SG Moto Engineering

SG Moto Engineering Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from SG Moto Engineering, Engineering service, St. Neots, Cambridge.

Machining 3 angle valve seats, valves refaced, cylinder head and block skimming, unleaded valve seats fitted, porting & reconditioning of A series Mini, Mg, Austin, Morris, Triumph Spitfire cylinder heads, piston crowns machined to size.

Nice run out in the mini van, fantastic classic car meet at the Pike & eel pub, nice friendly bunch of people.Thank you ...
31/05/2026

Nice run out in the mini van, fantastic classic car meet at the Pike & eel pub, nice friendly bunch of people.
Thank you to everyone who made us feel welcome.

Fast road, 12g940 completed Head,New unleaded seats fitted.New Big inlets & exhaust valves.New tapered valve guides.New ...
22/05/2026

Fast road, 12g940 completed Head,
New unleaded seats fitted.
New Big inlets & exhaust valves.
New tapered valve guides.
New stem seals.
New double valve springs.
Three angle valve seats.
Skimmed all three sides.
Combustion chambers polished.
Inlet & exhaust ports ported.
These make a lovely fast road cylinder head.
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Stage 3 fast rd spec, Nice Cooper s finished ready for collecting.12g940 casting, flat top, unleaded.New large inlet val...
16/05/2026

Stage 3 fast rd spec, Nice Cooper s finished ready for collecting.
12g940 casting, flat top, unleaded.
New large inlet valves.
New exhaust valves.
New tapered guides & seals.
New double valve springs.
New manifold studs & nuts.
3 angle valve seat cut.
Skimmed all three sides.
Combustion chambers, polished.
Inlet & exhaust ports ported.
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Mg MG Midget, ready for ”Spar”Race spec ready for fitting.New race spec inlet & exhaust valves.New double valve springs....
10/05/2026

Mg MG Midget, ready for ”Spar”
Race spec ready for fitting.
New race spec inlet & exhaust valves.
New double valve springs.
New tapered bronze guides.
New Viton stem seals.
New manifold studs & nuts
Skimmed all 3 sides.
3 angle valve seats.
Polished combustion chambers,
Valve bosses smoothed.
Inlet and exhaust ports, ported.
, , , , , &spritechallenge,

Something different today.A Vauxhall Cavalier Aluminium 2.0ltr 16v, head for a little skimming. , , ,
02/05/2026

Something different today.
A Vauxhall Cavalier Aluminium 2.0ltr 16v, head for a little skimming.
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Mg 1500 Pistons Machined to correct size ready for collection in the morning. , , , , , , ,
30/04/2026

Mg 1500 Pistons Machined to correct size ready for collection in the morning.
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For sale.Stage 3, Big Valve, 1275, Unleaded Cylinder head,12g940 casting.Featuring new.New inlet valves 35.6mm.New exhau...
29/04/2026

For sale.
Stage 3, Big Valve, 1275, Unleaded Cylinder head,12g940 casting.
Featuring new.
New inlet valves 35.6mm.
New exhaust valves 29.3mm.
New double valve springs.
New tapered guides and stem seals.
New manifold studs and brass nuts.
New heater take off studs.
New thermostat housing studs.
New temperature sender.
Bypass can be plugged or tail fitted.
Valve seats cut 3 angle for improved flow.
Combustion chambers 21cc and polished.
Valve bosses and throats smoothed.
Inlet and exhaust ports, ported.
Skimmed all three sides.
Exchange.
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Ready for its customer.Before and after pictures12g940, Big Valve, for a Mg Midget.Race spec valves.Bronze valve guides....
24/04/2026

Ready for its customer.
Before and after pictures
12g940, Big Valve, for a Mg Midget.
Race spec valves.
Bronze valve guides.
Large ports.
Skimmed all three sides.
3 angle valve seats.
, , , , , , , &spritechallenge

Just completed.Mg Metro Turbo head ready to fit.Race spec valves.Bronze valve guides.New stem seals.three angle valve se...
17/04/2026

Just completed.
Mg Metro Turbo head ready to fit.
Race spec valves.
Bronze valve guides.
New stem seals.
three angle valve seats.
Ported inlet and exhaust ports.
New double valve springs.
New manifold studs.
Unleaded ready to fit.
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Many thanks to all you guys that have trusted SG MOTO ENGINEERING, to work on your cylinder heads.Giving us feed back an...
05/04/2026

Many thanks to all you guys that have trusted SG MOTO ENGINEERING, to work on your cylinder heads.
Giving us feed back and sharing information helps us massively to improve in what we do.
Here is a some more Dyno results from one of our customers.
133 BHP and 121 ftLb of torque,
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Address

St. Neots
Cambridge
PE196QN

Telephone

+447786134476

Website

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