and this combination is possible with olds drc block.
has anyone seen this big-engine?

Tim

Are you just curious or are you seriously considering going with a mountain motor? Huge CID engines are not very practical due to costs, lack of parts availability, specialty application, etc, and thats here in the U.S. You can build a 632 for around $20,000 because there are many manufacturers making the parts. A 750" + motor is going to cost HUGE money and the 1 or 2 specialty manufacturers will rape you on componets. 815" is the biggest I've seen, and that was using a "ford" derivative block, I believe the stroke was 5.30"

jdnca1 :

I dont want to say I am serious for the moment but I have a project for future. And offcourse costs will be one of the major factor while making desicion.

I agree with jdnca1.
Any thing after that(632)is silly money...If a 632ci motor dosen't have enough TQ for you...throw on a 14-71 and let it fly.

Why not just weld a couple of 502's end to end and have a 16 cylinder 1004 cu in.

There is a specialty crank available to put 2 small block chevs together to make a V16. It is 2 pieces and splines of one fit into the other, it would only yield 700 - 725 cid tho depending on the bore

nw-jim & ursus : nice idea..