Alloy Cylinder Head, bare
WARNING: May contain chemicals that may cause cancer or reproductive harm.
These light-weight (9 lbs.) high strength aluminum alloy cylinder heads run cooler, allow higher compression ratios, and have a greater than 35% increase in flow rate over stock heads. Heads come with silicon-bronze valve guides and hardened valve seats. These require 1275 valves, springs, and retainers, 12mm spark plugs(our 451-890 NGK plugs are recommended), all of which must be purchased separately. These heads do not have air injection ports, and therefore should not be used for street use on cars originally fitted with air pumps.
Compatible with: Exhaust Valve 423-335, Intake Valve 423-190, Upper Valve Spring Collars 460-556, Valve Spring Cotters 460-535, Double Valve Spring Set 423-470
Fitting the head to smaller bore engines will require machining of the block to ensure adequate valve to block clearance.
Requires coarse thread manifold studs 328-765 x 6
Note: The rocker oil feed design requires that if a Payen composite head gasket with rubber oil seal is used, the gasket must be reversed. "FRONT" should be to the back of the engine so that the original type copper oil passage seal is over the oil feed passage.
Documents
| Model (Site) | Category | Schematic | Key | Name | Application | Qty |
|---|---|---|---|---|---|---|
| MG Midget, Austin Healey Sprite | Cylinder Head | Cylinder Head 948, 1098, 1275 | 1 | CYLINDER HEAD | 1275 | 1 |
| Classic Mini | Cylinder Head | Cylinder Head | 1 | CYLINDER HEAD | 1275cc | 1 |
The Longest in the Business
- All Classic British products are warrantied to be free from defects in material and workmanship for 2 years from the date of invoice.
- All superchargers, supercharger components, and supercharger hardware are warranted to be free from defects in material and workmanship for 1 year from date of invoice.
- Moss Motors, Ltd. will, at its discretion, repair or replace any part that fails in service within the warranty period. This warranty does not cover labor, failure of related components, normal wear of brake or clutch components or failure resulting from alteration, misuse, accidental damage, faulty installation, or faulty repair.
- Warranty requests should be submitted to our sales department and must be supported by the original Moss Motors purchase invoice and documentation of the failure.