*Price Reflects Upgraded Rings

14 HORSE POWER GAIN!

This 10.5:1 oversize bore kit increases displacement from 1290 to 1397cc and really brings new life to a 1300 engine. This 8% increase in cylinder volume increase HP 8%.  The increase in compression to 10.5:1 adds another 5 HP, bringing the total gain to an estimated 14 HP. A stock 1300 twin weber engine goes from 112 HP to 126 HP. This makes a huge difference in performance. This kit comes with standard rings and pins. No standard pins available. No modification to block necessary.These liners are rebored from good core 74mm 1300 liners. They are true to .001" for taper and out of round. They are fitted to our 77 mm pistons at .003" to .0035"

Add core charge of $200. This will be returned with your good core 74mm liners.

When we are down to our last set of liners on the shelf we must require that you send in your 77mm liner cores before we ship. We are truly sorry to inconvenice you.

*This piston set includes standard wrist pins (84 grams) and *UPGRADED TO TOTAL SEAL CONVENTIONAL RING SET.  You should consider the following upgrades:

• Upgrade to light weight pins (62 grams) for an additional $60.00.
• Upgrade to Total Seal conventional ring set with ductile compression ring.  $27.00 extra (*the standard Deves cast compression rings can fail in high rpm engines that rev to 7500 and above).
• Upgrade to Total Seal gapless second ring set for more HP.  $129.00 extra.
• Upgrade to Total Seal gapless top ring set for even more HP.  $159.00 extra
  (check out HP gains at Total Seal HP Gains).

If we do not stock the appropriate compression piston for your engine needs, we will be delighted to help you with a special order set. We also sell single pistons and pins if you damage one and need a spare.  Please call us for more information. 1-800-552-ALFA.