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Heads are sold each. 2 heads per motor are required. New complete big valve 041101355 performance dual port cylinder heads for VW Volkswagen 1600cc engines. Larger high flow 40mmx35mm or 42mmx37mm with swirled stainless steel valves for increase performance instead of the smaller 35x32 stock configuration. 12 mm 3/4 reach spark plug hole for better cooling and heat dissipation. Single or dual high rev springs and chromoly retainers for more rpm range. The combustion chambers have redesigned for
increased
efficiency. They are stock bore (85.5)
for 1500cc, 1600cc, 1641cc, 1679cc. It will fit 83mm pistons, 85.5mm,
87mm and 88 slip in barrels. If you need them bored for 90.5, 92 or 94
piston, add $30 per head to cut them for larger cylinders. If you want dual high rev springs add
$30 per head. Intake ports are available in a round port or a stage 2 mini wedge port. The mini wedge port is only available with dual springs.
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