PROSTOCK An affordable mild version of a full mod. The PROSTOCK's are rated at 5 5. 5hp, full mod's 6 6. 5hp, and full mod long rods 7 7. 5hp. We guarantee performance of this top end to be as much if not more than similary priced ported top ends from our competitors. < span>< p> The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the">
(Our porting is not shown in picture) < p> PROSTOCK An affordable mild version of a full mod. The PROSTOCK's are rated at 5 5. 5hp, full mod's 6 6. 5hp, and full mod long rods 7 7. 5hp. We guarantee performance of this top end to be as much if not more than similary priced ported top ends from our competitors. < span>< p> The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the">
(Our porting is not shown in picture) < p> PROSTOCK An affordable mild version of a full mod. The PROSTOCK's are rated at 5 5. 5hp, full mod's 6 6. 5hp, and full mod long rods 7 7. 5hp. We guarantee performance of this top end to be as much if not more than similary priced ported top ends from our competitors. < span>< p> The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the">