extract from website provided:
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Calico Coated Single Hole Main Bearing Set
SKU: CAL 5M2964H
Calico Coated Single Hole Main Bearing Set
These are Calico Coated ACL Race Main Bearings for any SR. They are an H-Series (harder material and more clearance) race bearing with an oil channel that extends 3/4 the way around it.
$101.97
Manufacturer: Calico Coatings
Coated 5-Hole Main Bearing Set
SKU: CAL 5M2975H
Coated 5-Hole Main Bearing Set
These are Calico Coated ACL Race Main Bearings for any SR. They are an H-Series (harder material and more clearance) race bearing with an oil channel that extends 3/4 the way around it. They also have 5 oil holes to supply the rod bearings with suffici
$151.40
Manufacturer: Calico Coatings
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do you belive the single hole ones could do the job? it'd be really hard to get a machine shop do the groove needed on the block here where i live.... i understand the calico coating gives em superior specs than std...
thanx for the imput so far guys...