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Dyno Cams Steel Billet Core 275 Grind
Dyno Cams Steel Billet Core 275 Grind

Dyno Cams Steel Billet Core 275 Grind
for Honda GX390, 13HP Clone Engines

Part Number:275-GX390-TSB
Manufacturer's Part Number:Dyno Cams 275-GX390-TSB
Availability:In Stock
Location: 0100.03.01, ;
review
7 Review(s)
5/5 stars
Your Price: $196.95
Tool Steel Billet cores are the best choice in high RPM applications.

This cam is used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel.

The two piece design of the Tool Steel Billet core allows you to advance or retard the cam to meet your application needs.

Product Specs:
  • Engine: 390cc OHV Clone 13HP
  • 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

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Reviewed by:  on 12/6/2023
5/5
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Reviewed by:  on 4/9/2023
5/5
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Reviewed by:  on 5/20/2022
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Reviewed by:  on 6/17/2020
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Reviewed by:  on 12/13/2019
5/5

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