Main and big end question ?
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blackE30indy
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Can anyone give the specific size variations of the bearing shells for both mains and conrod please? Standard sizing with all possible colours?
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Grrrmachine
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Which engine?
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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blackE30indy
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M20 2.5 mate 
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ross2009
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what do you mean size variations ? they shouldnt alter on standard sizes or you want to know what over size bearings there are with colours ?
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Simon13
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big ends have only one size, per size where as mains have 3 different colour classification per size of shell
So bigs come in stock 45mm size red and blues (red fits in the cap, blues in the rods) then you have +0.25mm reds and blues then 0.5mm reds and blues.
mains are stock 65mm iirc so white, green and yellow. They're for a stock size main end but they are in fact all slightly different sizes.
Then the same for +0.25mm come in white,green and yellow. Then same again for +0.5mm shells
So bigs come in stock 45mm size red and blues (red fits in the cap, blues in the rods) then you have +0.25mm reds and blues then 0.5mm reds and blues.
mains are stock 65mm iirc so white, green and yellow. They're for a stock size main end but they are in fact all slightly different sizes.
Then the same for +0.25mm come in white,green and yellow. Then same again for +0.5mm shells