*** Mini ATV Performance Parts *** Can-Am, Dinli, Arctic Cat, Bombardier, X-treme, E-Ton, Kasea, Polaris, DRR & more... Phone:  (972) 481-8708 Fax:  (469) 916-8068 Email:  Home ATV Parts About Koso Contact Us Find Dealers - Performance Parts - * New Items * All 4-Stroke New! Clutch Engine Intake & Carburetor Exhaust Gauges Suspension Wheels & Brakes Accessories - Performance Kits - Motor Kits Suspension Kits - Pictures - Photo Galleries - Dealers - New Dealer Inquiry - Go Back - HI-COMPRESSION HEAD Hi-compression head with 180 psi static pressure. Head can be made with more or less pressure to match your specifications. 52mm bore. See also: Ported Cylinder Kit Part Number: HICOMPHD MSRP $64.95 Copyright © 2004-2008 Maximum RPM. All rights reserved.