Integrated Engineering HoldStrong Head Studs Breather Rebuild Kits Outside Length/Base Outside Diameter (mm):

Outside Length/Base Outside Diameter (mm): 180

This can always be changed using an 8AN ORB fitting

Once the manifold has been designed and flow has been optimized

There are less bends to improve exhaust gas flow and reduce back pressure

Integrated Engineering HoldStrong Head Studs Breather Rebuild Kits Outside Length/Base Outside Diameter (mm):KEEP IT TOGETHER Meet your ultimate defense against head lift. iE HoldStrong Head Studs are engineered and manufactured for structural integrity to go toe to toe with the demands of high output engines. Theyre made to keep your engine together and sealed tight using a rolled thread process, chromium based H11 tool steel and aircraft grade J threads for maximum strength. CHROMIUM H11 TOOL STEEL Its not rocket science, but its close. Our chromium based