Wanted...I need a small model nitro engine for a 1/10th scale model car. Size 15 or 18.The engine does not have to be complete, if it is missing anything that's ok ,pull start,exhaust,carb,etc ..as long as the main body with piston and liner I may be able to fix it up.Thanks in advance for any help on this..My engine had a bearing fail and damaged the piston and scored the liner,It was. HPI 15.Once again any help would be appreciated on this...thanks....I am in Birkenhead CH42