P90 cylinder head, & O5L cylinder head. Unmolested virgins.

[dat2kman]

Both are at original height, valves fitted, camshaft that belongs with each are fitted.

( so that seats are protected and valves arent left open only to get bent!)

We all onow the specs and the superior flow characteristics of the P90.

 

The O5L has tje same shed ports as the P90, but slightly smaller ( high velocity atomisation benefit)

The combustion chambers CC at 37

This head on a 2.8 or larher will give very high compression figures at 37cc as it is.

To increase flow, the ports need opening up, fit larger valves,  unshrouding work etc, would increase the cc of the chamber by 2-3 cc's.

 

See pictures and other info in the Engine section, Cylinder heads guide.

$600 ea.