HP Gold Cup Aero Engines
HP .61 Rear Intake Ringed or ABC #99-2204

High Performance HP Gold Cup Rear Intake Aero is a high performance .61.
This Gold Cup series has black Thermex casting treatment to dissipate heat. Originally introduced in the 1980's

Features Schnuerle porting, forged connecting rod bushed at both ends, high pressure castings,
twin needle slide carburetor and precision double ball bearing supported crankshaft.

Ringed or ABC construction • Double ball bearings • Schnuerle porting • Slide Carb with accelerator pump


Engine Weight

17.1 oz


2.2 HP @20,000rpm

Practical RPM

2,000 - 20,000

Prop Shaft Thread


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