Pay in 4 interest-free payments of $156.25 Learn more
Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Perfect for Duning with minimal mods and good gains in the mid-range
AR8691 - Polaris XP Turbo (16-up) / XP 1000 (14-up) ARP CustomAge625+ Head Stud Kit
-Upgraded Valve springs
no modifications required to fit
422" Valve Lift (mm) 11
CNC PORT, 6 Cylinder srt4 Perfect for Duning with minimalCylinder head cleaning & inspection CNC Runners CNC Newen Valve job CNC Surfacing Final Cleaning Send all cores in with invoice, estimated turnaround is 10 15 business days from time of arrival. Cylinder heads that qualify: B58 Gen 1 & Gen 2 (2 port heads are CNC ported Intake side ONLY) S58 2JZ RB26 (Available Soon) Send all cores in with your sales receipt. All machining and assembly services are available, contact us for a consultation regarding
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