Best in 7 days
Pay in installments of $2668.38 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 9 - Oct 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Performance Series 6.7 Cummins Common Rail Long BlockD&J Precision Machine Performance Series 6. 7 Cummins Long Block Our Performance Series 6. 7 Cummins Long Blocks come fully assembled from the oil pan to the rocker box with our X Beam Stock Length Billet Rods and our Stage 2 High Performance Cylinder Head. We custom build this engine for your application using the best parts available in the industry, including Cummins, Mahle Clevite, and ARP. This long block is rated for up to 1200 hp, making it
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
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 694 reviews
Sort
Product Reviews
★★★★★ 5
Size perfect
Size: 4.5-7, Color: Electro Pink/Electro Tangerine/Electro Pink
Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
good, worth the value
Size: Medium, Color: (025) Castlerock / Castlerock / Anthracite
Well it was delivered quick, and all my socks are mostly under armour, as they have developed holes in the heels now, so here i am getting a new set. they fit great, comfortable as usual. some folks may have some sort of issues, while some dont and i cannot complain. worth buying for sure. i recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2025
★★★★★ 5
Kids?
Size: Medium, Color: (025) Castlerock / Castlerock / Anthracite
I didn’t realize these were kids socks, until after I got them, but the fit is amazing and they stay put, without coming off my heels. I wear an 8.5-9 in women’s shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 5
Good, Comfortable Fit
Size: Medium, Color: (100) White / White / Black, Number of Items: 6, Size: Medium, Color: (100) White / White / Black, Number of Items: 6
I wear a women’s size 9.5 and I got a size Medium. They fit perfect, they aren’t super heavy, but have cushion where needed. Perfect for my steel toe boots
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Son loves them!
Size: Large, Color: Black (6-pairs), Number of Items: 6
My son loves these socks! Comfy, good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
