SKU: 54869102038

Massive Speed Extra Length Crank Damper Balancer Pulley Bolt LS1Gen lll V8 ARP LS LSX

Sale price$20.87 Regular price$23.19
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Massive Speed Extra Length Crank Damper Balancer Pulley Bolt LS1Gen lll V8 ARP LS LSXGenuine Massive Speed: Precision Crank Bolt Kit for GM LS Gen III IV 3 4 Series V8 Engines. EXTRA LENGTH!!! Still fits ALL LS Motors '97 today except LS7. Perfect for getting proper thread engagement on those DAMAGED crank snout threads!!! Did you (or someone else?) use a stock or other bolt to attempt to draw down the press fit crank pulley? Those who have tried this soon realize the first several threads will be pulled out of the crank often

Genuine Massive Speed: Precision Crank Bolt Kit for GM LS / Gen III / IV 3 4 Series V8 Engines.

EXTRA LENGTH!!!

Still fits ALL LS Motors '97- today except LS7.

Perfect for getting proper thread engagement on those DAMAGED crank snout threads!!! Did you (or someone else?) use a stock or other bolt to attempt to draw down the press fit crank pulley? Those who have tried this soon realize the first several threads will be pulled out of the crank... often rendering the crank useless. Massive has released this new XL-LS Extended length bolt that travels further into the threaded crank snout to engage more thread, giving your damaged crankshaft new life. The OEM bolt only engages the last 22mm of thread. Our new XL-LS bolt offers 32mm of engagement, a 50% increase. So even if the first few mm of your crank threads are damaged, merely clean out any material, and you will obtain proper or even increased thread bond!

Others have used the superior torque transfer on their crank driven supercharged cars for enhanced clamp load.

  • Our bolt is a full 10mm longer than the OE or ARP bolt.

Because, who couldn't use an extra 10mm?

Truly superior strength is needed on this most critical of load bearing fasteners. The crankshaft sees immense kinetic energy! Both twisting and lateral loads are exerted on this one area, and to an even greater degree on belt driven supercharged cars.

OEM fasteners are one-time-use - they stretch and must be replaced, so upgrading with the Massive Speed Precision unit is a "no-brainer". Grade 12.9 197,000 PSI tensile strength 12 point flanged bolt finished in black oxide places superior clamp only load to balancer through the use of a separate washer plate (a full 1/4" thick!) versus the 1 piece stocker.

Fully reusable. Will not fit LS7. Crank bolt should never be used to install balancer, use of proper tool is necessary.

These are every bit as strong as the other guys, but priced right, and IN STOCK!!!

Made right here in the USA!!!

NOW INCLUDES Genuine ULTRA-TORQUE Moly Assembly Lube!!! The other guys DON'T Include it!


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: 54869102038

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4.5 ★★★★★
Based on 19 reviews
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Sophie
Los Angeles, US
★★★★★ 5
Postpartum Certified!! :)
Size: Medium, Color: Black
I am currently a breast feeding mother who is only 5 weeks post partum. Heading into the summer I needed clothes that fit my changing body and gave me a little confidence that I’ve been lacking recently. This dress has completely done it!! The material is extremely comfortable and not too tight on my body. It’s long enough to give me the coverage that I’m comfortable with but still makes me feel cute. Without knowing how to shop for or what size my body is at after birth, I listened to the comments and got a medium when I was thinking I might be a large and it fits great! Definitely size down though! I will be getting more!!!
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Reviewed in the United States on May 20, 2026
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Amber Candelaria
Draper, US
★★★★★ 5
Perfect for summer
Size: Medium, Color: Coffee
This is so comfortable and really good quality. Can be worn casually or dresses up for summertime. The coffee color is perfect. Runs a size big.
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Reviewed in the United States on May 18, 2026
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Pam’s Product Picks
Battle Creek, US
★★★★★ 5
Good looking shirts. Will not disappoint.
Size: Large, Color: Carbon Heather
These shirts are a great quality. They wash great with no shrinkage. They are very comfortable based on my husband’s feedback. They look as advertised. The variation in colors were perfect. The size fits perfectly. My husband is an XL for the long sleeve but a L for the short sleeved Carhartt T-shirts. The neckline is comfortable. Would recommend to others and will be purchasing more.
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Reviewed in the United States on April 21, 2026
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DabbinDave
Natrona Heights, US
★★★★★ 5
good durable shirts
Size: 4X-Large, Color: Black
The Carhartt K87 pocket t-shirt is a classic for a reason. The heavyweight cotton material feels durable and high quality, making it great for both work and everyday wear. It holds up well over time and doesn’t feel flimsy like cheaper t-shirts. The loose fit is one of the standout features—it gives you plenty of room to move and stays comfortable even during long days. The chest pocket is a nice touch for small items, and the overall construction feels solid with minimal twisting after washing. Comfort-wise, it starts a bit stiff but softens up after a few washes, which is pretty typical for thicker cotton shirts. It’s also available in a wide range of colors, so it’s easy to grab a few and rotate them. The main downside is the fit can run large and slightly boxy, so you might want to size down depending on how you like your shirts to fit. Some people may also find the heavyweight fabric a bit warm in hot weather. Overall, it’s a reliable, long-lasting t-shirt that delivers great value for the price and is perfect if you want something durable and simple.
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Reviewed in the United States on April 12, 2026
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Candace Phillips
Natrona Heights, US
★★★★★ 5
Great quality item!
Size: XX-Large, Color: Black
Great quality & very durable! We love any product made by Carhartt! The size is always great, they do not shrink and the neckline does not stretch out easily, which makes for a great casual wear appearance!
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Reviewed in the United States on April 21, 2026

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