GSXR 600 & GSXR 750 Cylinder Head Stud Kit 2004-2025 GSX-R Suzuki
EDR Performance HD Head Stud Kit for 2004-2025 GSXR 600 GSXR750
FITMENT:
2004-2025 GSXR600
2004-2025 GSXR750
EDR Performance is a leader in Performance & Engine Builds with multiple national championships, club championships around the world, HUNDREDS of race wins around the work, multiple track records, Daytona podiums and more. EDR built and tuned engines have always been the top placing and highest trap speed bike in the country as well as MotoAmerica/AMA series year after year.
We have found the oem cylinder head bolts lack the strength to hold up to big power and high speeds. Not only in the fact it is a bolt, instead of an actual stud and the material is an extremely low quality at best. For the average everyday commuter they are fine, but for those of you out ripping these things HARD, racing them, track-days and such the head gaskets will start to fail! Our custom EDR HD Cylinder head stud kit gives you much higher clamping load on the cylinder head so when the pressure is up due to higher heat, more load, higher speeds, more compression and horsepower, your head gasket will hold!
The GSXR600/750 are some of the most reliable engines out there, even our world famous 170+ rwhp GSX-R 792 Superbikes, however the head gasket does take a beating and typically will last only 1 season at best. Now with our stud kit that is a non issue! Also our stud kit has the ability to be used again and again during refreshes, unlike the cheap oem bolts your stock engine uses that are one time use. If you are going to push your GSXR to the limit, insist on the best, EDR Performance Head Stud kits!
EDR solved all this with our completely custom HD cylinder head stud/nut kit. Not only do our cylinder head studs/nuts allow for greater cylinder head torque and the ability to contain all the power/heat and pressure. The studs have a recessed allen socket top, this allows your builder or yourself the ability to remove and reinstall several times with zero threat of damage to the threads!
The kit comes complete with all the necessary HD cylinder head studs (10), HD cylinder head 12pt nuts (2 x HD SS for M6 bolts) Also included are detailed install instructions along with the proper recommended thread lubricant as needed. Installation is as easy as the OEM fasteners.
YOU CAN INSTALL WITHOUT REMOVING THE CYLINDER HEAD FULLY!
MUST CONTACT US FOR DETAILS FIRST
Key points about head studs:
-
More even torque distribution:When tightening a stud, only the threaded section on the nut is twisting, allowing for more consistent pressure across the clamping surface compared to a bolt which twists along its entire length.
Better for high-performance engines:Studs can withstand higher stress and are preferred for modified engines with increased boost or horsepower where head gasket integrity is critical.
Easier reassembly:Since the stud remains stationary, it's easier to align the cylinder head during reassembly.
EDR produced stud kits are EXCULISVELY designed in house at our location by our head engine developer, Eric Dorn. Eric, who in his 30+ years and thousands of race engines has learned one of the most common failures in modern high performance engines is head gasket failures. One of the main reasons is todays OEM's use inferior, cheaply manufactured head bolts.
EDR produced head stud kits only use premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels.
Secondly, each stud is placed vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.
Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine).
Because EDR produced studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.
EDR produced studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are cut/threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.
These products are intended for closed course off road competition use only. Use of this product for any other purpose is strictly prohibited. The buyer assumes all responsibility to local laws, regulations and use. All 3D products by EDR Performance, INC are made to order therefore non cancelable, refundable or returnable. We always will warranty any item needing 1 year from the date of purchase. Racing parts are never legal for sale or use in California or any pollution controlled vehicle.
These products are 100% made to order, as such there is no cancellation, returns or refunds. If you need to make changes please contact us directly via email with your order number at Info@edrperformance.com. No exceptions unless EDR Performance Inc gives written confirmation.
