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The B230K 700

posted by  someone claiming to be broken login guy on  Wed Jan 29 08:39 CST 2003 [RELATED]

"230K was the last carb evolution (230A basically modified to accept unleaded and lower octane rated fuel)."

Hold on a sec...

The B230K (and it's underbored sister, the B200K) were a whole new variation on the B2xxF theme.

The B200/230K use a Heron-head design. This oddball design features almost ZERO combustion chamber in the head. The piston tops are REALLY dished, and this is where the combustion happens.

Also, the carburetion/intake is COMPLETELY different from the B17/19/21/23/200/230A engines. Those engines all used a single sidedraft carburetor (SU, ZS, and even Pierburgs were used). The B200/230K uses a single DOWNdraft carb, a Soles/Cisac or Pierburg. The manifold itself is the self same as used on the B21FT. It is a lousy manifold.

The Heron head design is said to allow higher compression ratios on lower octane fuel, without pinging/pinking. It was the last dying breath of the carbureted Volvo.






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