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Dyno Cams 275 Grind for 13HP Honda GX390
Dyno Cams 275 Grind for 13HP Honda GX390

Dyno Cams 275 Grind for 13HP Honda GX390
Also works on 8HP 301cc Predator

Part Number:275-GX390
Manufacturer's Part Number:Dyno Cams 275-GX390
Availability:In Stock
Location: 0100.03.01, ;
review
4 Review(s)
5/5 stars
Your Price: $140.95
This cam is used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel.

The lobes are welded to increase durability, extending the life of this cam.

Product Specs:
  • Engine: 390cc OHV Clone 13HP or 301cc Predator Engine 8HP
  • Recommended Class: Modified
  • Target (MAX) RPM: 6500
  • Spring Pressure (In / Ex): 32 lbs Single Spring
  • Valve Lash (In/Ex): .003"
  • Ignition Timing:
    93 Octane 28 Deg BTDC
    110 Octane 32 Deg BTDC
    Methanol 36 Deg BTDC
  • Compression Ratio:10.2 to 1


    Grind Number : 275
    Recommended Class: GX-390 Mild Modified

    Valve Timing
    IntakeExhaust
    Open50 BTDC88.5 BBDC
    Close 88 ABDC50.0 ATDC
    Lift.276.276
    C/L108 ATDC110 BTDC
    Valve Lash.003.003
    Check lash when engine is cold

5 Stars
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Reviewed by: on 3/8/2020
5/5
5 Stars
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Reviewed by: on 10/4/2019
5/5
5 Stars
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Reviewed by: on 3/21/2019
5/5
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Reviewed by: on 1/15/2019
5/5

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