• Blowsion Cylinder Head Dome
  • Blowsion Cylinder Head Dome
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Blowsion

Blowsion Cylinder Head Dome

Blowsion Cylinder Head Dome

01-03-121

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$49.95 $42.46
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Each cylinder head dome includes a dome locking system that prevents it from spinning when servicing spark plugs. Not all cylinders are the same and compression may vary.
NOTE: All Cylinder Head Domes Are Sold Individually.

  • 82mm domes (701) intended for use with 81.00mm to 83.50mm piston size.
  • 85mm domes (760) intended for use with 84.00mm to 85.50mm piston size.
  • 89mm domes (850) intended for use with 89.00mm to 90.00mm piston size.

701cc Compression Chart

82mm Chamber 701 (61X) No Porting @ Sea Level
(NOTE: Stock 701 Cylinder is 81.00mm)

  • 29cc = 230psi*
  • 31cc = 210psi*
  • 33cc = 195psi*
  • 35cc = 185psi*
  • 37cc = 170psi
  • 39cc = 160psi

* = must use 100+ octane fuel

760cc Compression Chart

85mm Chamber 760 No Porting @ Sea Level
(NOTE: Stock 760 Cylinder is 84.00mm)

  • 32cc = 225psi*
  • 34cc = 215psi*
  • 36cc = 195psi*
  • 38cc = 185psi*
  • 40cc = 170psi

NOTE: These are estimations only. Many factors could change actual compression (port timing, squish, deck height and piston selection).

Liability Disclaimer – Closed Course Use Only

Blowsion products are intended for closed course competition use only. These products are not designed, tested, or approved for use on public waterways or pollution-controlled vehicles.

Installation and operation of Blowsion components may affect the safety, emissions compliance, and legal status of your watercraft. Use of these products on public waterways may be a violation of federal, state, or local laws.

By purchasing and installing Blowsion products, the user assumes all responsibility and risk associated with their use, including but not limited to personal injury, property damage, or legal penalties.

Always follow proper safety procedures and consult with a qualified technician for installation.

Product Installation Disclaimer:

Warning:

When using electric or battery-operated tools inside the hull, ensure the area is well-ventilated and free of fumes. Failure to follow this precaution may result in fire, explosion, serious injury, or death.

Disconnect the battery before performing any installation or maintenance to prevent accidental ignition or electrical shock.

Allow the engine to cool completely before beginning installation.

No Smoking!

This kit is not designed for use on vehicles equipped with pollution control systems. Installing this kit on such vehicles may violate state or local laws

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