| Description: |
Free ground UPS shipping in the contiguous United States. Scat sold head with 12mm (that's a small spark plug hole, stock is 14mm for reference) x 3/4" reach (that's a long reach, short is 1/2" for reference) spark plug boss to increase flow in combustion chamber. This head is for 90.5 or 92mm cylinders. 40mm & 37.5mm stainless steel valves with silicon-bronze racing valve guides. Competition 3 angle valve job for a positive seal between valve and seat and to increase flow speed. Combustion chambers are unshrouded for maximum flow and flame travel. High rev polished head. Dual valve springs & chromoly retainers. These are mate ported to Mini D Port manifolds, so if you do not already own a set, see our part# 30240. Allow 7 days to ship, please. |