Product Description
JOHNSON SLOW LEAKDOWN LIFTERS for LS ENGINES 2110R
Includes 4 GM 12595365 Guide Trays
Fits: LS1 LS2 LS3 LS6 LS7 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM4 LM7 L59 LS4 LH8 LH9 L99 L92 L94 L96 L9H LY6 LT1 LT4 L83 L86 L84 L87 L8T
These are Johnson's race-style drop-in lifters for all LS engines not running DOD/AFM. They do not use a link bar, so you will still use the plastic lifter trays (included in this listing).
Hydraulic-Roller
No Link Bar
.005" Shorter Than LS7 Lifter
.035" Recommended Pre-Load +-.010"
Set of 16 Lifters and 4 Guide Trays
Features include:
- Cold forged steel body heat treated for exceptional wear resistance.
- Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction.
- Cold forged extra long piston, precision ground and fitted for controlled leak down and pump up.
- High flow disc style quick reacting check valve for better reaction at higher RPM.
- Precision oil metering assuring proper oiling to the rocker arms without sacrificing oil pressure.
- In late 2013 GM Performance went to Johnson Lifters to ask them what they had for their COPO LS engines. GM tested the Johnson 2110 lifters, GM LS7 lifters, Cadillac Racing lifters, and others to include those from Morel. GM took the lifters and put them through months of testing, and the Johnson lifters were the only ones that they had no issues with axle retention. Johnsons were repeatedly tested past 8,500 rpm
- Slow bleed-down lifter describes the ability to maintain lift without collapsing, or the repeatability in common rotation on the cam.
- If you had a .630” lift camshaft but your lifters bled down .030” as the lobe of the cam rotates, you essentially would only be getting .600” of lift from your cam
- Johnson lifters maintained their lift 95% of the time
- LS7 lifters only maintained their lift 50% of time
- Cold Start noise is commonly attributed to two main factors: High valve spring pressure, The high leak (bleed) down rate of the lifter (SLR lifters are actually a positive here)
- Johnson lifters have the largest inlet from low pressure (engine oil pressure) to high pressure (holds the load via the pushrod to from the rocker arm). Johnson uses the largest disc style check valve in the industry.
- Cold forged 1018 steel blanks CNC’d to final dimensions. Heat treated for exceptional wear resistance. Chosen over 8620 for roller pocket strength. The grain structure from forging increases the durability and dimensional repeatability in that area, which allows for an encapsulated roller versus an open fork design. The encapsulated rollers when used with standard GM diameter lifter will take higher spring loads than an open fork design.
Recommended Lifter Installation:
1. Inspect the lifters for any signs of damage to the lifter body or wheel.
2. Verify the rollers spin without any binding.
3. Wipe down the lifter body with a lint free rag.
4. Coat the outside of the lifter with engine oil (not recommended to soak)
5. Debris entering a lifter is the main cause of failure. Clean the top end of the engine to ensure no foreign debris can enter the lifters upon startup.
6. Inspect the Rocker Arms, Pushrods Ends, and Valve Tips for excessive wear. Replace as necessary.
7. Install lifters and set the lifter preload to the recommended specifications.
8. Change oil/filter after 50 miles to remove any debris that may have been missed during assembly.
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Great LS Lifters
These high quality lifters were needed for a head and cam swap. Fast shipping with Michigan Motorsports! Thank you
