Same bore, longer stroke, shorter piston. As far as pricing is concerned the kits start from $899.00 and with all the good stuff (forged pistons, forged crank, H or I beam rods) they go all the way up to $22/2300.00. Yea, you can definitely feel an extra 100 horse. If you have 300 HP today, and you ad a 100, that's a 33% increase in power. On a 600 HP motor you don't feel it as much. Only 16% increase in power.
Ron
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