[steve25]

H beam type Rods are in the least twice as strong as 5140 Rods even if they where of the same steel!
Just note that those H beam Rods require Pistons with floating pins most likely.

If your not looking to rev above 7K rpm with more than 4.21" stroke Crank then I have no issue with the 5140 Rods, but either way you may go get the big ends checked by a shop and buy a Rod bolt stretch gauge and get the rods set in the new motor the right way, not with a Torque Wrench!

[Schurkey]

Originally Posted by Tom Vaught

The steel, HEAT TREATMENT used and the MACHINING make the difference.

FIFY.

Originally Posted by steve25

H beam type Rods are in the least twice as strong as 5140 Rods even if they where of the same steel!

H-beams tend to be twice as heavy as I-beams, too.






1. How are you planning to verify the quality of the steel used?
2. How are you planning to verify the quality of the heat-treatment?

That pretty-much means that you're likely only going to verify the machining, if that, and we've seen enormous problems with Chinese engine parts to date. I'll never understand the fascination with Communist products.