Thorsten Pieper Billet heads 4" bore
-12mm H7 intake guide holes and 13mm H7 exhaust guide holes
-Head bore 110,3mm - standard for 101.6 cylinders (head bore was 108mm at stock for 100mm bore cylinders)
-20mm taller fins at top
-10 main fins
-D style exhaust port
-dual sparkplugs (NGK C8E ja D8EA)
-About 55cc chambers
-WBX headstud 88x83
-Superflo / CB competition eliminator / MS230 intake manifolds fit
-Standard +44mm exhaust header fits
-Recommended valve lenght 112mm to 117mm
-Recommended intake valve 46-50mm
-Recommended exhaust valve 37-40mm
-Stock style valvecovers and standard ratio rockes fit
-Includes Scat Type 4 13mm OD exhaust guides
1660€ / pair + shipping
![](http://img27.imageshack.us/img27/5695/110620135.jpg)
![](http://img29.imageshack.us/img29/5062/20130514191826custom.jpg)
![](https://imageshack.com/a/img924/9601/qUGfLm.jpg)