Cosworth YB Race Engines | Smith & Jones Engineering

Welcome to Smith & Jones Engineering

Smith & Jones Engineering specialise in the manufacture of Cosworth YB cylinder heads and cylinder blocks.

YB cylinder heads and cylinder blocks are manufactured from our proprietary motorsport castings.

S&J works closely with the Grainger & Worrall foundry, who always ensure the supply of first-class aluminium and premium iron castings.

In-house product development and engine test work combined with continuous feed-back from top YB engine builders ensures S&J products are strong, reliable and well proven.

To compliment our YB cylinder heads and blocks we offer our recommended supporting engine parts - if you are looking to build a Big-power Turbo Cosworth, Historic Engine or Naturally-Aspirated YB we can help you out.