SKU: 23923795002

MSS Crank Harmonic Damper Balancer Pulley Bolt LS3 LS7 LS9 ZR1 Z06 Z/28 Dry Sump

Sale price$18.84 Regular price$20.93
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

MSS Crank Harmonic Damper Balancer Pulley Bolt LS3 LS7 LS9 ZR1 Z06 Z/28 Dry SumpGenuine Massive Speed: Precision Crank Bolt Kit for GM LS7 LS9 LS3 Dry Sump V8 Engines All OEM Dry Sumped LS motors Corvette LS3 Grand Sport, LS7, LS9, ZR1, Z06, Camaro Z 28 2006 2013 Corvette Z06, Z06 Carbon, 427. 2010 2013 Corvette Grand Sport with Manual Trans Dry Sumped. 2012 2015 Camaro Z 28 Truly superior strength is needed on this most critical of load bearing fasteners. The crankshaft sees immense kinetic energy! Both twisting and lateral

Genuine Massive Speed: Precision Crank Bolt Kit for GM LS7 / LS9 / LS3 Dry Sump V8 Engines

All OEM Dry Sumped LS motors - Corvette LS3 Grand Sport, LS7, LS9, ZR1, Z06, Camaro Z/28

  • 2006-2013 Corvette Z06, Z06 Carbon, 427.

  • 2010-2013 Corvette Grand Sport with Manual Trans Dry Sumped.

  • 2012-2015 Camaro Z/28

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 seperate washer plate (a full 1/4" thick!).

Fully reusable. Will not fit regular LS motors - see our other listings. 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: 23923795002

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4.3 ★★★★★
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ANgel
Lexington, US
★★★★★ 5
Good
Size: Medium, Color: Engine Red
Very soft and good color
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Reviewed in the United States on June 7, 2026
J
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Jason
Lexington, US
★★★★★ 3
Decent Look, But Sizing and Shrinkage Are Dealbreakers
Size: Medium, Color: White
Product: U.S. Polo Assn. Men’s Classic Polo Shirt Used for: 5 and a half months Key Features: – Clean, classic polo style with a decent fit (visually) – Breathable and lightweight for casual wear – Appears durable and holds up in the wash Ratings: Quality: The shirt feels alright and seems to hold up after regular washing. That said, it shrinks noticeably, and the sizing already feels off to begin with. Rating: 4/5 Performance: It’s wearable, but nothing exceptional. The fabric is fine for casual use, but the sizing was a big issue—I usually wear a medium, and this felt like an extra small. I even passed it on to someone smaller than me and they found it tight too. Rating: 3/5 Value: It’s reasonably priced, but there are definitely more comfortable and better-fitting polo shirts out there in the same price range. Rating: 3/5 Pros: – Easy to wash and care for – Seems durable over time Cons: – Shrinks badly in the wash – Sizing runs very small and feels inconsistent Summary: The U.S. Polo Assn. Classic Polo Shirt might work if you size up significantly and don’t mind a snug fit. It looks decent and holds up to washing, but the shrinking and poor sizing really hurt the overall experience. If comfort and a reliable fit matter to you, there are better options available for a similar price. Overall Rating: 3/5 Disclaimer: This review is based on my personal experience using the product. I'm not an expert—just sharing my honest thoughts to help others make an informed decision.
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Reviewed in the United States on July 22, 2025
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Mounzer Saad
Boise, US
★★★★★ 5
Nice shirt for the money
Size: Medium, Color: Heather Dark Gray
The shirt fits nicely. Seems to be of good quality.
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Reviewed in the United States on May 8, 2026
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Charles Myers
Dallas, US
★★★★★ 5
Good product as advertised
Size: Large, Color: West Blue
Bought many of these. Look good and fit true to size for the price
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Reviewed in the United States on May 25, 2026
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DG
Bozeman, US
★★★★★ 5
Good shirt
Size: Small, Color: Black
Very nice shirt, I usually wear medium but I had to get one size smaller. The small men size fits my collar great but the dryer might shrink it.
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Reviewed in the United States on May 5, 2026

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