TVR E1291
Dowel cylinder head
Cylinder head dowel to locate cylinder head and gasket on block. This is the dowel that locates the cylinder head on the block of the AJP V8 and Speed 6 engine and also references the head gasket. There are 2 per engine. In the Speed 6 engine the longer cylinder head bolt TVR E6022 10MM should be considered in these positions as the dowel reduces the available thread and hence the 2 dowel locations are the most likely to strip the thread on a rebuild or head gasket replacement. The AJP V8 has 2 per cylinder head so 4 in total.