I D connecting rod. Help please

[Heathracing]

need some help on rods. I need to replace a few rods but do not know tinge brand. They are large journal sbc 6" rods. The cap screws are 7/16 with 1.460 under head length stamped arp. Only markings on the rod are USA and. A 2 letter code.

[Heathracing]

here is a pick. Crank is an older crower ultralight crank.

[Lizardracing]

Your engine doesn't care about brand names as long as the small/big end sizes and weights are the same and of course the length as well it doesn't really matter unless like me, your OCD won't allow it. lol

Whats the 2 digit code?

That Number 4 main bearing looks really bad.

[mag2555]

Speaking of ultra lite cranks, you need to weigh that rod to get a overall weight as if it's a Crower they have tons of different weight Rods to pick from!

[SupStk]

Think I'd get it completly apart and mag the crank and rods. Might not have much there to work with.

[piston guy]

RPM from China is my guess.

[Keith Morganstein]

Very "skinny" rod. It looks nothing like a Crower or any other premium rod.

And I agree, that crank looks in tough shape.

[Heathracing]

It's a crower ultra light crank an it had cp ultra light pistons. They are older possibly 10 years. I highly doubt they would spend over 2k on a crank and 1000 on pistons and skimp on the rods. I did spin a couple of bearings but the crank took the bearing material. It's getting pulled and checked soon. I was just wondering if anyone knew whose rods they were. I thought they were eagle based on bolt size but I can't find any older info online. Bolts are arp 7/16 1.460 under head length. Thanks again

[shoedoos]

search for the early K1 products when the company was connected to Carrillo and Wiseco....