Engine Kits

Comp Cams 12-416-8 Xtreme Marine Camshaft XM264HR Chevrolet
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Comp Cams 12-416-8 Xtreme Marine Camshaft XM264HR Chevrolet



Part #: 12-416-8
List Price: $586.88
Our Price: $293.44
You Save: $293.44



Good for Inboard/Outboard Pleasure Boat, Good Economy.

Mild street performance to mild race
Key Benefits: Modern, aggressive roller profiles, reduced friction, low maintenance, reduced valve train moise, more power than conventional hydraulic flat tappet camshafts
Limitations: Increased cost, limited rpm range, profile limitations

These cams contain all of the same benefits and limitations as a standard hydraulic roller cam; however they include a specialized base circle to accommodate the taller hydraulic roller lifters in blocks that were factory equipped with a flat tappet valve train set-up.

Advertised Duration 264 int./270 exh.
Advertised Exhaust Duration 270
Advertised Intake Duration 264
Basic Operating RPM Range 1,200-5,200
Brand COMP Cams
Cam Style Hydraulic roller tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 212 int./218 exh.
Exhaust Duration at 050 inch Lift 218
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.495 in.
Grind Number CS XM 264HR-12
Intake Duration at 050 inch Lift 212
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.488 in.
Lobe Separation (degrees) 112
Notes Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.
Part Type Camshafts
Product Line COMP Cams Xtreme Marine Camshafts
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.488 int./0.495 exh. lift