Why is GoWesty's 2.2 liter piston & cylinder (P&L) set more expensive than the cheaper sets I find online?
1. Our pistons are made correctly—theirs are not. The piston dish is too large (49cc compared to 48cc), and the wrist pin location is 1mm too high (the piston does not come all the way up to the top of the cylinder!). This means that, once you install the made-in-China set, your compression ratio will be below 8:1. The fact that the piston does not come right to the top of the cylinder means you lose a critical "squish volume," which is critical for proper combustion. Thus, even though the engine is 100cc larger, it will make less power and torque than your original 2.1 liter, 90 horse-power engine, get worse gas mileage, and may not pass smog.
2. Our pistons are made in the USA instead of China. You might think, "Yes, I want to buy U.S. products, but I don't want to waste my money for the same thing I can get for less, even if it's from China." We get this, and we feel the same way. If we could get Chinese manufacturer to make pistons correctly, we would consider buying them. But they won't or can't, and so we opted to do it right, right here in the USA, which is expensive.
3. Our pistons are forged—theirs are cast. Truth be told, cast pistons for this particular application, when made correctly, are strong enough under normal conditions. But if you have a short period of extra stress for some reason (like blowing a hose, or just ultra-heavily loaded vehicle climbing a steep hill on a hot day), the extra strength just might save the vacation.
4. Our pistons are made to accept the absolute best-on-the-planet, cutting-edge Japanese-made piston rings. Their pistons utilize really poor-quality rings. Our rings will not burn oil or wear out prematurely, guaranteed.
We have checked every cheap Chinese-made set of pistons and liners available, and we have verified that none of them are made correctly. None of them.