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Mains bearing set (std) Cosworth YB from YBB1614

Mains bearing set (std) Cosworth YB from YBB1614
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No Longer Available
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Genuine Cosworth sourced bearings. Journal diameter 56.975/5....
Description

Details

*** NO LONGER AVAILABLE *** Genuine Cosworth sourced bearings. Journal diameter 56.975/56.959mm. Keep width: 3.9mm block 4.8mm main cap.

From YBB1614 - what does this mean?
Early 3 Door Cosworth models with engines up to number YBB1613 (this number is stamped on the front face of the block just above the water pump) had slightly different bearings. The bearing keep (or notch) was the same size in the block and the main bearing cap. Engines produced after this have a wider keep in the main cap. Therefore if you try to fit these bearings to an early engine, the main cap bearings will not fit unless they are modified. This change in bearing design makes it impossible to fit the bearings incorrectly - grooved bearing in the block, plain bearing in the cap.

What's the difference between Cosworth YB and Pinto main bearings?
Apart from the keep width mentioned above, the difference is the main cap bearing. The Cosworth engine uses a plain bearing which is capable of taking greater loads than the grooved bearing found in Pinto sets. Whilst a Pinto set will fit, we highly recommend sticking to the correct bearings that Cosworth have always specified for the engine.

Ford Cosworth YB 16v Turbo
Application: Ford Sierra RS Cosworth 3 door 1986-1987 from engine YBB1614
    Ford Sierra Cosworth RS500 1987
    Ford Sierra Sapphire RS Cosworth 2wd 1988-1989
    Ford Sierra Sapphire RS Cosworth 4x4 1990-1992
    Ford Escort RS Cosworth 4x4 T34 1992-06/1994
    Ford Escort RS Cosworth 4x4 T25 06/1994-1996
Additional Information

Additional Information

Part No SC481AS/STD
Fits Engine Type Ford Cosworth YB, Ford SOHC (Pinto)
Product Group Crank Bearings & T/Washers
Stock Status No Longer Available
Fits Engine Make Ford
Brand Logo Cosworth
Fits Model Variant Ford Sierra (2WD Cosworth)
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