Valvetrain/Cams

Never drop a valve again with these upgraded valve locks. Premium material and quality make this a part that should be on every list when completing...

Includes 4 wear strips to fit both factory and MMR Billet chain guides. Great for rebuilding those older 4.6 DOHC applications that are now 13-20...

4V DOHC Cylinder Head Rebuild Kit This rebuild kit is perfect for those 10 year old heads on your ride. Get rid of the ticking, knocking and smoking...

Manley Titanium Spring Retainers for ALL 4V Cobra / DOHC A great way to save valvetrain weight allowing higher rpm (set of 32) As used by Team MMR up...

Constructed of Billet Aluminum vs the stock plastic, eliminates timing variation under high RPM and load. Reduces 6 degrees of forward/aft movement...

Comp Cams Stage Billet camshafts & Great performance gains and Comp cams go hand in hand, stage 1 cams can use factory springs, stage 2 and...

Brand new factory Ford Roller Followers 4 Valve kit includes 32 Fits all 4.6 / 5.4 DOHC Applications from 1996-2004

Manley Titanium Spring Retainers for Stock GT 500 / Ford GT supercar springs This special kit made by Manley exclusively for MMR is a direct fit with...

Manley High Performance 4V spring kit (does not fit GT500) Recommended for all Forced induction applications and aftermarket camshafts, compatible...

MMR Custom 4V TURBO CAMSHAFTS No other Company has the History of Turbo Charging Modular Engines than MMR MMR has 3 stages of Custom Turbo Grinds to...

MMR Billet Passenger side DOHC Secondary tensioner and Heavy Duty Secondary chain kit. It has long been known that the factory passenger side...

MMR Billet Passenger side DOHC Secondary Tensioner (96-2014 DOHC) It has been long known that the factory passenger side secondary tensioners on ALL...