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Colt Cams Stage 3 Billet camshaft for ALH

Was: $419.00
Sale: $369.00
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Colt Cams Stage 3 Billet For ALH engines

New from European Chill Cast Billet ...the finest metallurgy, cam design, and surface hardening treatments

5 Year / Unlimited Mileage Warranty when ordered with lifters (What we are saying here: this is the last cam you will ever have to buy!)

Here are a few words about how a stock camshaft profile can be modified to improve the engine's efficiency and performance. Please note, our Colt cams are not reground factory takeout cams. All our Colt Cams are made brand new from fresh steel blanks and ground to a shape that simply can't be achieved when regrinding a TDI factory original cam. That's why we can confidently offer such a crazy warranty.

In this image you can see the effects that a worn camshaft has on lift, if it is worn by 0.020" then it will have that much less total lift. To calculate the lift you measure the width of the lobe and subtract that from the height. By removing that same 0.020" from the entire perimeter of the lobe, keeping the same centerline, the entire lobe is smaller but the effective lift is restored to 0.400". That 0.020" now can be made up with the extra preload the factory gives hydraulic lifters, or on a solid lifter valvetrain you just reset your clearances.

This can also be done on camshafts that are not worn out, to achieve more lift for a performance application by removing a greater amount from the base circle.
Keep in mind the tip of the lobe cannot exceed the height of the bearing journal on cams that slide through the block or head. So even when grinding blank billets to performance, the base circle quite often is smaller than stock. On cradle type bearing caps we still need to be cautious of too much lift and stock base circle for clearance reasons.


Note: Most oil companies have taken out a percentage of additives that are meant for anti-scuffing for break in on flat tappet cams, kermaTDI supplies the best zinc additive with the Colt Cam



Here are the steps to check install the Colt Stage 3 cam. Having two people helped a lot to make the process more efficient and quickened the job altogether.


First, remove the original cam shaft and hydraulic lifter cups. Once these are out, use Brake Kleen and a shop vac nozzle, to clean out excess oil so aluminum shavings left behind by the grinding later on don't stick to the head. Next, while the lifter cups are out, rotate the new cam shaft in to the head to check clearance, but do not install bearing caps yet. 

Make marks on the head to indicate where you'll need to grind for clearance. Making the marks with a marker not only shows where to grind, but will help you know when to stop grinding (when the black marks are gone, you should be able to stop).


At this point use a dye grinder with an aluminum carbide bit to grind. I prefer the 6 inch long bit. Keep using the shop vac (holding it as close to the grinder as you can) to catch aluminum shavings as you grind (this is where having two people to do the job is helpful). 

When satisfied with clearance, spray more Brake Kleen while continuing to hold the vacuum nozzle close to cause a flushing action to dispose of any left over shavings (a simultaneous spray/vacuum process sweeps away shavings most effectively--experimenting with this process during the initial cleaning process will give you a better feel for it when cleaning out the shavings later on when it's most crucial). Inside hydraulic lifter cups is the critical area where shavings should not be left behind. After the head has been thoroughly cleaned, install new cam and lifter cups.


  • Cam Lube on all lobes, lifter faces, distributor gears and oil pump gears.
  • Oil all bearing journals and lifter barrels.
  • Always turn engine over by hand before starting, check for clearances and proper timing location.
  • Fire up to 1800 - 2000 r.p.m. for 18 - 20 minutes.

Note: Most oil companies have taken out a percentage of additives that are meant for anti-scuffing for break in on flat tappet cams, so please ask your local auto parts professional for the best zinc additive they have and add it to your oil before you fire-up your engine for the first time.







kermaTDI is the exclusive distributor for Genuine Colt Cams new from billet and also Colt Cam cam regrinds. Please beware, as the TDI market has become flooded with substandard and counterfeit products.


There are many so called Performance Camshafts available in the market today at half the price of a Chilled Cast Performance Camshaft.

Most camshafts are not designed to handle the stress that is applied in a VW TDI and therefore can cause premature failureto the cam lobe areas.

STK Billet CamshaftsWhat is CHILLED CAST?
When the camshaft is cast in the foundry, the iron is poured and hardens off very quickly (known as Chilling) this causes the material to form a matrix of carbide on the cam lobe.

Chilled Cast material is exceedingly scuff-resistant and is the industry standard material for producing Quality OHC PerformanceCams.


Note: VW PD engines [like BEW, BHW, BRM , PD130, PD150] require a special cam made a fully machined from bar stock steel billet which kermaTDI also carries We are the exclusive supplier of these ultimate forged billet PD cams.



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  • Colt Cams
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Shipping Information

  • Item Requires Shipping
  • 8.0 lbs.
  • W4.0000” x H4.0000” x L15.0000”
  • Free Ground or Postal Service Shipping to the Continental U.S.