400/450 stroker....Cheap parts, lotta work.

66fs said
Are these corrections to stock length valves? Or should we be checking factory setups to see how far off they are?

Seems like anytime you go to a roller tipped rocker arm there will be corrections to be made. These are very close to standard length valves.

LowDeck451 said
A few years ago, I think it was you or Challenger340 that posted pictures of how and where to grind the block and crank for a 400/451. The counterweights had a 45* cut on the edges and the block was ground in the area you’re showing IIRC? His point was, a guy could do this part at home and not pay the machine shop. Does this sound right? Thanks.

I've seen the post to which you refer but I had nothing to do with it. The method I've posted is the only way I have done it.