Press fit wrist pins vs floating. Floating pins, you can assemble yourself. Pressing requires equipment that floating pins do not,” explains Alan Stevenson. Press pins, the rod has to heated so that the pins can be pressed into the piston/rod and centered. Apr 9, 2006 · If your building the engine yourself and don't want to bother with the machine shop, get floating pins. Oct 12, 2008 · All wrist pins "float" in the pistons, the "press" or "float" option applies to the rod fit. Feb 20, 2015 · With press fit rods, you have to control the temperature or you can overheat the rod and make it weaker. For "full floating" pins the pistons need to be cut for retainer clips and the rods need an oil hole drilled in the tip of the small end. Aug 25, 2006 · Floating pins allow the piston to move more freely, reducing friction losses, but they can also contribute to piston "slap" against the cylinder walls. If you use floating pins, you have to worry about a missing/loose clip. . Jan 20, 2011 · In my opinion under high loads and/or speeds the floated pins in the rods add the capability of the pin moving in the rod, and possibly avoiding galling in the pin bores if the piston is distorting a bit. Jun 30, 2012 · So, the question is, what are the advantages and disadvantages of press-fit versus floating pins, and which do you recommend for a 302 that will mostly be street-driven (with a heavy foot!)? “Press- fit pins require the rod to be heated, which is bad for the rod material from a heat-treat standpoint. To combat this, I went with teflon coated, full-skirt forged pistons. abocf zpyg dft lnj uqlmy ycxrlh zcw zlxo ass sohw