The 13b 1-piece hollow dowel pin originally made and sold by Rob Golden of pineapple racing. We at SRRP are continuing to produce the 1-piece hollow dowel pin which is meticulously machined from the same super strong superior materials as pineapple racing.
This engine upgrade requires NO MACHINE work and NO external oil modifications and replaces the 2-oem upper dowel pins.
This upgrade works best and has the most strength for your valuable engine that requires NO MACHINE work when paired with 1 solid dowel pin that replaces the 2-oem lower dowels which are also available.
