KTM 890 Duke DukeR 790 HD Cylinder Head Stud Kit by EDR Performance Superhooligans

$ 225.00 $ 275.00
Vendor: EDR Performance

Available: In stock



EDR Performance, the proven leader in KTM 790/890 engine builds & tuning has a solution for one of the weak links on the KTM middleweight twins!

EDR Performance is a leader in KTM 890 Performance & Engine Builds with multiple national championships, Super hooligan National championships, track records, flat track wins, club race wins, Daytona victories and more. EDR built and tuned KTM engines have always been the top placing and highest trap speed KTM's in the MotoAmerica Super hooligans series year after year. 

We are pleased to announce our custom HD Cylinder Head Stud kit availability for the KTM 790 and 890 engines.

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 ARP 8740 Chrome moly 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! 

We have found the KTM 790/890 twins to be one of the most reliable engines out there, even our 130+ rwhp ones, 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 KTM twin the limit, insist on the best, EDR Performance Head Stud kits! 
The studs are heat-treated 8740 chrome-moly, centerless ground, and have

J-formed rolled threads after heat treat for maximum strength. Heat treated to deliver strengths of 180,000-210,000 psi!

The kit comes complete with all the necessary HD cylinder head studs, HD cylinder head 12pt nuts, HD heat treated cylinder head washers, and both outer cylinder head bolts (APR 300 SS for the smaller M6 outer bolts, nearly 3x over the oem bolts) Also included are detailed install instructions along with the proper recommended thread lubricant as needed.  Installation is as easy as the OEM fasteners.
These studs and bolts are reusable for multiple rebuilds, unlike the OEM fasteners.
Please note some products are intended strictly for non-road registered motorcycles used only in racing and off highway use. We adhere to the highest standards of tuning for performance while prioritizing reliability and rideability!!

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