MG Midget and Sprite Challenge CLASS D 1380 Racing Engine - SHORT ENGINE
If you are looking to compete (or looking to be more competitive) in the Swinging Sixties (CSCC), MG Midget Challenge, Healey Sport or any of the FIA disciplines, please contact us and let us discuss.1275 MG Midget / Healey Sprite Short Engine, built to MG Midget and Sprite Challenge Class D specification. Fully balanced and lightened bottom end including, Balanced STD Midget Rods, Competition Flywheel, Helix AutoSport Clutch. Fully dialed in timing with Vernier Timing Belt System. Piper Race Camshaft. Built using ARP Con Rod Bolts
Midget and Sprite Challenge CLASS D Specification
It is built to the specifications below.
Our 2025 Class D spec engine has shown figures of 144bhp and 126lbft over winter testing!
THIS IS FOR THE SHORT ENGINE ONLY!
- Selected 1275 Engine Block - 11 Stud Conversion, Crank Shaft, Con Rods.
- Chemically cleaned, Thoroughly checked, and inspected.
- Machined to include, Boring 73.5mm (1380) Speak to us with your requirements for CC for your race series.
- New Cam bearings, Skimmed fire face, 11 Stud Conversion.
- Block-Face water galleries plugged to FIA Spec.
- Machined Centre Main - Centre Strap.
- SH Engineering Rear Oil Seal Kit
- New Core Plugs (Water and Oil)
- Balanced, Lightened, Knife-Edged / Wedged and Machined crank - Balanced to Rods, Front Pulley, Clutch and Flywheel
- Balanced STD Midget Rods with ARP Bolts
- Steel Flywheel
- Helix Autosport 7.5" Clutch
- New Race Main Bearing Shells.
- New Thrust Washers, Shimmed correctly.
- New Race Big End Bearing Shells.
- OMEGA Forged Race Pistons
- Vernier Timing Belt Kit Fitted and Shimmed with Crank correctly.
- Piper Race Camshaft - Speak to us about your requirements.
- Timed Correctly.
- New Large Impeller Water Pump
- Distributor Drive Fitted.
- New iSKY Cam Followers
- Oil Pressure Relief Valve Fitted.
- Crank Machined for Rear Oil Seal Conversion. Alloy Backplate with Rear seal, Fitted.
Shipping and Surcharge
If you decide to have this item delivered, it is delivered to you in a wooden crate, which can be used to send us your exchange unit, we will then refund the crate price. There is a £450 surcharge added if you do not have a core unit to exchange.
Shipping Crates are charged for, this is refunded on return to us along with any surcharges if you return a core unit to us.








