If a 194 had enough wall thickness which I don't think it does one could bore it out to3.740 and use stock 305 pistons. The new Vortec pistons are pretty good. Just a thought. Jay 6155
You could sleeve a 250 block and then bore it out to 3.740" for a 305 piston. GM flipped the idea of a wide bore and short stroke of the 307, to the narrower bore and longer stroke of the 305 (using a 262 bore with a 350 stroke), which supposedly is better at making more torque for the same engine size. But the 250 stroke is longer than 3.48", so maybe it might equal out power-wise with the 250?
