[lust4speed]

Building on what Tom said in Post #4, it is necessary to replace known weak areas to let the engine live a long life. This requires replacing the stock rods, and the stock valves. Attached is a picture that was just sent to me a couple of days ago by one of our club members. He had his stock engine rebuilt with a standard valve job and new springs. In less than a thousand miles, the head of a stock two-piece valve broke off and took out the piston and punched a hole in the cylinder wall. Quality of the picture isn't good, but you can get the idea.

Don't sweat the 800 AVS carb, I'm running two of them (2+2 and Cruiser) and they have been the most trouble free carbs I've owned. With the 800 CFM flow and the adjustable air flap, the carb performs excellent.

I would say that Stobin's engine even with the shipping would be a good deal. Problem is that the flat top pistons require either 87cc aluminum heads or 100cc cast iron heads. I wouldn't consider the purchase unless I was going to replace the current heads.

Almost every piston manufacturer now produce a "D" shaped piston dish which retains the quench area, so there is no down side to lowering compression with the pistons.

What I have seen in our area, is $4,000 will almost cover a standard stroker kit, machine work, and cast iron head work to include valves, springs, hardened seats, and cutting the guides for Viton seals. Adding aluminum heads would add another $1,200+ to the price. And this is if you do all your own assembly and don't pay someone to bolt it all together.