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This is a Stage 3 engine kit for the 224cc Predator engine, aimed at go-kart builders who want a serious jump in power over stock. It adds a racing camshaft, a 22mm Mikuni-style carburetor, a billet connecting rod, an aluminum flywheel and a flat-top piston to the Stage 2 parts, and Predator rates it at 13-15hp or more. The two cam choices change what you get: the 252 package brings 26lb springs, chrome moly pushrods and reinforced rocker arms, while the Rattlesnake package is cam and 22lb springs only. It suits builders who will port or mill the head, since the kit itself does not touch the head and Predator recommends milling it about .050 inch for maximum power.
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The Stage 3 Speed Kit is a performance upgrade for the 224cc Predator engine. It steps up from the Stage 2 kit by adding a racing camshaft, a 22mm carburetor, and a billet rod. The kit produces 13-15 hp or more.
Two cam packages are offered. The 252 Cam Package includes the cam, 26lb springs, chrome moly pushrods, and reinforced rocker arms. The Rattlesnake Cam Package includes the cam and 22lb springs only.
For maximum power, the head should be ported and/or milled. Milling .050" is recommended. Spray the air filter with K&N type oil, especially in dirt applications. Oil is not included. An optional header/exhaust is available. It should be supported with a bracket or brace to the frame or the engine, or the pipe may fracture or break. The kit does not fit Hemi style 224 Predator engines or any 212 Predator engines.
