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Introducing the new Hamilton Diesel/Colt Cam collection of Camshafts for the Cummins 5.9L B Series Engine. Colt Cams Inc. has been working closely with Hamilton Diesel to develop some pretty fantastic camshafts. Zach Hamilton has dyno tested approx. 50 different combinations of profiles using different durations, lobe separation and installed centerlines. The end result is the masterpiece nicknamed the "Big Stick". Posted below are the specs for both the stock and their performance grinds but this just scratches the surface of the cam's characteristics. Ramp velocity and accleration play a key part in how a cam performs. Cummins run a mushroom type lifter that allows us a ramp speed that most valvetrains could not handle. These new profiles were meant for driveability. The "Big Stick" is usually big enough for even the toughest truck bogs and pulls. However, there is no compromise to the driveability: in fact we have seen an average of 2-3 mpg increase, 30-35% smoke decrease and a 200° EGT drop. All our cams are ground with an installed Center Line to Clear Valve to Piston (Always check this especially if you have decked the block)
Follow Cummins installation instructions, use adequate amounts of assembly lube and add GM Engine Oil Supplement (EOS) or Kirban performance ZDDP plus to ensure no break-in damage due to the new low zinc oils on the market.
BREAK IN PROCEDURE
- 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 rpm. 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. Always add a bottle of EOS (Engine Oil Supplement) to your oil before fire up on new engines. For Marine style cam - loctite and torque bolt to 80Ft/lb
Stage 1 - High-Torque Bottom End; Fuel Economy Cam
$400.00 Core Charge does apply. Also required with this Cam are new or reground lifters. |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Stage 1 |
Intake 175° |
0.251 |
103 |
Stage 1 - High-Torque Bottom End; Fuel Economy Cam
$315.00 |
| Exhaust 206° |
0.297 |
Stage 2 - New Torquer Cam - Better Exhaust Flow
New Torquer Cam - Better Exhaust Flow - $400.00 Core Charge does apply. Also required with this Cam are new or reground lifters |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Stage 2 |
Intake 175° |
0.251 |
104 |
New Torquer Cam (Better exhuast flow)
$341.00 |
| Exhaust 210° |
0.307 |
Stage 3 - H.D. "Big Stick" Best All Around Power Camshaft
$400.00 Core Charge does apply. Also required with this Cam are new or reground lifters |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Stage 3 |
Intake 181° |
0.280 |
106 |
H.D. "Big Stick" Best All Around Power Camshaft
$393.00 |
| Exhaust 210° |
0.307 |
Billet* Stage 1 - High-Torque Bottom End Fuel Economy Cam
All Billet Camshafts are fillet radiused on #1 cylinder, all lobe edges radiused, snout tapped for 7/16" retainer |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Billet* Stage 1 |
Intake 175° |
0.251 |
103 |
Billet* High-Torque Bottom End; Fuel Economy Cam
$549.00 |
| Exhaust 206° |
0.297 |
| *NOTE: Billet does not refer to Steel Billet. It simply means that the cam was ground from a new blank. |
Billet* Stage 2 - New Torquer Cam - Better Exhaust Flow
All Billet Camshafts are fillet radiused on #1 cylinder, all lobe edges radiused, snout tapped for 7/16" retainer |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Billet* Stage 2 |
Intake 175° |
0.251 |
104 |
New Torquer Cam (Better exhuast flow)
$549.00 |
| Exhaust 210° |
0.307 |
| *NOTE: Billet does not refer to Steel Billet. It simply means that the cam was ground from a new blank. |
Billet* Stage 3 - H.D. "Big Stick" Best All Around Power Camshaft
All Billet Camshafts are fillet radiused on #1 cylinder, all lobe edges radiused, snout tapped for 7/16" retainer |
| Product ID |
Duration @ .050 ADV. |
Cam Lift |
Lobe Sep |
Description |
| Billet* Stage 3 |
Intake 181° |
0.280 |
106 |
H.D. "Big Stick" Best All Around Power Camshaft
$549.00 |
| Exhaust 210° |
0.307 |
| *NOTE: Billet does not refer to Steel Billet. It simply means that the cam was ground from a new blank. |
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