Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
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Description
180-3700 | ARP Oldsmobile 350-455 7/16inch 12pt Head Bolt KitHead Bolt Kit Olds 350 455 7 16" 12pt Socket Size(s) 1 2 12pt When you upgrade the performance of your Olds engine, many times you will exceed the capabilities of the factory hardware. ARP has the solution for you. Made out of premium grade 8740 chromoly, these head bolts have a strength rated far superior to OE and "aircraft" quality bolts. This material is heat treated to provide a tensile strength in the 200,000 psi range and is an excellent choice
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 2076 reviews
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Product Reviews
★★★★★ 5
Highly recommend
Is a great product, it fit perfectly, the materials are great.
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Reviewed in the United States on April 7, 2026
★★★★★ 4
Looks great
Size: Large, Color: Black
Looks great, comfortable to wear, love that the buttons are the same color as the shirt, easy to wash, appears to be durably made.
Significantly exceeded expectations (I ordered 2 more).
4 stars instead of 5 because it’s possible to move your arms in a way that makes the shirt slightly tight in the bicep area, but that’s unnoticeable almost all of the time (and minor anyway). Note: even after a couple of wash - wear - wash cycles, there were creases along the same places as where the shirt was shipped; this was easily remedied by a quick iron on a low setting and I think reflects that it is quite resistant to wrinkles.
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Reviewed in the United States on February 26, 2025
★★★★★ 3
Nice shirt.
Size: Large, Color: Pacifico
Decent shirt but not as soft as you would think.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
It's for his sister graduation
Size: Small, Color: Pink
It fits my son perfectly
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Cool shirt
Size: XX-Large, Color: Black
Great shirts really comfortable
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Reviewed in the United States on May 14, 2026
