4 rod journals.....yes they are slimmer than an aluminum grp rod by only a little bit...