What is a "matched" engine anyway?
Hi,
Heard a lot about "matched" piston and sleeve, what is this "matching" process anyway? My LHO said "matching" is the difference between a NSR S5 piston and sleeve that cost about 100 bucks, and a Max S5 piston and sleeve that cost about 250....
Could someone enlight me about what this process is, and how its done?