All Pro Series flywheel bolt kits feature an exclusive flat 12 point head design and a larger than stock underhead radius for increased strength. Each bolt is centerless ground to ensure the bearing surface is perpendicular to the threads creating equal load distribution and are nominally rated at 200,000 psi. Optimum design, enhanced reliability and increased strength are the main attributes of ARP’s Pro Series flywheel bolt kits.
1989-2002 Nissan Skyline 2.5/2.6L RB25DET/RB26DETT
|Thread Size||M12 x 1.25|