Polaris RZR 900 HP4 Valve Train Kit

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!cid_image002_jpg@01D07EA1With today’s modern ATV 4-Stroke engines, making additional Horsepower is no easy task…This makes it critical that Engine Tuners have the Experience, Knowledge and Equipment to do the job properly.
Duncan Racing International’s HP4 Valve Train Kit is designed to give you the utmost in performance and reliability by using the most advanced equipment and techniques in the industry.

All porting work is performed by our master technician and valve seat cutting is done on our in-house SERDI valve seat cutting machine.Kits come with Oversized Valves(+1mm S/S), HP Valve Guides and Lifters, Hi Performance Camshaft Set (multiple grind options), Hi Performance Valve Spring set with Titanium Retainers Head comes Reassembled with Valve Lash (shims) Preset- Head Read to Bolt onWorks Excellent with 900cc, 935cc, 970cc Engines.Race or RecreationDRI-RZR 900 HP4 VALVE TRAIN KIT (2)

PERFORMANCE GAIN: *8+ HP *Results vary depending on camshaft profile and piston compression, intake, exhaust & ECU.

ENGINE MODS RECOMMENDED: also recommended -Forged Pistons, Vortex ECU, Hi Flow Air Cleaner, HP Exhaust System

MODEL: 2011-14 Polaris RZR 900
DRI HP4 PURCHASE OPTIONS HP4 KITS are OFFERED IN 2 OPTIONS: 1. DR-900KP: DR does all Port/Machine work-supplies Customer with all necessary Parts-Customer must send in stock head and stock camshafts or pay core charge. 2. DR-900KPH: DR Supplies New Head and Camshafts and does all Port/Machine work-plus supplies Customer with all necessary Parts-Customer sends in Nothing
DR-900KP – $2495.00 DRI Valve Train HP4 Kit. Includes: DR Head Port, SERDI Valve Seat Machining Big Valve Kit (+1mm S/S IN & EX), HP Valve Guides, HD Valve Spring Kit w/Titanium Retainers, Hard-Faced Camshaft (see cam profile options below), 8pc HP Valve Lifters

DR-900KPH – $3400.00 DRI Valve Train HP4 Kit Includes: NEW HEAD and NEW Camshafts, DR Head Port, SERDI Valve Seat Machining Big Valve Kit (+1mm S/S IN & EX), HP Valve Guides, HD Valve Spring Kit w/Titanium Retainers, Hard-Faced Camshaft, 8pc HP Valve Lifters

Duncan Racing International, Inc

10734 Kenney Street Suite A – Santee, CA 92071

Phone: 619-258-6306 – Fax: 619-258-6309

www.duncanracing.com

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