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COMP Cams Evolution HCT (Hydraulic Cartridge Technology) is a new patented tappet. The Evolution HCT tappet provides most consistent performance of any set of lifters in the aftermarket. A combination of self-contained hydraulic cartridge and accompanying reduced oil volume that is less effected by oil aeration delivers the most consistent bleed rates between each lifter. The smaller volume within the hydraulic cartridge creates one of the most responsive and quietest lifters on the market. Startup noise is greatly reduced and a precision controlled bleed down rate ensure excellent performance at high RPM. The patented cartridge design also allows for an incredibly stiff lifter body, greatly reducing body distortion and further ensuring consistent hydraulic performance. This patented HCT tappet is not just a performance Original Equipment replacement. This is an all new bespoke design started from a blank canvas developed to meet the demanding performance and durability our customers desire.Also, as an industry first the hydraulic element of this patented lifter is serviceable, allowing anyone to rebuild their lifters in their own garage.
Evolution HCT Lifters offer quite operation expected from a hydraulic tappet and higher RPM demand by many of today’s modern engine builds. Most consistent, highest performing, and quietest hydraulic lifter on the market.- Designed to meet the demanding performance and durability needs of today’s high performance engines
- Most consistent performing lifters available
- Quietest hydraulic lifters on the market
- Patented design
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Certain engines respond better to a light lifter pre-load because it recovers more quickly from any bad harmonics in the valve train. Others work better with a heavy pre-load because oil volume is reduced under the plunger, which increases lifter stiffness. COMP Cams Short Travel Hydraulic Roller Lifters let you have the advantages of both light pre-load and reduced oil volume, producing the most stable and highest-revving hydraulic lifter available. COMP now offers an XD version of these lifters that features a heavy-duty tool Steel Pushrod seat. This adds strength and durability in Xtreme Duty Applications such as turbo drag cars and offshore powerboats. The lifters are available for a variety of Chevrolet, GM LS and Chrysler engines.
These short travel retro-fit XD hydraulic roller lifters feature a billet seat and short travel. These lifters’ short travel allows for light pre-load and reduced oil volume for the highest revving lifter for Chevrolet Small Block.
Available individually (pair) under 15853XD-2. -
Link Bar Retro-Fit Hydraulic Roller Lifters (Patent Pending). Precise piston fit for lowest leakdown rate. Patent-pending piston allows trapped air to escape lifter for faster “pump up”. Axles produced from premium 52100 heat-treated Steel for increased wear resistance and overall strength. Lightweight body design. Includes (16) lifters. Applications: Chrysler Small Block 273-360
Available in a pair under 8920-2 -
The COMP Cams .660″ Lift Conical Valve Spring Kits for Dodge Gen IV HEMIs features:
Max Lift: .660″
Increased High RPM Stability
Excellent spring upgrade for high performance and Race Applications
Includes valve springs, locks, Seals, seats, and Titanium retainersDesigned for ’09-’18 Dodge 5.7L HEMI, this Conical Spring Kit includes titanium retainers, valve locks, seals and seats that require no machine work. Capable of 0.660″ valve lift, this kit removes the guesswork for your HEMI engine.
Available w/ Chromemoly Steel Retainers under 7230CC-KIT.
09-’18 Dodge 5.7L HEMI -
The springs conical design features a smaller diameter in the upper half to reduce active mass. This reduction in mass, along with the progressive frequency created by the conical shape, dampens coil oscillations better than any other spring design. These improvements allow for the use of more aggressive Camshafts and an increase in RPM limit speed. Finally, Superfinish processing of the springs results in increased durability and spring life.
Kit includes:#7230-16 Conical Valve Springs
#1774-16 +.100 Tool Steel Retainers
#623-16 Valve Locks
#511-16 Valve Seals
#4680-16 Spring SeatsThe .675″ Lift Conical Spring Kit with Tool Steel Retainers for GM LS1/LS3 allows users to easily install revolutionary Conical Valve Springs on any high performance GM LS1/LS3 engine.
LS1, LS2, LS3, LS6, 4.8, 5.3, 5.7, 6.0 and 6.2 engines -
The .675″ Lift Conical Spring Kit with Tool Steel Retainers for GM LT1/LS7 Applications features a smaller diameter in the upper half to reduce active mass. This reduction in mass, along with the progressive frequency created by the conical shape, dampens coil oscillations better than any other spring design. These improvements in dynamic stability allow for the use of more aggressive Camshafts and an increase in RPM limit speed. Finally, Superfinish processing of the springs results in increased durability and spring life.
