Most people associated with the automotive industry have a misconception about fasteners. They believe that the more torque you apply, the lesser is the possibility of joint separation. In most cases, it ends up in lifting the cylinder head.

When it comes to getting the best, most companies will continue to advertise “bigger the better” as the fasteners can help attain improved torque that permits a safe engine for your vehicle. Therefore, today we will discuss all the science behind choosing a suitable head stud.

Let’s get started.

Torque vs bolt tension

To start right, you need to understand and accept that bolting the cylinder head in a downward direction will force the bolt’s head to push it against the head gasket of the block. The connection between tension and torque has to be well-balanced and maintained. Here, the conditions of the fastener may change dramatically and affect the lubrication and contamination.

While torque is a measurement of the twisting force which is required to spin the nut apart from the threat of a bolt, tension is the stretch of a bolt required to clamp the force of a joint effectively.

The right process of head stud selection

Get started with exploring the complete range of head studs available in the market. Surf through the popular and widely purchased studs which include – 11mm ARP L19, IAG 14mm ARP2000, P&L 13mm ARP2000, 11mm (stock replacement) ARP2000, etc.

Generally, the OEM bolts are torqued to be yield. It means that they are neither reused nor torqued higher than the specifications. The nature of the head studs depends on the brand or quality you pick. For instance – tracktech head studs come with better thread engagement without hampering the vehicle quality. This not just reduces the overall friction, but distributes the thread loading time as well. If you are still unsure about it, we suggest collaborating with an automotive expert for this.

An analysis is a must

A detailed and accurate analysis is needed to check the degree of stud lubrication because to ensure that it is  clean and smooth to work. Inspect the size, torque,  and clamp load volume of the head shot to see if it will work according to your requirements. After doing the analysis and research, you may find that smaller head studs perform better at standard torques. All in all, the smaller the head stud, the larger the clamp load would be. Although, it is no rocket science, yet if you get stuck anywhere, you can consult experts for this.

The bottom line

It is necessary to hop on the right head shot to keep the machine working smoothly. Experts suggest looking towards the amount of torque it will bring into the stud when switching to a bigger head stud. This is necessary to judge the optimum operating range without compromising on the flawless working. When you opt for higher torquing head studs, you risk pulling the threads, head casing, or distorting the entire block. If you witness any such circumstances, it is advisable to seek advice from an expert immediately.

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