Although the factory connecting rods can easily handle 1,000 horsepower or more, stronger rod bolts are generally recommended at 800 hp. At higher horsepower, elevated rpm, and with age, the factory 7/16-inch diameter rod bolts become a formidable liability.
How much hp do you need for stronger rod bolts?
High engine speed is the best way to avoid the kind of rod-bending cylinder pressure (i.e. torque) that a 6BT can create under big load and at low rpm. Although the factory connecting rods can easily handle 1,000 horsepower or more, stronger rod bolts are generally recommended at 800 hp.
What RPMs should I subject my rods to?
Subjecting factory-based rods to this type of environment is almost always done in single turbo applications, where the engine’s peak horsepower is made above 4,000 rpm. High engine speed is the best way to avoid the kind of rod-bending cylinder pressure (i.e. torque) that a 6BT can create under big load and at low rpm.
How much horsepower does a 6BT block have?
In high horsepower, race-only type applications, the 6BT block has proven capable of standing up to 1,400 to 1,500 hp so long as torque output is kept below 2,500 lb-ft (usually accomplished with high-rpm operation). Somewhere around 1,500 horsepower, the block is on borrowed time and may eventually crack.
Are head studs better than bolts?
In other words, head studs are better suited for high-performance vehicles with greater power requirements, while head bolts are more practical for personal, everyday automobiles. Therefore, it would be inaccurate to conclude that one type of fastener is categorically superior to the other.
What is the point of head studs?
The use of head studs will aid in cylinder head installation, simply from a standpoint of gasket and head alignment. This is especially helpful in an application where frequent head removal will occur. In terms of function, the use of studs provides much more accurate and consistent torque loading.
What do aftermarket head studs do?
Aftermarket head studs are vital for high-performance engines with high compression or turbochargers, both of which experience extremely high internal cylinder pressures. ARP studs are a popular upgrade in automotive racing engines, and are proven to be more durable than OEM head bolts.
Do you torque head studs?
Do I need to re-torque my head bolts or studs? If you follow the ARP installation instructions, there should be no need to do a re-torque. However, it may be necessary under certain circumstances if the gasket manufacturer's instructions require it, particularly if a fire ring has been installed.
Why are ARP head studs so expensive?
ARP stuff is typically more expensive than other brands, but again, that's because they use more expensive materials, and the manufacturing process, from heat treating to machining, is more involved.
Why do people stud diesel engines?
The design behind a head stud is to have a fastener that does not stretch. This is done by using a high tensile strength alloy and a stud rather than a bolt. The stud allows for a fine thread nut on the top which will result in a more precise torque of the head.
Are Track Tech head studs good?
TrackTech releases the strongest head studs in their class for Powerstroke, Duramax, and Cummins pickup trucks. These studs are tested and validated at 240,000psi using state-of-the-art UTM tensile testing machines making them the strongest on the market for their purpose and price range.
Can you replace head bolts with studs one at a time?
Registered. Yes, you can replace one stud at a time without changing the gaskets.
How do you torque head studs?
3:526:38The Easy Way to Install ARP Head Studs - YouTubeYouTubeStart of suggested clipEnd of suggested clipWhen you're just snugging them up next it's time to get out the torque wrench. And start torquing.MoreWhen you're just snugging them up next it's time to get out the torque wrench. And start torquing. Again follow the OEM recommended torque sequence for the cylinder head in this case.
Should I use threadlocker on head bolts?
Should I use threadlocker on head studs and bolts? NO. Ok, maybe that was a bit harsh, but you should never use thread locker on head bolts.
Will ARP black oxide bolts rust?
Black Oxide adds a layer of corrosion and abrasion resistance to fasteners. Like any material, black oxide treated fasteners can rust in the right environments.
Should you put anti seize on head bolts?
0:000:45How to Use Loctite Anti-Seize Lubricant on a Cylinder HeadYouTubeStart of suggested clipEnd of suggested clipAnd softer aluminum regardless of the head material. You can eliminate breaking.MoreAnd softer aluminum regardless of the head material. You can eliminate breaking.