SKU: 6534344300

Diamond Racing LS 4.130" Pistons Set | 4.00" Stroke -3.84cc Flat Top

Sale price$641.25 Regular price$712.50
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

Diamond Racing LS 4.130" Pistons Set | 4.00" Stroke -3.84cc 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 4.130" 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 4.130"
Stroke 4.00"
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 -3.84cc
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:
  1. 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
SKU: 6534344300

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4.2 ★★★★★
Based on 6 reviews
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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Beautiful shoe but too narrow
Size: 10 Wide, Color: Navy Grainy Leather
Too narrow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
T
Verified Purchase
Tim Arnette
Dallas, US
★★★★★ 5
Looks good feels good
Size: 13 Wide, Color: Black
I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
E
Verified Purchase
Elizabeth Henderson
San Leandro, US
★★★★★ 4
Very narrow
Size: 10 Wide, Color: Cognac
Run narrow. For very narrow feet. Wide width fits like a regular width.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
M
Verified Purchase
Mynx
Natrona Heights, US
★★★★★ 5
Comfortable Shoes Right Out of the Box
Size: 9, Color: Black
I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2025
R
Verified Purchase
Rmanuel
Cuba, US
★★★★★ 1
Paid for new, received used.
Size: 9.5 Wide, Color: Cognac, Size: 9.5 Wide, Color: Cognac
Arrived dirty as if someone whore it for more than a few days. Maybe I was mistaken, but I saw nothing about “previously used” on the Amazon page. Returned it. I would suggest that the company use quality control when it comes to shipping. The shoes seem find otherwise. I ordered 9.5 and it was just a bit tight. If I reorder I will go for size 10.
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Reviewed in the United States on June 11, 2026

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