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Description
Diamond Racing LS 4.030" Pistons Set | 3.622" Stroke -2cc Flat TopLSX Performance Parts proudly offer the very best in piston development & innovation Diamond Racing Pistons. Founded in 1968 by a group of racers named Jim "Diamond" Cavallaro, Nick Plantas & Butch Eldkins, The guys combined their resources & industry knowledge to create the perfect pistons set. It did not take long for the game changing brand to take off In the 1970's Diamond was the go to brand for Super Stock & Pro Stock racing. As a team, Diamond
LSX Performance Parts proudly offer the very best in piston development & innovation - Diamond Racing Pistons.Founded in 1968 by a group of racers named Jim "Diamond" Cavallaro, Nick Plantas & Butch Eldkins, The guys combined their resources & industry knowledge to create the perfect pistons set.
It did not take long for the game changing brand to take off - In the 1970's Diamond was the go to brand for Super Stock & Pro Stock racing. As a team, Diamond was not focused on just supplying the very best pistons. They also did cylinder head porting, Engine building & race engine preparations. Diamond became contracted to NASCAR to builds all the engines for the IROC cars.
Just a few years later, Diamond is far ahead of their time with the most innovative & succesful pistons on the market.
Diamond is the biggest supplier of NASCAR, NHRA, Pro Stock, Drag Racing, Circle Track & Diesel markets.
Your New Diamond Racing Pistons Kit Includes
- 1 x Set of 8 Street/Strip 4.030" Diamond Racing Flat Top Pistons;
- 3D milling on piston crowns & ready to install finish;
- 1 x Set of Diamond standard piston rings;
- Premium 8620 .180w wrist pins & roundwire locks included;
- Moly skirt coating for friction loss & skirt wear protection;
- Valve pockets designed to work with most aftermarket cylinder heads;
- Valve pocket depth: .176" intake & .105" exhaust;
Diamond Racing Pistons Specs
Bore 4.030"
Stroke 3.622"
Conrod Length 6.125"
Compression Height 1.304"
Wrist Pin .927" x 2.500"
Compression Ratio 10.7:1 @ 66cc
Piston Material 2618 Alloy
Piston Style Flat Top
Volume -2.0cc
Ring Stack 1.2mm x 1.2mm x 3.0mm
Want To Chat To Us About Your New Pistons Set?
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 2
Not for heavy or big busted women
Size: 42F, Color: Sargasso
I wanted to love this but there are issues. First: does it feel good around the back? YES! Second: it won’t fit well of you have a tummy or have a large chest. Reasons: the center closure turns sideways and doesn’t stay upright when on. Natural tension of being worn makes it pull and since it’s not sewn in tightly there, it moves and then you’ve got a wonky closure. If you have a tummy, this metal closure sticks into you every time you bend over. The points of the underwire-while nicely stitched in-are not padded and stick into you under the arm area and in front with every movement. A little better care when making could rid this issue. Over all fits to size, but you need to be thin and smaller chest size in order for this to work. Truly wanted to love this one.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Many pros and cons, but overall OK
Size: 42DD, Color: Brown Purple
I love the concept of this bra, however, it has been a struggle finding the right fit. I fairly consistently wear a 40DD. The 40 band on this was way too big and ended up with a 38. The cup sizes I. Still having issues with the 40DD I was spilling over in the middle, but the next cup size up the cup was rippling. Neither in the 40 provided any support to the breast and they bounced and jiggled like I was wearing nothing. The cup in the 38DD was way too small. The 38DDD/F way better, but still not quite right. In all cases the stretch fabric of the cups is very thin, I don’t mind that as I certainly don’t need additional al padding! The other benefit of the stretchy fabric is if you have any discrepancy from size to size the stretch fabric accommodates this better. All that said, I do wish the stretchy cup was just a bit thicker to keep the girls from getting out of control and dropping! The back of the bra is so comfortable and hides any bulges perfectly!! My two biggest complaints are that the underwire comes quite far up into the armpit and is uncomfortable getting pit poked all day. And two the pit poke is exacerbated due to the fact that there is absolutely no padding at the tip of the underwire.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Very comfortable bra
This bra is very comfortable. I usually hate bras, but I can really wear it all day. The fit is excellent. Straps don't slide off my shoulders like my other bras. The straps stay put because they are closer together in the back than normal, like a sports bra. The only quibble that I have is that they do not prevent jiggle because the cup is just one layer of smooth material. I'm not taking away a star for this, because I haven't seen a bra that does it all yet. They do give a lot of support and hold the girls up, but I usually will wear a cardigan over another layer to hide this.
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Reviewed in the United States on January 27, 2026
★★★★★ 1
Hard to snap
Size: 36DD, Color: Sargasso
This ia is a nice looking bra, but I could not get it fastened!
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Practical and stylish backpack for work and everyday use.
Color: Apricot, Size: 16 Inch
This backpack is incredibly versatile and functional, designed for daily work, travel, and professional use. It features multiple compartments for easy organization of your belongings, including a dedicated laptop compartment that keeps your device secure and separate from other personal items.
The exterior is made of water-resistant nylon, offering added protection against moisture and daily wear and tear, making it ideal for the office or business meetings. Padded and adjustable straps provide comfort during extended use, while double zippers allow for quick and easy access to the main compartments.
With its sleek and functional design, this backpack strikes the perfect balance between style and practicality, suitable for both business environments and casual or travel use. Its dimensions allow you to comfortably carry standard-sized laptops, documents, accessories, and everyday personal items.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
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