LS Cylinder Head Freeze Plug Retainer Hold Down Billet Plate Turbo LS1 LQ4 LS3

LS Cylinder Head Freeze Plug Retainer Hold Down Billet Plate Turbo LS1 LQ4 LS3

Marsoni

M251S

$87.99

Get it in 3 business days with 1 day shipping. Friday, May 29

LS Cylinder Head Freeze Plug Retainer Hold Down Billet Plate Turbo LS1 LQ4 LS3LS Freeze Plug Retainer Plates Keep your cylinder head freeze plugs from blowing out when running turbochargers with high amounts of boost, potentially causing high internal cooling system pressures Made in Wichita Kansas from aerospace grade, USA produced, billet aluminum Compatible with all GM gen III and IV cylinder heads Includes 4 freeze plug retainers, and mounting bolts (enough for both cylinder heads front and rear) Install the retainer plates

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These were way smaller than I imagined based on the photos. Those were obviously ai generated photos that don’t even look like the product at times. They are pretty flimsy and I wouldn’t buy again. My dog will tear this apart in 2 min. But it’s a good size to throw around I guess or maybe for a much smaller dog that doesn’t also want to chew. 3 stars because we will get some play out of them and there’s 2. Just know what you are getting

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Reviewed in the United States on October 16, 2025