Billet Head Kit / AXYS 800 '15-17 SKU # 04-316
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SKU# 04-316
Easy bolt on power for your 800 AXYS! This head has more than twice the cooling capacity to keep your motor running cooler to maintain horsepower by staying below the 120 degree timing curve. This custom BMP head utilizes the larger updated 2018 Polaris thermostat for even more flow!
We offer two different dome configurations:
800-37.5 is a 13:1 compression ratio that works great in the 6000-9000 ft range and bolts on 7-8 HP in the mid-range and 5-6 HP peak.
800-41 is our lower compression version for sea level to 6000 ft and gains 4-5 HP. The stock 12.7-12.8:1 compression ratio makes the
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