Kit includes:#7230-16 Conical valve Springs
#1772-16 Tool Steel Retainers
#623-16 Valve Locks
#511-16 Valve Seals
#4680-16 Spring SeatsThe .675″ Lift Conical Spring Kit with Tool Steel Retainers for GM LT1/LS7 Applications allows users to easily install revolutionary Conical Valve Springs on any high performance GM LT1/LS7 engine.
See 7230TI-KIT for Kit with Titanium Retainers, See 7230TI-KIT for Kit with Titanium Retainers
L83/L86/LT1/LS7 GM engines -
The .675″ Lift Conical Spring Kit with Titanium Retainers for GM LT1/LS7 Applications features a smaller diameter in the upper half to reduce active mass. This reduction in mass, along with the progressive frequency created by the conical shape, dampens coil oscillations better than any other spring design. These improvements in dynamic stability allow for the use of more aggressive Camshafts and an increase in RPM limit speed. Finally, Superfinish processing of the springs results in increased durability and spring life.
Kit includes:#7230-16 Conical valve Springs
#772-16 Titanium Retainers
#623-16 Valve Locks
#511-16 Valve Seals
#4680-16 Spring SeatsThe .675″ Lift Conical Spring Kit with Titanium Retainers for GM LT1/LS7 Applications allows users to easily install revolutionary Conical Valve Springs on any high performance GM LT1/LS7 engine.
See 7230TS-KIT for Kit with Tool Steel Retainers
L83/L86/LT1/LS7 GM engines -
Complete Kit Allows Installation of Revolutionary Conical Valve Springs on Nearly Any GM LS. LS Conical Valve Spring Kits allow enthusiasts and builders to better harness the power of popular LS Race and street engine Applications.
Featuring our innovative natural damping conical valve springs for increased RPM, this LS spring kit includes tool steel retainers, spring seats, seals and locks for a complete kit that can handle .615″ lift from aggressive roller cams.
Available with chromemoly steel retainers under 7228CS-KIT. -
Revolutionary Advancement In High Performance Spring Technology.
7256-16
Outer Diameter and
Inner Diameter and
Seat Load
Open Load
Coil Bind
Rate andTop
1.060″
.660″
160 @ 1.900″
495 @ 1.210″
1.165″
485Bottom
1.390″
.990″Conical Valve Springs 160 @ 1.900″ / 495 @ 1.210″
Available individually under 7256-1 -
COMP Cams Custom Camshaft Dodge HEMI VVT – DROP SHIP ONLY
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The COMP Cams No Springs Required Drift Cam is the first Camshaft specifically designed for 4.8/5.3 LS swapped drift, road Race and autocross cars. Along with major gains in power across the whole RPM range, excellent throttle response is achieved and valve train stability is maintained up to 7500 RPM by using the new LST (Low Shock Technology) lobe design. This stability keeps valve train parts from breaking and helps to maximize the longevity of your LS engine. This Cam has already proven itself in Pro-Am Drifting and SCCA Autocross Competition!
The best possible drop-in cam for a budget 5.3L Drift / Road Race / Drag build with Spintron-proven 7500 RPM+ stability. It is a good idea to replace the timing chain.
Fits 4.8, 5.3, 5.7, 6.0, 6.2 and 7.0 Liter LS1, LS2, LS3, LS4, LS6, LS7 plus SUV and Truck Engines (Grinds are specific to displacement and cylinder head design) -
This kit contains everything needed for Camshaft degreeing when the cylinder heads are OFF of the engine. Kits Includes the Following:‚ #4791-1 16″ Pro Degree Wheel‚ #4901 Heads Off Degreeing Fixture‚ #4909 0-1″ Travel Dial Indicator‚ #4912 5″ Dial Indicator Extension‚ #4933 Plate Style TDC Stop‚ #4794 Wire Degree Wheel Pointer‚ One Crankshaft Socket (See Engines Listed Below)
This pro cam degree kit includes all of COMP’s professional quality tools to degree your cam with the heads off like a pro. Complete with our 16″ wheel, fixture, dial indicator, socket and pointer, you too can achieve professional results.
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