Aussiespeed phenolic / bakerlite 6mm heat shield spacer to suit Ford 250 4.1 alloy head Crossflow . These have been used on many speedway cars, street stocks, drag cars & street cars, stop cylinder head heat transfering heat to your inlet manifold & rob you of horse power these cnc machined spacers are 6mm thick & are made in Australia from a quality grade of material.Model # AS0250 Other items not included in sale and are also manufactured by Aussiespeed We also have 2 barrel Holley 6mm heat shields, 250 2v inlets heat soak spacers Ford OHC 4L EA TO AU Heat shields Available We Ship Worldwide & do combine shipping on multiple items. PAYMENT IN 7 DAYS NO EXCUSES Please contact us within 24 hours to advise on payment method.Payment within 7 days if you require extra time or want to do a lay buy please contact us first