5.4 SOHC/Lightning/F150/Expedition MMR Race Spec Chain Guides PN#542295
Constructed of Billet Aluminum vs the stock weak plastic, eliminates timing variation under high RPM and load. Reduces 2-3 degrees of forward/aft movement at the pivot. Works with all other factory and aftermarket components. Lifetime warranty against breakage. Red Anodized for wear and corrosion resistance. No more broken guides on performance applications!! Recommended for all 6000+ RPM applications Fits all 5.4 blocks (iron and alloy).
http://www.modularmotorsportsracing...ge=product_info&cPath=4_5_50&products_id=1053
Also take a look at the new MMR tensioners:
Constructed of Billet Aluminum vs the stock weak plastic, eliminates timing variation under high RPM and load. Reduces 2-3 degrees of forward/aft movement at the pivot. Works with all other factory and aftermarket components. Lifetime warranty against breakage. Red Anodized for wear and corrosion resistance. No more broken guides on performance applications!! Recommended for all 6000+ RPM applications Fits all 5.4 blocks (iron and alloy).
http://www.modularmotorsportsracing...ge=product_info&cPath=4_5_50&products_id=1053
Also take a look at the new MMR tensioners:
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