hyper has rods that uses "serrations" to help tie the cap to the rod when bolted together. almost like to jigsaw pieces fitting together. They use this on their heavy rods for ss and pro applications.
you should consider looking into billet rods, what hyper gets for his rods you may want explore some other options lemke, riverside, colberg and cunningham would be a good start... I have seen new rods from hyper with the tiger jaw that needed to be sized when the customer recieved them, in short make sure you are getting what you paid for. Just trying to help!
wrenches are alot different from a connecting rod, billet rods are better in my opinion. billet rods are machined out of a solid piece of tool steel then heat-treated, forged rods are like what comes out of any factory engine. (much easier to produce)
hypers rods are forgings which means the grain structure follows the shape of the rod rather than straight through the plate as in a billet. Now here is the key with billet parts... billet parts have the capability of being of higher strength than a forged part. But it depends on what kind of steel the part is made from since most billet and forged rods are made from the same material the forging would be stronger because of the grain structure.
I like Cunningham rods. Hypers are heavier, and it isn't needed on a 3 charger super, and I doubt you need them on a 4 charger super. The only thing that sucked about Cunningham is it takes 8 weeks minimum to get them, but they have a very nice rod.
thank you! have said pretty much what I wanted to say before a herd of cows interrupted me! forging only makes economical sense on large numbers,I don't think there is anyone eccentric enough to set up a forging line for one off lengths used in tractor pulling applications .
What works great is making the Billet parts out of the Steel used to make the Forging Dies used to form the steel. I would think a good set of Billet rods (6) would cost thousands because of the steel price. What also works is Heat Treating the Factory Forged Alloy steel rod. I have found that all rods are not the same. You can take a set of 6 rods out of a stock engine, Heat Treat all 6 at the same time, and 2 rods may change size so bad they can't be used. This tells me that there was something wrong with the rod before heat treat. Maybe cracked? Bent? junk steel ?
