HS4 1.5"

Sharp looking allen head screw to fit SU carburetor dashpot and float lid. Non-tarnishing stainless steel will look good for years!

.090 "Fixed" needle, Special tuning "5" for performance applications.

.090 "Fixed" needle, Special Tuning "6" for performance applications.

Fixed SU carb needle, AC code. Used originally on 998 Minis with single HS4 and automatic transmission. May be a good needle for enriching a manual tranny 998 that has had some performance mods.

Fixed .090 AN carb needle for SU HS2 and HS4

Needle, SU Carburetor, fixed, KW code. Believed to be original spec for some twin HS4 ace applications. Sold each.

.090 "Fixed" needle, "M", Std Cooper S with twin HS2.

.090 Fixed Needle for HS2, HS4 or HIF4 SU Carb. "MME"

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb., AAA. Use with 266/276 Camshaft, Std air filter.

.090 floating needle for HS2, HS4 or HIF4 S.U. carburetor; AAB.

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb., AAM. Use with 266/276 Camshaft, K&N air filter.

AAR spring-loaded or swing needle for SU HS2, HS4, or HIF4 carb.

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb. Spring-loaded equivalent of the M needle.

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb. "AAU", Stage one 998.

Spring-loaded APB needle. Standard needle for 1098cc with single HS4 carb, 1975-on.

SU carb needle, biased type. ABY code.

SU service kit for 850cc-1000cc Minis after 1975 using the Waxstat thermostatic jet.

OEM SU Service kit for minor rebuild of single HS4 SU carburetor with plastic jet.

If you need a vacuum take-off, this carb spacer is the trick. Plastic spacer with metal vacuum nipple fits 1.5" H4 or HS4 SUs. Approximately .25" thick.

Used metal carb spacer of approximately .54" thickness as required on some HS4 conversions.

Using the CarbSynch is the fastest and easiest way to synchronize airflow through twin carbs. It is much more accurate than putting a hose in your ear (though not as

Brighten up your engine compartment with these brushed aluminum dashpot covers. These fit HS4 carbs only.

Brand new SU carbs as used on Special Tuning HS4 conversions in the 1960s. Supplied as a pair of carbs only. Use with inlet manifold C-AEG489 and heat shield kit

Metal clip that holds the choke cable to the 12G766 abutment plate.

Dashpot damper with black plastic cap. Fits the top of SU HS2 and HS4 carburetors.

Dashpot spring with 2.5 ounce rate at 2.625" length. Commonly found on performance tuned engines. The lower rate allows it to move up more quickly than with the standard red

Green dashpot spring for any SU HS carburetor. 12oz spring.

Dashpot spring with 4.5 ounce rate at 2.635" length. Commonly found on stock spec units and mildly tuned engines. Small diameter, as found on HS and early HIF series carbs.

SU dashpot spring with 8oz ounce rate. 1” diameter, as used on HS and early HIF-series carbs.

Rubber float chamber adapter for SU HS2 and HS4 Carbs. These are used in twin-carb applications to set the carburetor floats at the proper angle. If you have

Rubber float chamber adapter for SU HS2 and HS4 Carbs. These are used in twin-carb applications to set the carburetor floats at the proper angle. If you have sourced carbs

Float lid gasket for all SU HS side-float carburetors. Fits SU HS2, HS4, & HS6 carb.

High-flow needle and seat valves; diameter is .096", compared to .070" for standard applications. For HS series carbs including HS2 & HS4.

Economical, aftermarket version of the adjustable float for HS2 and HS4 SU Carbretors. Made of a material that is impervious to modern alcohol fuels.

In recent years, the replacement floats for SU carbs were an all-plastic job with no method of adjusting the float valve operation. To make matters worse, many suppliers stocked only

The paper gasket that goes between the carb and the cleaner elbow or pancake filter on HS4 carbs.

HS4 carb to manifold gasket, two-bolt.

Heat shield kit in black for twin HS4 (1.5") carb set.

Heat shield kit in stainless for twin HS4 (1.5") carb set.

Knurled hinge pin for float in HS series carb fuel chamber. These are often worn or damaged from removal, so get one each time you change the float.

New SU HS4 (1.5") single carb to replace original one used at various times on late 850 and 998, 1300cc Minis and Austin America. Diagonal bolt pattern, standard plastic jet.

Special large-bore jet for racing applications. Has .100" bore instead of conventional .090" bore to allow richer mixture. Fits forward or left-hand carb.

Special large-bore jet for racing applications. Has .100" bore instead of conventional .090" bore to allow richer mixture. Fits aft or right-hand carb.

Jet Bearing kit, fixed needle

Jet Bearing kit, Swinging needle

Linkage set for converting a later Waxstat type jet HS4 to the earlier, simpler plastic fixed jet.

Carburetor Jet Locking Spring for HS2 & HS4

Universal linkage kit for twin SU carburetors. Includes throttle cable guide AEG349, throttle and choke linkages, throttle cable trunnion; order throttle return springs separately, AEC2075, two or three required.