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

Delphi Ls7 Lifter Set With Guide Trays Fits Gm Ls

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Description

⚡ Upgrade your LS engine’s heartbeat with precision lifters that mean business!

COMPREHENSIVE SET - Includes 16 Delphi LS7 lifters plus 4 guide trays—everything you need for a complete valvetrain refresh.
PERFORMANCE READY - Hydraulic roller design optimized for naturally aspirated, turbocharged, or supercharged LS engines to unlock max power and torque.
PRECISION OEM FITMENT - Direct replacement for GM part #12499225 & #25341990 ensures flawless compatibility and hassle-free installation.
TRUSTED QUALITY VALUE - Michigan Motorsports bulk sourcing delivers premium OEM quality at an unbeatable price—join thousands of satisfied LS enthusiasts.
VERSATILE ENGINE COMPATIBILITY - Perfectly engineered for LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7 and all 4.8L to 6.2L LS engines.

Michigan Motorsports Delphi LS7 Lifter Set offers 16 OEM-quality hydraulic roller lifters plus 4 guide trays, engineered as direct replacements for GM LS engines ranging from 4.8L to 6.2L. Compatible with a wide range of LS variants, these lifters are optimized for camshaft upgrades, delivering enhanced power and reliability for rebuilds, swaps, and performance builds.

Specifications

ASIN	B07G8M28BG
Best Sellers Rank	#53,985 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Engine Lifters
Brand	Michigan Motorsports
Customer Reviews	4.6 4.6 out of 5 stars (496)
Date First Available	March 1, 2018
Is Discontinued By Manufacturer	No
Item Weight	0.01 ounces
Item model number	97400-16+97500-4
Manufacturer	Michigan Motorsports
Manufacturer Part Number	97400-16+97500-4
Model	Delphi LS7 Lifters
Package Dimensions	12.32 x 8.58 x 5.75 inches
Position	Top

Reviews

I**O

7.11.2025

D**Z

25.01.2024

Z**N

11.12.2021

C**G

27.02.2025

B**N

11.07.2022

C**N

15.04.2024

S**R

26.03.2026

T**T

30.01.2024

K**N

14.08.2019

K**E

27.03.2024

A**R

13.11.2019

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