BC0983 - Polaris Pro R (21-up) Stage 3 Normally Aspirated Race Spec (pair)
Regular price
$799.00
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Designed for modified engines. Requires BC valve spring kit, seals and guides for clearance due to high lift. Must run with aftermarket pistons with proper valve reliefs built-in. Cannot be ran with stock/OE pistons due to possible piston to valve contact.
Adv Dur (.020")
265°/265°
Dur @ .050
240°/240°
Valve Lift (1:1)
.450"/.450"
Valve Lift (mm)
11.43/11.43