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Discussion Starter #1 (Edited)
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.

No more broken Factory PLASTIC guides!! Recommended for all applications and ALL forced induction applications!! Fits all 5.4 and V10 blocks.






*Includes both Pivoting and Fixed chain guides
*Constructed of Billet Aluminum vs the stock weak/brittle 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.
*Red Anodized for corrosion resistance
*Replaceable wear strips
*Lifetime warranty against breakage.
*WEAR Strips INCLUDED

Fits:
F150
F250
F350
Expedition
E150 Van
E250 Van
V10 Triton F250
V10 Triton F350

Order here: http://www.modularmotorsportsracing...ge=product_info&cPath=4_5_50&products_id=1053

 

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16,644 Posts
Those are too pretty to cover up! :D Got any 'scratch and dent' sets laying around?
 

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how do these differ from the 4.6 ? Ive been running the 4.6 MMR ones on my 5.4 harley truck for years now with trickflow 44R heads and custom bullet cams. Is there a risk of something Im hurting?
 
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