Classic Austin Mini Cylinder Head 1.4 Intake Valve , And 1.21 Exhaust Valve

Classic Austin Mini Cylinder Head 1.4 Intake Valve , And 1.21 Exhaust Valve

Classic Austin Mini Cylinder Head 1.4 Intake Valve , And 1.21 Exhaust Valve
Qty:
$1849.95
Part No: MSE5
Internet Price $1849.95
 35.7 x 29.5mm race valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides.Nominal 21.4cc with by pass and heater take off holes open.

This specification of cylinder head, based on used core castings, is modified to current road-sports style to maximise road-sports and track day/weekend-warrior performance when used with road-sports and super-sports camshaft specifications. That means optimised BHP and torque out-put through port shape and dimensions and valve throat shapes developed on airflow bench and dyno/rolling roads to work with the aforementioned camshaft types, along with suitable compression ratios given modern lead-free fuel specifications. Special Serdi lead-free exhaust seat inserts are fitted to accommodate the larger exhaust valve size. Latest specification manganese-bronze valve guides are used along with the latest specification plasma-nitrided EN214N stainless steel (35.7mm inlet and 31mm exhaust) and 220lb (nominal at maximum valve lift) double valve springs to give a cylinder head capable of withstanding a maximum continual peak rpm limit of 8,000rpm and 0.500" actual valve lift. Suitable for auto-testing, hill-climbs, track day and entry-level club racer use. Combustion chambers are set at an average 21.4cc since most engines these will be used for will already be using an elevated compression ratio (CR) through either smaller capacity dished pistons and/or larger bore capacities, and their efficiency will boost dynamic CR considerably. 9-stud fitting as standard. This head has the heater take-off port open and a by-pass hose adapter fitted, either or both can be blanked off as required.
Recommended items for: MSE5
Loading...
Loading...
Loading...
Related Technical Articles:
Classic Mini Cooper Cylinder Heads- High performance & Stock -28
Created: January 03, 2019
Road Sport and high performance race Cylinder heads are options when upgrading your engine. We offer both cast iron and alloy heads for street and race. Technical Information & guidance is available by live chat, phone or e-mail.
Why It's Important To Identify Your Classic Mini Cylinder Heads
Created: January 30, 2000
Everybody has their own opinion on this subject. The most experienced people will tell you that the best way to maintain your engine performance is to accept the fact that valve jobs need to be done 2 or 3 times more often than rings and bearings! And this data base was concluded when leaded gas was the norm! Now that unleaded is all you can get, valve jobs are needed even more often! The purpose of a valve job is two fold; first the valve seats. The impurities in the air and gas often get trapped between the valve and the seat in the head; under worst conditions stopping the valve from closing, but more commonly being smashed enough to allow just a little seepage of hot gases.
Loading...
Loading...
Loading...
Recently Viewed Items