Cams

2 Pack of Heavy Duty Valve Springs for Honda GX240, GX270, GX340, & GX390.Approx 50 lbs at 1.125 installed height, 42lbs at 1.2, with 110 lb open pressure (.375 lift).

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 SpecsEngine: 390cc...

This cam is to be used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel. Engine: 13HP Honda GX390 SpecsEngine: 390cc OHV Clone 13HPRecommended Class: ModifiedTarget (MAX) RPM: 6500Spring Pressure...

The DynoCams 356 is a high lift modified grind that is very capable of extreme RPMs. This cam has very aggressive ramps and requires an upgraded spring package, billet rod, and billet flywheel. For use with Tillotson or larger carb.Engine: 13HP Honda...

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 GX390INTAKELIFT: .308Dur @ .050": 244.2 Deg. C/L: 108 ATDCEXHAUSTLIFT: .308DUR @ .050":...

Severe Duty Valve Springs - Pair Fits Honda GX 240, 270, 340, and 390, Predator 301/420 (Hemi and non-Hemi heads), and most 13-16 HP Clone engines Made of high-quality alloyApproximately 54lb at 1.15"1.65" free height These springs are highly recommended...

DescriptionRequires an upgraded spring package, billet rod, and flywheel. It's also a great cheater stock cam if there are no duration checks.The lobes are hardened for extra durability, extending the life of this cam. ProfileIntake ExhaustOpen: 46.3...