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Michigan Motorsports Delphi LS7 Lifter Set with Guide Trays | Fits GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 LY5 LY6 LM7 | Delphi Part #'s 12499225 & 25341990

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Availability: In Stock.
Fulfilled by Michigan Motorsports

Arrives Thursday, Aug 6
Order within 11 minutes
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Features

  • Michigan Motorsports buys Delphi LS7 Lifters in very large quantities in order to offer the best price available. See pictures for details. Lifters are packaged in sets of 16 and include new OEM Quality Guide Trays.
  • OEM-Quality Delphi LS7 Lifters Includes 16 Delphi LS7 hydraulic roller lifters and 4 lifter guide trays, offering a direct replacement for worn or damaged lifters in GM LS-based engines.
  • Direct Replacement for GM Part Numbers: Replaces GM 12499225 and 25341990, ensuring precise fitment and compatibility with factory lifter guides for reliable performance.
  • Compatible with Multiple LS Engines: Designed for use in LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7, and other LS-based 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines, making them ideal for rebuilds, LS swaps, and valvetrain upgrades.
  • Perfect for Camshaft Upgrades: Optimized for hydraulic roller camshaft applications, these lifters provide enhanced power and torque for naturally aspirated, turbocharged, or supercharged LS engines.

Description

Enhance your LS engine's performance with the industry's most reliable lifters: Michigan Motorsports Delphi LS7 Lifters. Designed for superior durability, precision, and performance, these lifters are perfect for high performance builds, cam swaps, and engine rebuilds. Trusted by enthusiasts and professionals alike, Delphi LS7 lifters are the go-to choice for Gm LS engine applications. Genuine Delphi Lifters are a performance hydraulic roller lifter that was originally used in Chevrolet LS7 Engines. Delphi lifters are valued for their durability and reliability. They are also often used as a performance upgrade for MANY other LS/LT engines due to their compatibility and quality. Genuine Delphi Lifters can be identified by having a gold clip on top of the hydraulic plunger. If you find that your lifters have a silver clip then it is NOT a Genuine Delphi Lifter. Where are Michigan Motorsports Delphi LS7 Lifters made? Delphi lifters are made in Grand Rapids, MI USA in a UAW factory. Will I need to change my pushrods to a different length? Assuming no other parts have been changed on the combination, no pushrod length change is needed to install Delphi LS7 lifters in your LS based engine. Which way should the oil hole be facing when installed? It does not matter which way the oil hole is facing on LS engines, the lifters can be installed in either direction. What is the break-in procedure for Delphi LS7 Lifters? No break-in is necessary for hydraulic roller lifters and camshafts. Just be sure the camshaft and lifters are properly lubricated when installed. Can I use these lifters in my LS3 or LS7 engine? YES! These lifters are fully compatible with LS1, LS2, LS3, LS6 and LS7 engines Applications Michigan Motorsports Delphi LS7 Lifters are compatible with a wide range of GM LS engines and vehicles, including: MM Delphi LS7 Lifters Delphi Lifters & Trays Lifters Pushrods Trays Delphi Lifters Trays Rods Half Set of Delphi Lifter 12 Delphi LS7 Lifters Delphi Lifters Kit "Michigan Motorsports LS7 Lifters transformed my LS3 build. Smooth operation, better performance, and zero issues during installation. Highly Recommend!" -Verified Buyer "These lifters were the perfect upgrade for my cam swap. Amazing quality and quick delivery from Michigan Motorsports. My engine runs like a dream!" -Verified Buyer Our mission is to sell the highest quality, most affordable LS/LT swap products on the market. Our fantastic service team and sales staff with over 60 years of combined experience make us an excellent resource for LSx/LTx products! "The only thing faster than our shipping is an LS." Orders placed before 3pm est are shipped from our facility in Niles, Michigan, THE SAME DAY! Michigan Motorsports is a leading performance parts supplier specializing in LS and Gen V LT engine components. We offer high-quality camshafts, valvetrain parts, harnesses, and accessories for street and race builds. We’re gearheads first—offering expert knowledge, real-world testing, and unmatched service to help every builder succeed. Michigan Motorsports was founded by enthusiasts driven to make premium LS & Gen V LT parts more accessible and affordable to every builder out there. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Manufacturer: ‎Michigan Motorsports


Brand: ‎Michigan Motorsports


Model: ‎Delphi LS7 Lifters


Item Weight: ‎0.01 ounces


Package Dimensions: ‎12.32 x 8.58 x 5.75 inches


Item model number: ‎97400-16+97500-4


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎97400-16+97500-4


Position: ‎Top


Date First Available: March 1, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Michigan motorsports ls7 lifters
They worked out great so far 2006 Silverado 4.8 Be aware they make a lot of chatter at first start up at least for me. Noise lasted about a few seconds. 2nd time it made a even louder knock/ lifter noise. I shut off my engine started it again and went silent better then ever. So far so good. I would recommend and purchase another set. ... show more
Reviewed in the United States on January 25, 2024 by Daniel Z

  • Los lifter
Son de buena calidad
Reviewed in the United States on November 7, 2025 by ivan Alejandro

  • Seems to be good quality. Package was torn on arrival.
The product looks to be a good GM replacement lifter. I see there is some questionable reviews on this product. The trays have the GM part number. And the product was shipped in the company package. The lifters were shipped in oil, and they look to be correct for the LS7 application.
Reviewed in the United States on December 11, 2021 by Zachary Johnson Zachary Johnson

  • Great lifters
Got these for a dod delete. Runs like a sowing machine you barely even feel it’s on
Reviewed in the United States on February 27, 2025 by Cesar-amg

  • Haven’t broke yet
Fit like a glove
Reviewed in the United States on November 18, 2024 by tony duenas

  • Very high quality!
All there parts are the best quality I’m running a lot of parts in my engine and yes I’ve put them to the test I’m Running texas speed camshaft, heavy springs and supercharged with great oil pressure and there still rockin so don’t hesitate to buy anything from Michigan motor sports
Reviewed in the United States on July 29, 2020 by thomas johnson thomas johnson

  • Eliminated the noise !!! 2006 GMC Sierra 2500
My 2006 GMC Sierra 2500 HD 6.0 has 280,000 miles on it. At startup it was a clacker!!!! It then started happening on the freeway all the time. Finally decided to fix the problem. My engine purrs like a kitten now. My sure to get new engine head bolts and new exhaust bolts. Soaked the lifters while I was opening up the engine. Michigan Motorsports was fantastic!!! They answered my email quickly and were very helpful. ... show more
Reviewed in the United States on July 11, 2022 by Brandon Brandon

  • Cheap Quality
Lasted less than 80 miles before suddenly heard loud clanking on the passenger side of the engine. Pulled valve cover and found a rocker arm sitting sideways and no pushrod. Fished the pieces of the broken pushrod out with a magnet and checked with a borescope. Found cracked lifter tray from this kit (Fasteners for lifter trays also torqued correctly). Pushrods were correct length and valve lash set properly. Had good oil pressure until this suddenly happened.. ... show more
Reviewed in the United States on October 2, 2025 by Scott Rollis Scott Rollis

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