Topic: HIPO connecting rods?

[wunderwerks]

A friend of mine just purchased a large parts collection from an estate and included is a block with a VIN # stamped on the side of the block plus it has the HIPO main caps.  Other than that it is a bare block. In other parts is a set of connecting rods.  Other than the bolts holding on the rod caps, what is the difference between a standard connecting rod and a HIPO rod?  I assume the bolt hole is larger but are there any other differences?

[jwc66k]

Casting numbers are the same, C3AE-D. They are machined different than the standard to accept the 3/8 bolts. This results in a different inventory part number.
Jim

[wunderwerks]

With consideration of the balancing is there any reason that you would not bore out the bolt holes on standard connecting rods and caps to accept the 3/8s bolts?  Are they physically identical in size (except for the holes) to a standard rod?

[CharlesTurner]

Casting numbers are the same, C3AE-D. They are machined different than the standard to accept the 3/8 bolts. This results in a different inventory part number.
Jim

Yes, you're right on the main body of the rod, but the rod end caps are unique to a hi-po.