The Sneed Super Cooper series of cylinder heads is our premier fully assembled MINI Cooper cylinder head. Each head is cleaned, checked and then built into a Super Cooper Street, Sport or Super head by our inhouse engine machinist.
Super Cooper Street - (Stock replacment) heads are fully rebuilt to better than OEM specs with OEM parts. They are milled and trued to .0001 of an inch on the engine sealing surface and then receive a high flow valve job and valve facing as well as setting the valve spring seat pressures for best performance. This is a great stock replacment head, built by the leading MINI race parts manufacturer, with a few race touches.
Super Cooper Sport, heads receive all the above plus a Sneed high performance cam and new high performance valve springs. If you're tracking your MINI on a budget, this is the head for you. Direct, bolt on replacment for the stock head with a 15-20 horse power increase over the stock unit with ECU tuning, REV limiter can be increased to 8000rpm. No ECU tuning required.
Super Cooper Race, heads receive everything above, cleaned valve bowls, swirl porting and polishing, a Sneed high performance cam, 1.5mm oversized super alloy valves, and race valve springs with titanium retainers that are 45% lighter than OEM retainers. All this creates a head that makes big power, handles high boost levels and revs past 10,000 RPM without valve float. ECU tuning is required.
There is a 500.00 core charge on all heads. If you are returning your head before we ship your new head pick the Returning core before new head is shipped option with the head you want. You will not have to pay a core charge.
If you will be sending your head back after you receive your new head pick the Not returning core before new head is shipped option with the head you want. You will have to pay a core charge. Once your head is returned to us and passes inspection we will refund the core charge on the same day. Inspection can take up to 14 days. We need your core back! Good cores must not be damaged or cracked and must include all parts and pieces but do not have to be assembled when we receive them. If your head is cracked and warpped beyond repair you will have to pay the core charge. We DO NOT expect heads that are cracked, melted or incomplete. We DO NOT expect core returns for credit after 45 days after head ship date. Normally we have heads in stock and ready to ship.