If you can acheive a larger displacement in the same size engine case, then why not? That's what we said. This Italian manufactured engine is extreme high performance, incorporating all the state-of-the-art features necessary to win world championships. Mega-sized displacement at .28 in a specially constructed .21 crankcase with ABC piston and sleeve. The Picco .28 will fit in nearly every vehicle that uses a standard or pull-start 21 engine. This engine will be replacing the Picco .27

Optional sized carburetor throat inserts: 7mm, 8mm, 9mm

The larger the diameter gives you more power, with more fuel consumption. The opposite applies as the diameter gets smaller. This allows you more flexibility in your racing/fueling strategy. For example: You may opt for slightly less power with better fuel economy in the hope for less pit stops.

 

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