DynoCams, 308 Grind, Welded Lobe GX390 Core Predator 420 13-16 HP Clone

This cam is easy on the valve train and has a very wide power band. This cam requires an upgraded spring package, billet rod, and billet flywheel.

Engine: 13HP Honda GX390, Predator 420, DuroMax 420/440, and most 13 HP clone engines

Specs
Engine: 390cc OHV Clone 13HP
Recommended Class: Modified
Target (MAX) RPM: 7200
Spring Pressure (In / Ex): 48-50 lbs Dual Spring
Valve Lash (In/Ex): .003"
Ignition Timing: Pump Gas Not Recommended
110 Octane 32 Deg BTDC
Methanol 36 Deg BTDC
Compression Ratio: 12 to 1

Profile
Intake Exhaust
Open: 53.5 BTDC 91.0 BBDC
Close: 91.0 ABDC 55.1 ATDC
Lift: .308" .308"
C/L: 108.0 ATDC 108.0 BTDC
DUR @ 50: 244.2 Deg 244.6 Deg

THE LOBES ON THIS CAM ARE WELDED.

Processed and ground by the hard working employees of DynoCams in the USA.

We do not accept returns on any electrical components.