This is the perfect camshaft for most performance engine builds, taking full advantage of additional boost and more aggressive tunes allowed on modified engines with COMP Cams Spring Kit.
The LST Camshaft Series uses the newest and most advanced lobe designs from COMP Cams. These new lobes provide the potential for major increases in power and torque in Duramax engines when combined with the appropriate tuning. The “Low Shock Technology” features lobe profiles designed to maximize additional engine airflow, which reduces harmful EGTs, while improving stability at higher RPM. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. Organized into stages that allow you to choose your level of performance, Stage 1 Camshafts are No Springs Required and run well with the factory or a performance tune. Stage 2 and 3 camshafts require a COMP Cams #26125 Beehive Valve Spring Kit upgrade but do produce the greatest potential for additional power and RPM when matched with maximum effort tuning.
Information:
See 132-300-13 for Stage 1, See 132-303-13 for Stage 3
Application Summary:
| Year |
Make/Model |
| 2003-2009 |
Chevrolet C4500 Kodiak |
| 2003-2009 |
Chevrolet C5500 Kodiak |
| 2006-2016 |
Chevrolet Express 2500 |
| 2006-2016 |
Chevrolet Express 3500 |
| 2009-2016 |
Chevrolet Express 4500 |
| 2001-2016 |
Chevrolet Silverado 2500 HD |
| 2007 |
Chevrolet Silverado 2500 HD Classic |
| 2001-2006 |
Chevrolet Silverado 3500 |
| 2007 |
Chevrolet Silverado 3500 Classic |
| 2007-2016 |
Chevrolet Silverado 3500 HD |
| 2003-2009 |
GMC C4500 Topkick |
| 2003-2009 |
GMC C5500 Topkick |
| 2006-2016 |
GMC Savana 2500 |
| 2006-2016 |
GMC Savana 3500 |
| 2009-2016 |
GMC Savana 4500 |
| 2001-2016 |
GMC Sierra 2500 HD |
| 2007 |
GMC Sierra 2500 HD Classic |
| 2001-2006 |
GMC Sierra 3500 |
| 2007 |
GMC Sierra 3500 Classic |
| 2007-2016 |
GMC Sierra 3500 HD |
| 2006 |
Hummer H1 |
| 2005-2011 |
Workhorse LF72 |
| 2005 |
Workhorse Custom Chassis P42 |
| Attributes |
| Advertised Exhaust Duration |
276 |
| Advertised Intake Duration |
252, 252 |
| Assembly Lubricant Included |
No, No |
| Basic Operating RPM Range |
1,200-4,000 |
| Cam Type |
Solid Roller, Solid Roller |
| Camshaft Gear Attachment |
1-Bolt, 1-Bolt |
| Camshaft Material |
Billet Steel, Billet Steel |
| Camshaft Series |
LST, LST |
| Computer Tune Required? |
Yes, Yes |
| Country of Origin (Primary) |
US |
| Emission Code |
Legal US |
| Engine Family |
2001-2016 GM 6600/6.6L Duramax Diesel, 2001-2016 GM 6600/6.6L Duramax Diesel |
| Exhaust Duration at .050 inch Lift |
208, 208 |
| Exhaust Valve Lash |
0.014, 0.014 |
| Exhaust Valve Lift |
0.475, 0.475 |
| Grind Number |
252LST-R107 |
| Harmonized Tariff Code (Schedule B) |
8409914000 |
| Hazardous Material Code |
N |
| Intake Duration at .050 Inch Lift |
194, 194 |
| Intake Valve Lash |
0.012, 0.012 |
| Intake Valve Lift |
0.475, 0.475 |
| Life Cycle Status Code |
Available to Order |
| Lifter Style |
Solid Roller, Solid Roller |
| Lifters Included |
No, No |
| Lobe Separation |
107, 107 |
| NAFTA Preference Criterion Code |
B |
| Recommended Valve Spring Kit |
26125ACS-KIT/26125BCS-KIT, 26125ACS-KIT/26125BCS-KIT |
| SDR Required Flag |
N |
| SDS Sheet Number |
N/A |
| Usage |
Street/Strip, Street/Strip |
| Valve Springs Required |
Yes, Yes |
| Warranty Time |
12 |
| GTIN |
00036584408611 |
