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

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Michigan Motorsports Delphi LS7 Lifters Set of 16 with Guide Trays | Direct Replacement for GM LS Engines | Fits LS1 LS2 LS3 LS6 LQ4 LQ9 LY5 LY6 LM7 4.8 5.3 5.7 6.0 6.2 | 12499225, 25341990

Product ID: 605042211

🔧Set of 16 lifters + 4 guide trays

🚗Fits 10+ GM LS engine variants (4.8L-6.2L)

⚙️Direct OEM replacement for GM 12499225 & 25341990

Description

⚡ Unlock LS7 Power: The Ultimate Lifters Upgrade You Can't Afford to Miss!

COMPLETE OEM QUALITY KIT - Includes 16 Delphi LS7 hydraulic roller lifters plus 4 guide trays for a seamless, all-in-one upgrade.
OPTIMIZED FOR PERFORMANCE - Hydraulic roller design supports higher RPMs and enhanced power delivery for naturally aspirated, turbo, or supercharged setups.
PRECISION FITMENT GUARANTEED - Direct replacement for GM part numbers 12499225 & 25341990 ensures perfect compatibility with factory components.
VERSATILE ENGINE COMPATIBILITY - Engineered to fit LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7 and more—ideal for rebuilds, swaps, and upgrades.
DURABILITY MEETS SMOOTH OPERATION - Built to reduce lifter noise and improve valvetrain stability, delivering long-lasting reliability on street and track.

Michigan Motorsports Delphi LS7 Lifters Set includes 16 hydraulic roller lifters and 4 guide trays, designed as a direct OEM replacement for GM part numbers 12499225 and 25341990. Compatible with a wide range of GM LS engines (4.8L to 6.2L), this kit enhances valvetrain durability, supports higher RPMs, and ensures smooth, reliable performance for engine rebuilds, swaps, and cam upgrades.

Specifications

ASIN	B07G8M28BG
Brand	Michigan Motorsports
Customer Reviews	4.6 4.6 out of 5 stars (496)
Date First Available	13 August 2018
Item Weight	0.28 g
Item model number	97400-16+97500-4
Manufacturer	Michigan Motorsports
Manufacturer Part Number	97400-16+97500-4
Package Dimensions	31.3 x 21.8 x 14.6 cm; 0.28 g
Position	Top

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