![Racing Insider's Podcast - Rated Rockers, Thermostat Systems, and Engine Blueprinting Explained Racing Insider's Podcast - Rated Rockers, Thermostat Systems, and Engine Blueprinting Explained](https://cdn11.bigcommerce.com/s-56a35/images/stencil/470x470/uploaded_images/-rip-blog-thumbnail-5-.jpg?t=1673971964)
16th Jan 2023
Racing Insider's Podcast - Rated Rockers, Thermostat Systems, and Engine Blueprinting Explained
QUESTIONS ASKED ON THE SHOWDo you need to re-shim your valve springs every time you change them?You do recommend checking matched springs after every race right? Any update on the new style 604 valve…
Published by CRATE INSIDER