Introducing the new BBR Tuning Racing Cylinder High Compression Head! Integrated with larger heat sink fins greatly improves cooling by almost 60%! The Ported and Polished head creates higher compression which in terms means more power.
Fits most china motors (Grubee GT5, PK80, Flying Horse and RAW motors) that have a piston crown size of .060".
This head will not fit the Grubee Super Rat or GT5A in 66/80cc