Billet Cylinder head 993 (M6421/22) Without Valves

Description

Cylinder heads for your Porsche 993 are only available used (reconditioned, exchange). Not with us. We deliver cylinder heads including valve guides and seats incorporated, everything like the original. The original valves and other attachments (stud bolts, etc.) are used again. No adjustment necessary to use our cylinder heads.

Our cylinder heads are milled from a solid, high-strength and thermally insensitive aluminum alloy. This was preceded by a flow analysis to get the best result. This analysis must be carried out with a special high-performance computer program (CVD). The results are up to 10% more power (+ 10% more air flow) in contrast to the OE cylinder heads.

Technical note:
Measure the pinch edges when assembling the cylinder heads and housings.

The overall height of our cylinder heads (not the combustion chamber) is 0.5mm higher than OE. This means that our cylinder heads can be reworked several times.

The valve noses of our cylinder heads are reinforced (wider on the sides) and the flow nose is milled thicker. Increases efficiency.

"Custom-made products" can also be produced for motorsport customers. Almost everything is possible here, about the processing of the channels, Ø cylinder head at the outlet, etc. Ask us if you have any questions or requests.

Sold individually.