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The Best Ls Engine Rebuild Kit of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Ls Engine Rebuild Kit of 2023. Check our ranking below.

2,165 Reviews Scanned

Rank No. #1

5.3L High Performance Engine Rebuild Kit | E-1840-P Stage 2 Sloppy HP Camshaft | Flat Top Pistons | Compatible with 2004-2009 Chevrolet LS 325 5.3L 5.3 | LS4 LH8 LH9 LMF LY5 LC9

The Sloppy Stage 2 Camshaft is a cam with a fairly aggressive profile. It will have a nice Lopey Idle and make tons of power all while keeping costs low. This cam is a great choice for those daily drivers that like a nice Lopey/Choppy idle. Great for Cars, Trucks, SUV's, Street Rods, and LS Swaps. There is no hiding this cam as will will have a muscle car sounds to it. Everyone will take note of this street warrior. Automatic's will perform best with a 2,600-2,800 Stall Converter.
STOP buying from no-name chinese brands with parts that just break after a few weeks of use. Both Redline USA (Portland, OR) and Enginetech (Dallas, TX) are quality parts distribution companies that use advanced first-world ISO certifications and all parts go through a pre-shipment inspection in addition to our own in-house quality testing.
THIS LISTING WILL INCLUDE:
(1) SLOPPY STAGE-2 HIGH-PERFORMANCE CAMSHAFT (.585"/.585")
(8) HYPER-EUTECTIC FLAT-TOP PISTONS W/ FLOATING PINS & MOLY RINGS (SIZES: STD, 020, 030, 040)

Rank No. #2

6.0L High Performance Engine Rebuild Kit | E-1840-P Stage 2 Sloppy HP Camshaft | Flat Top Pistons | Compatible with Chevrolet GM LS 364 6.0L 6.0 | LQ4 LQ9 LS2 L76 LY6 L98

The Sloppy Stage 2 Camshaft is a cam with a fairly aggressive profile. It will have a nice Lopey Idle and make tons of power all while keeping costs low. This cam is a great choice for those daily drivers that like a nice Lopey/Choppy idle. Great for Cars, Trucks, SUV's, Street Rods, and LS Swaps. There is no hiding this cam as will will have a muscle car sounds to it. Everyone will take note of this street warrior. Automatic's will perform best with a 2,600-2,800 Stall Converter.
STOP buying from no-name chinese brands with parts that just break after a few weeks of use. Both Redline USA (Portland, OR) and Enginetech (Dallas, TX) are quality parts distribution companies that use advanced first-world ISO certifications and all parts go through a pre-shipment inspection in addition to our own in-house quality testing.
THIS LISTING WILL INCLUDE:
(1) SLOPPY STAGE-2 HIGH-PERFORMANCE CAMSHAFT (.585"/.585")
(8) HYPER-EUTECTIC FLAT-TOP PISTONS W/ FLOATING PINS & MOLY RINGS (SIZES: STD, 020, 030, 040)

SaleRank No. #3

12558178 Engine Rebuild Re-Ring Bearings Kit for 1999-2017 GM Chevy GMC Gen III 4.8L 5.3L 6.0L

【Replace Part Number】: 12558178, BTR73450, 12617944, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033, MS2199, CB-663, E-937K, 2M4978, MS2199P, CB663P, BC409J, BB253J, C96008.
【Compatible Vehicle】: For Sierra Silverado Tahoe Yukon Suburban 1999 -2013 LM7 LR4 L59 LM4 L33 LY2 L20 LY5 LMG LMF LH6 LC9 LH8 LH9. For GM CAR 325/5.3L OHY 8 16V"C" GM 3.780" Bore. For GM TRUCK, VAN, SUV 293/4.8L OHV V8 16V GM 3.780" Bore. For GM TRUCK, VAN，SUY 325/53L OHV V8 16V GM 3.780"Bore. For HUMMER TRUCK, VAN, SUV 325/5.3L OHV V8"L,P”GM95.94mm Bore. For ISUZU TRUCK, VAN, SUV 5328/53L OHV V8 16VPM'GM 96.00mm Bore. For SAAB TRUCK,VAN,SUV 5326/5.3L OHV V8 16VM"GM9600mm Bore.
【Easy Installation】: The LS gasket set kit is easy to install, no need for complicated tools, easy to use, direct replacement for your old or broken one. A perfect replacement for your original part.
【Package Included】: 1 * Gen III Valley Cover Gasket 12558178, 2 * LS1/LS2/LS3 Header Gasket, 1 * LS Oil Pan Gasket, 2 * LS Water Pump Gasket, 1 * LS Front Cover Gasket, 2 * LS Valve Cover Gasket, 1 * LS Damper Seal, 1 * LS Rear Cover Gasket, 1 * Rear Main Seal, 4 * Water Crossover/Block Off Gaskets 12551933, 1 * Oil Filter Adapter Bypass Gasket 12611384, 2 * Knock Sensor Grommet 12558177, 2 * Multi-Layer Steel (MLS) Head Gaskets for LS9 engines.
【Worry-free Return and Refund Policy】: We stand behind the quality of our product with a worry-free return and refund policy. If you have any questions, please contact us with the frame number, and we will provide you with the most correct advice. Buy with confidence!

