rwautomotive

Hi hope some one can help I have just installed std acl race bearings on my b20 build and the clearances on all 5 caps are a even 0.024 mm I no this is right on the limit on the spec of 0.024 to 0.038 new. just concerned if this may be too tight?

1HGEJ2

iTrader: (1)

yeah its really tight! go with acl race hx or mahle clevite race hx bearing or king xp hx

rwautomotive

Thanks that was my next thought. Am I also correct thinking you can mix half bearings ie half std and half HX ?

1HGEJ2

iTrader: (1)

I wouldnt mix...put hx on the main..on rod too.

blackeg

you can mix oem's by 1 color difference, dont mix hx and regular the difference is too large. definitely run the acl's on your rods

rwautomotive

Thanks guys il give the hx a go and check my clearances again