small section of header wrap around the pipe, Use two Adel clamps(remove silicone on the header pipe side), mount the clamp around the header pipe(on top of header wrap), slip[ the other Adel over the oil hose. Secure together with same bolt. This will provide security and
a stand off so no chaff or contact. You can also use a longer bolt and spacer (tube) to provide more separation between header and hose.
Looky here;
http://www.repucci.com/bill/things/safety%20wire%20adel%20clamp.jpg
http://www.hrpworld.com/index.cfm?form_prod_id=829,24,363_4218&action=product
http://www.hrpworld.com/index.cfm?form_prod_id=837,587_82&action=product