Cylinder heads Porsche 356 40/31mm in exchange, spark plugs threads are milled out and welded.
To repair or prevent future cracks.
This is a great possibility to machine them for long thread spark plugs without any additional costs.
Delivery with new valves (40/31mm).
With new valve guides, new valve seats, heads on both sides resurfaced.
Set for one engine = 2 cylinder heads for exchange.
If we need oversize guides for your delivered heads, additional costs possible.