Rank No. #4

1997-2007 LS1 4.8L 5.3L 5.7L 6.0L 6.2L LS +7.400 Engine E1840P Sloppy Mechanics Stage 2 Cam Lifters Kit HT2148 12595365 12589226

🏎️[Cam & Lifter Kit Contents] 1 Intake Seal Set, 1 Valve Cover Seal Set, 1 Timing Cover Gasket Set, 1 Valley Cover Gasket, 1 One-piece Oil Pan Gasket, 1 Exhaust Header Gasket Set, 1 Rear Main Seal, 1 Rear Main Cover Gasket, 2 Multilayer Steel Cylinder Head Gaskets, 1 hevrolet Performance Parts Harmonic Balancer Bolt, 30 Cylinder Head Bolts, 16 HL-2148 Valve Lifters, 16 PAC-1218 Springs, 1 E-1840-P Camshaft, 1 M295 oil pump, 1 12556582 Timing chain.
🏎️[Vehicle Fitment] Compatible with GM Chevy 1997-2007 LS L92 L99 5.3L 5.7L 6.0L 6.2L1997-2007 V8 LSx Sloppy Stage 2.Not for use with AFM/DOD.Great for Cars, Trucks, SUV's, Street Rods, and LS Swaps.
🏎️[Cam Specs] 2200 to 5400 rpm; intake valve lift: .585"; exhaust valve lift: .585"; advertised intake duration: 283°; advertised exhaust duration: 286°; intake duration at .050": 228°; exhaust duration at .050": 230°; lobe separation: 112°; intake centerline: 108°; cam gear attachment: 3-bolt.
🏎️[16 Pcs Valve Springs] Outside diameter of outer spring (in): 1.290 in; inside diameter of outer spring (in): 0.885 in; spring coil bind height (in): 1.140 in; install load: 130lbs; install height: 1.800"; open height: 1.175"; open load: 318 lbs; rate (lbs/in): 313 lbs./in.
🏎️[Service] 1 Year Unlimited-mileage Quality Guarantee.We extremely value your satisfaction and strive to provide you good shopping exprience. Any further question, please feel free to contact us at any time.

Rank No. #5

Engine Rebuild Overhaul Kit FITS: 2003-2004 Chevrolet GMC 5.3L 5.3 5300 V8 LM7 Vortec

This rebuild kit kit has all the parts you need to freshen up that worn engine. These parts are manufactured directly from only high quality companies with ISO, QS & TS quality systems in place. These are not cheap Chinese parts, this is a quality kit that will last.
This rebuild kit will include: Full Gasket Set w/ MLS Head Gaskets, Press-Fit Dish-Top Pistons w/ Coated Skirts, Premium Piston Rings, Main/Rod Bearings, Late '03 Style Cam Bearings, 3pc Timing Set, Oil Pump, Freeze Plugs, Valve Stem Seals
SIZES AVAILABLE: Pistons & Rings:STD, 020, 030, 040 --- Rod/Main Bearings:STD, 010, 020, 030
AFTER YOU ORDER YOU NEED TO SEND US A MESSAGE LETTING US KNOW WHAT SIZE OF PARTS YOU WANT. THANKS!
The pictures are accurate and show you the actual parts that you will be buying. Because of limits, sometimes not all the parts are pictured, but we always try to supply pics of the main pieces. If you have any other questions, feel free to send us a message, and we can usually get back to you within 1 business day. Thanks!

Last update on 2025-07-07 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What is horsepower of a LS3 engine?

A: All things considered, the 6.2L LS3 produced 430 horsepower and 424 lb.-ft. of torque, while dual-mode equipped LS3s churned out 436 horsepower and 428 lb.-ft. of torque, respectively. From the factory, LS3 equipped C6 Corvettes were capable of posting 0-60 MPH times of 4.8 seconds and generated top speeds of 190 MPH.

Q: What is LS swap kit?

A: They deliver a package of high quality, LS swap parts that are made in the U.S., and are designed to work together. Their virtually complete LS engine swap kit brings together just about all of the needed pieces that are designed to install an LS engine between your factory frame rails.

Q: What is a LS3 engine?

A: The LS3 engine is a Gen IV, 6.2L aluminum-block V8 car engine that first appeared in the 2008 Chevrolet Corvette . The L99—introduced for the 2010 Chevy Camaro SS—is also a Gen IV 6.2L aluminum-block V8, but with the addition of Active Fuel Management …

Ls Engine Rebuild Kit