Prices correct in June 2007.
Normally aspirated, nitrous oxide, supercharged, turbo, unleaded.
Prices based on exchange (surcharge £50).
If your specific requirement is not listed, don't worry these are just popular specs. Superchargers, nitrous, antireversionary emission specials can all be catered for, as can manifolds be flowed to suit your needs from single/twin point through to 48 dcoe, just tell me what you want!
| Name |
Details |
Price |
| 1275cc road spec cylinder head |
perfect for mild applications up to 90 hp, single/twin point injection engines or hif 44 carburetted.
As with all Vmax Scart cylinder heads, the valve guide boss is completely removed from inlet and exhaust ports. It is fully modified to proven flow bench specifications. Using cast guides standard type 'MG'35.7 x 29 mm valves, guide bosses completely removed suitable for unleaded 90+BHP. Costs are kept low but performance is high. Unleaded exhaust inserts are fitted where required. |
£375 |
| road plus head spec |
35.7x29 race valves, bronze guides, 3 angle seats etc. Unleaded, power to suit 90-115bhp |
£430 |
| road plus head spec |
35.7x31 race valves, bronze guides, 3 angle seats etc. Unleaded, suits supercharger application |
£460 |
| rally spec |
suits power in the 125 bhp category (although we have seen 133 on a 1380 with 649 cam) sold by some of our customers as a race head (£550 !!). It is based around the parts of the road plus but with more extensive portwork, modified guides to increase airflow, pushrod sleeved inlets where necessary, Webber carburation and good spec of engine ness. Not really suitable for u/leaded road use. |
£520 |
| Turbo |
35x32 plasma nitrided valves, bronze guides, double springs, based from 28cc chambers, unleaded |
£550 |
Turbos
Its what we made famous in the minis, big road bhp is available, chuck those 29mm valves away!!
| Name |
Details |
Price |
| Everyday 140 |
it can be done an everyday driver capable of this kind of power, bronze guides get the heat away the big exhaust valve 32mm gives the flow, and 8mm stem gives almost 20% more surface area to exchange heat, 33mm inlet is all that you need with 15 psi of intake charge ! Based at 26cc (max 30). |
£400 unleaded + 80 |
| MONSTER |
its all big and offset, 35.7 inlet and 32mm exhaust (8mm stem), roller spring platforms, race level porting and parts, up to 28psi has been used with this spec, make sure the rest is up to it ! based at 30cc (max 35cc). |
£580 |
| Maniolds |
can flowed to suit |
inlet £35 exhaust £45 |
| Turbocharger housings (both) |
|
£50 |
Cylinder Heads for the new MINI
As an addition to cylinder head porting, manifold flowing gives otherwise overlooked gains, and on the 's' supercharger case modifications give respectable gains as to air flow and lower operating temperatures, especially when using aftermarket smaller pulleys to increase boost.
S Efficiency rework, manifold/supercharger £200
Cylinder heads based on the 16 valve 1.6 litre Mercedes owned (embarrassing for the ' BMW mini'? ) Chrysler engine the one, cooper and 's' share the same cylinder head casting.
Compression ratio's can be changed depending on engine spec to give optimum performance, especially 'S'.
Please ask if advice is needed on anything listed, prices are based on customers head casting. Exchange from £100 extra.
In standard form the engine is vastly undervalved, larger diameter race material valves, upped from 23mm to 25mm on the exhaust side balance the inlet to exhaust flow ratios, releasing up to 25 bhp on the cooper/one and more on the "s" - subject to fuel and ignition being revised.
When buying a head from us, tell us as much information as you can regarding: cam choice, deck heights, fuel, rules for compliance if necessary, inlet and exhaust systems and its use.
Even if you don't buy a head from us, here are some pointers to make sure your money has gone into the head and not someone's pocket!!
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