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5.9L/6.7L Cummins Hamilton Towing/Efficiency 178/208 Camshaft

89+ 5.9L/6.7L Cummins Hamilton Towing/Efficiency 178/208 Camshaft


 

 

$599.00

07-c-178-208
+

This cam is the most efficient cam Hamilton has from just off idle to 2500 rpm.
In engines, there is always a trade off for different performance parts.
On a truck with a 62mm turbo and 80hp injectors, this cam picked up 40hp at 1700rpm due to the fact that it moves so much air at lower rpms and helps the turbo spool much sooner. The trade off?
It gives up power compared to our larger cams above 2600 rpm.

If you live at high altitudes, tow heavy or are looking for the best efficiency possible for highway driving and you don't use above 2600rpm often, this cam will help you considerably.

Install with the intake from a 97-99 centerline, use with small or OEM injectors and turbos.

We now offer tappets at a reduced price when purchased with a cam shaft, select option above.

Towing/Efficiency 178/208
INT: .290" Lift
EXH: .320" Lift
109 LSA

This is generally a drop in cam. If your head or block has been decked it is your responsibility to check your valve-piston clearance.  

Hamilton Cams Feature:

  • 1.020” wide lobes (widest in the aftermarket)
  • Thicker core
  • Radiused core
  • Every cam is drilled and tapped for a bolt on retainer
  • The ONLY improved design cast cam on the market

Shop around and ask others how wide their lobes are. If they say their cam is made just for them, ask them if their name is cast into the cam. I bet you it isn’t!

We are here to get you the absolute best cam for your specific truck, the first time. 

Keep in mind that some Cummins cam gears have slightly different offsets built in. We suggest you inspect your tappet for wear. If they are worn either get them reground, or get new ones.
If you are installing this cam in a 12 Valve, please replace the factory tappets with tappets from a 1998.5-2002 24 valve for best longevity with low zinc oils.
On engines seeing over 50psi or over 500hp we also suggest Hamilton heavy duty pushrods.

Follow Cummins installation instructions, use adequate assembly lube, and add some of our zinc additive prior to startup, to ensure no break in damage due to the new low zinc oils on the market. Always keep the engine from starting until you visually verify that oil has made it all the way to the rocker arms.

To modify installed centerline, use Mopar performance offset keys part# p4349650. This offset key kit comes with 1°, 2°,3°,4° and 5° offset keys. Just remember 1° camshaft is 2° crankshaft since the crankshaft moves twice the speed of the cam. A basic degree wheel from Jegs or Summit, a small amount of wire and a dial indicator is all that is needed to degree a cam in.

Factory specifications for comparison:24V Stock:

INT: 159° .235” Lift
EX: 206° .297” Lift
107.5 LDA

24V 3rd gen:
INT: 163° .237” Lift
EX: 191° .299” Lift
98.5 LDA

110LB Springs are REQUIRED for 98.5+ Trucks running this cam or any cam with more than 300 lift or if you are running an aftermarket turbo with 40PSI boost or more.

We REQUIRE purchasing a bottle of Zinc Additive with every Hamilton cam purchase.

Hamilton Cams are all Pre-Drilled for a cam gear bolt-on retainer. We recommend this option for 89-02 trucks.
Select option above to add a retainer.

Please review the cam shaft installation guide- CLICK HERE.

Cam retainers are NOT to be used with 2003+ 5.9L & 6.7L Cummins engines unless your front cover has been modified for proper clearance.

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