SKU: AD-57
Hilborn #57 Rotator Spool Small Engines , Gas, Methanol, 40 -300 cu in

$69.00

Description

Factory Hilborn rotator spool #57

This fits all Hilborn barrel (metering) valves

#57 spool .100" wide ramp Great for GAS engines - helps plug fouling

For small engines like 1 cylinder and motorcycles - Alky or Gas ok. ( not for Big Harley engines - use a #54 for alky or #56 for blown alky )

Non-turbo
Non-blown

These rotors are for the standard Hilborn metering valve. O-ring included. Choose from:

A - #57 Small motor on GAS 40-100 cu in or methanol for 1 cyl engines up to 350 cu in on GAS

B - #54 Medium to large motor GAS or ALCOHOL

C - #61 or 58 Medium to large motor, moderate to 30% percentages of NITRO. Slot width:

A = .100"

B = .187"

C = .312"

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Thumbnail Filmstrip of Hilborn #57 Rotator Spool SMALL ENGINES & on GAS V8 on GAS unblown Images

SKU: AD-57 Hilborn #57 Rotator Spool Small Engines , Gas, Methanol, 40 -300 cu in

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SKU: AD-57
Hilborn #57 Rotator Spool Small Engines , Gas, Methanol, 40 -300 cu in