The new Dart aluminum Honda block to solve the shortcomings of production blocks used in high-performance and competition applications. Dart offer the Dart block in B18 and B20 versions. Both are built to withstand the extreme cylinder pressures created by turbochargers and nitrous oxide injection. Dart increased wall thicknesses in all critical areas and beefed up the bottom end with steel main bearing caps. Best of all, Dart blocks are compatible with production Honda cylinder heads, internal components and accessories. Dart added the features that sport compact racers and performance enthusiasts need to build powerful and reliable engines.

Main caps: Steel
Main brg dia: Std.
Deck height: 211.5mm
Bore: 84.5mm