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

$95.00

Description

Factory Hilborn rotator spool #57 They all have to be fitted by polishing them in a Drill or on a lathe -GENTLY

This fits all Hilborn barrel (metering) valves most all Known Kinsler and Engler also

#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 #58 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 40-500 cu in or methanol for 1 cyl engines 30-100 cu in

B - #54 Medium to large motor GAS or ALCOHOL this is the universal spool we prefer the 57 spool on almost all GAS engines

C - #61 or 58 Medium to large motor, moderate to 30% percentages of NITRO. Slot width: BIG unblown methanol over 550 cu in

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-SPOOL Hilborn #57 Rotator Spool Small Engines , Gas, Methanol, 40 -300 cu in

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