Which SU Carburettor Parts Fit My Classic Car?

A Quick-Reference Guide by Vehicle

One of the most common questions we get asked is: "Which SU carburettor parts do I need for my car?" The answer depends on the specific carburettor fitted, which can vary even within the same vehicle model depending on the year and engine variant. This guide covers the most popular British classics and the carburettors they were typically fitted with from the factory.

Once you know your carburettor type, our Major Repair Kits and individual components are all catalogued by carburettor type to make finding the right parts straightforward.

Austin-Healey

  • 100-6 and 3000 (Mk I/II): Twin SU H4 (1½ inch bore). Later 3000 Mk III used twin HS4.
  • Sprite Mk I (Frogeye): Single SU H1 (¾ inch bore).
  • Sprite Mk II onwards / Midget: Single or twin HS2 (1¼ inch).

MG

  • MGA 1500/1600: Twin SU H4.
  • MGB (1962–1974): Twin SU HS4 (1½ inch bore). The standard fitment for most B-series engines.
  • MGB (1975–1980): Single or twin Zenith-Stromberg on North American export cars; UK cars retained twin HS4 into the early 1970s then moved to a single HIF44 on later models.
  • MGB GT V8: Twin SU HIF6.
  • Midget 1275cc: Single or twin HS2, later single HIF38.

Triumph

  • Herald / Vitesse 1600: Twin SU HS2.
  • Spitfire (all): Single or twin SU HS2.
  • TR4 / TR4A: Twin SU HS6.
  • TR5 / TR250: Lucas fuel injection (PI) — no SU carburettor.
  • TR6 (non-PI): Twin SU HS6.
  • TR7 / TR8: Single SU HIF44.
  • 2000 / 2500 saloon: Twin SU HS6.
  • Dolomite 1850 / Sprint: Twin SU HS4.

Jaguar

  • XK120 / XK140 / XK150: Twin SU H6 or H8 depending on state of tune.
  • E-Type Series 1 3.8/4.2: Triple SU HD8 (2 inch bore). One of the most iconic SU installations.
  • E-Type Series 2: Twin Stromberg on North American models; triple HD8 retained on most UK cars.
  • XJ6 Series 1: Twin SU HS8 or HD8.

Mini / BMC / British Leyland

  • Mini 848cc / 998cc (early): Single SU HS2 (1¼ inch).
  • Mini Cooper S 970/1071/1275cc: Twin SU HS2.
  • Mini (1976 onwards): Single SU HIF38 (1½ inch / 38mm).
  • Metro 1.0 / 1.3: Single SU HIF38.
  • Allegro 1100/1300: Single SU HS4 or HIF38 depending on year.
  • Princess / Ambassador 1700/2000: Twin SU HIF44.
  • Maxi 1500/1750: Single SU HS4 or HIF44.
  • Marina 1.8: Twin SU HS4.

Rover

  • P6 2000 / 2200: Twin SU HS6.
  • SD1 2300 / 2600: Twin SU HIF44.
  • SD1 3500 V8: Twin SU HIF6 or HIF44 depending on variant and year.

Land Rover

  • Series I/II/IIA/III (petrol 2286cc): Single SU HS6.
  • Range Rover Classic V8 (carburettor models): Twin SU HIF6 or HIF44.

Finding the Right Parts

The table above covers typical original fitments, but it is always worth cross-referencing against the stamp on your actual carburettor (see our guide to identifying your SU carburettor) as carburettors may have been replaced or modified over the years.

Once you have identified your carburettor type, you can browse our full range of genuine Burlen-manufactured service parts:

Not sure which parts you need? Contact us with your carburettor stamp number or vehicle details and we will point you in the right direction.