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GM Performance 12742399 Ls Lifter Valley Block Cover

Manufacturer

Picture for manufacturer GM Performance

Part Number

12742399
8 reviews
Sale Price

$539.88

3 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The GM Performance 12742399 is a lifter valley block-off cover designed for LS engine builds. This OEM-quality cover plate is used to seal the lifter valley area on LS engines when converting to an external oil pump drive or when building a non-standard engine configuration.

Key Features:

  • Direct replacement GM OEM part for LS engine applications
  • Seals the lifter valley area when lifters are not in use
  • Precision-machined aluminum construction for durability and proper fitment
  • Essential component for certain LS engine conversions and custom builds
  • GM Performance quality and engineering

This block-off cover is commonly used in racing applications, LS engine swaps, and specialized builds where the traditional lifter valley configuration is modified. Proper gaskets and sealant are recommended for installation to ensure a leak-free seal.

HAVEN'T HAD TIME TO INSTALL YET SO I SURE HOPE IT WORKS

I tried calling several times with no answer. Then an email took a whole day for a response

Good experience. Good price.

Blah

Good pricing fast delivery

I found that boatplicity had the best price I could find on the Scotty rod holders and mounts that I needed. I had never ordered from or heard of them before. But I took a chance and placed an order with them anyway because of the lowest price. I was pleasantly surprised! Everything went GREAT!!! I would buy from them again!!! (I do think I should have gotten free shipping on an order that was over $100.00 but I did not.)

Very fast and correct product!

good price.

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