Those $20X.00 4340 H beam connecting rods on eBay-
That's pretty close to what I used but I the rods I have got ARP rod bolts. And I made damn sure they weren't ARP copies. I found out who the supplier was and ARP verified they supplied the rod bolts.
All those rods come out of 2, maybe 3 different manufacturers. Make sure you check the sizing and hope they are small. I've never found them big which IMO is the way it should be.
And they say in one place the pin diameter is .927 and another it's listed as .984 and the pin end width is .927 so I'd double check before I ordered.