SKU: 30926519658

GM Quad 4 High Output Engine Blueprint Series T-shirt

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Description

GM Quad 4 High Output Engine Blueprint Series T-shirtThe engine family known as the Quad 4s was debuted to the public in the spring of 1987. The Quad 4 is a 2,260. 5 cc (2. 3 L; 137. 9 cu in) DOHC inline four cylinder produced by General Motors' Oldsmobile division. The Quad 4 name is derived from the engine's four valve, four cylinder layout. The engine was a modern design for its time, using a cast iron block and an aluminum head. Even though belts were more popular for this purpose on OHC engines at

The engine family known as the Quad 4s was debuted to the public in the spring of 1987. The Quad 4 is a 2,260.5 cc (2.3 L; 137.9 cu in) DOHC inline four-cylinder produced by General Motors' Oldsmobile division. The Quad 4 name is derived from the engine's four-valve, four-cylinder layout. The engine was a modern design for its time, using a cast-iron block and an aluminum head. Even though belts were more popular for this purpose on OHC engines at the time, chains were used to time the camshafts to the crankshaft. The water pump is also driven by the timing chain. The Quad 4 was the first wholly domestic regular production DOHC four-cylinder engine designed and built by GM; the only prior DOHC four-cylinder engine offered by GM was the Cosworth Vega, which featured a DOHC head designed by Cosworth in England.


We're offering this design in 2 different shirt choices: our 100% cotton that fits true to size and favorite, the Tri-Blend which is stupid soft and fits a bit snug---size up for this option.


Bella and Canvas Mens Triblend

4.2 oz.

50/25/25 polyester/combed ringspun cotton/rayon

Set-in 1x1 baby rib collar

Satin label




District Unisex Shirt



100% cotton

4.3-ounce and 30 singles

Rib-Knit Crew Neck

Double needle sleeves and hem

As of 11 Dec 2010 production time is 4-6 business days. Please be aware the USPS system is slow currently. We do not make any guarantees of delivery dates as the mail system is out of our control. We are not able to take returns due to late arriving orders.
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SKU: 30926519658

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★★★★★ 5
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Reviewed in the United States on December 18, 2025
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Kenji
Waukegan, US
★★★★★ 4
Works great, just no different from any other pimple patch on the market
These pimple patches by Thayers are made from 100% hydrocolloid and definitely work in terms of helping speed up the pimple healing process. These pimple patches work best when your pimple is ripe enough. If you stick these pimple patches on when your pimples are not ripe enough yet, they will not do anything, and it would be a waste of a pimple sticker. You know when your pimple is ripe when it comes to a head and has that little white spot. When it's ripe, I would stick this pimple patch overnight and typically by the time I wake up, the pimple patch will have absorbed all the gunk from my pimple. You will know that it worked if you see your pimple patch turn white. Sometimes it might take an extra night for the gunk to come out. When you stick these pimple patches on, make sure your face is freshly washed without any face products or else they won't stick as well. Given what the Thayers brand is known for (natural remedies and herbal extracts), I would think that they would infuse some natural ingredients into this pimple patch to help speed up the healing process even more. But to my disappointment, they did not add any additional active ingredient to this pimple patch despite what their brand stands for so I took off a star.
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Reviewed in the United States on March 6, 2025
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VS1384
Lexington, US
★★★★★ 5
Great for my teen
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Michaela Arabia
Alexandria, US
★★★★★ 5
A MUST Buy for your TEEN.
Helping my son so much - these work within a couple of hours to flatten ouchie whiteheads. My 14 years old son is so grateful! There’s 2 sizes, 22 patches, and they truly are “invisible” like the box says. These have been working so well (better than any other brand - and we’ve tried them all) and the price is the cheapest. We Love THAYERS brand now - lifetime user here for sure.
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Reviewed in the United States on July 27, 2025
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Assyrian77
Dallas, US
★★★★★ 5
It works!
These patches work great! My daughter likes them.
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