These Motor mount kit is a 100% bolt- on to make for an easy swap to your Datsun 620 all years. We put the RnD to make the ONLY kit where the SR20 will have a level pan like a in a Nissan Silvia Factory would. You will have to decide how to design a link for your Steering links (SR20 motor will hit your factory Steering arms) We Offer this product as well but is not a bolt on Email us if your interested. The Transmission mount from a Datsun 620 will fit onto the SR20 transmission with very little work require drilling on the Datsun 620 transmission mount. making this swap fun and easy.
We also recommend our