ARP 2000 Series Head Stud Kit to suit Nissan RB20 / RB25 / RB30 Twin Cam / CA18 (AR202-4309) rd brace they expand and contract in

they expand and contract in size and the our Constant Tension clamps outer ‘Spring Action Band’ works to maintain consistent force & load for maximum reliability

Part number: AR999-4215

PRO + - Pro Series Hardened Billet Steel 4140 Steel Cut Crank Gear / PRP Rear EN36 (25rockwell) Blackened/Hardened Washer (1500HP + / 10

Is a tried and proven system that has been used for DECADES in Indy and Nascar applications

Redesigned from the ground up

ARP 2000 Series Head Stud Kit to suit Nissan RB20 / RB25 / RB30 Twin Cam / CA18 (AR202-4309) rd brace they expand and contract inPart number: AR202 4309 ARP 2000 Series 11mm Head Stud Kit to suit Nissan RB20DET, RB25DET, RB30ET With Twin Cam Head & CA18DET. Alternate part numbers: AR2024309 202 4309 2024309 Q. Which ARP head studs should I use? 625 or 2000's? A. In our opinion and using logic, the performance of a bolt is strictly limited to its stretch. The stretch is what gives the benefit of tension of a cylinder head. Now the only thing that separates a ARP 2000 and a 625