SKU: 83357649035

MACE STEEL MAIN GIRDLE TO SUIT HOLDEN ADVENTRA VY VZ LS1 5.7L V8

Sale price$167.35 Regular price$185.95
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

MACE STEEL MAIN GIRDLE TO SUIT HOLDEN ADVENTRA VY VZ LS1 5.7L V8This main cap girdle is designed to reduce "capwalk", stop block web flexing and eliminate cracking of the main caps block webs; this is achieved by boxing in the main caps. Our heavy duty girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine. In addition, due to the close proximity of the main stud girdle

This main cap girdle is designed to reduce "capwalk", stop block web flexing and eliminate cracking of the main caps/block webs; this is achieved by boxing in the main caps. Our heavy duty girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine.

In addition, due to the close proximity of the main stud girdle to the crankshaft and rods, it also aids in stripping oil off of the crank, which in itself yields a net gain in HP.

Fabricated from 12mm thick high strength steel, these girdles are a must for high rpm/high horsepower applications where block rigidity is critical.

 

Contents:

  • 1 X Steel main girdle

Vehicle Fitment Guide

 

Notes:

  • The images are for illustrative purposes only.
  • This girdle is compatible with OEM windage tray, main caps and sump.
  • This girdle will clear up to a 4" stroke.
  • Custom length main studs are required. These can be purchased from any authorized ARP dealer.
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: 83357649035

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4.0 ★★★★★
Based on 9 reviews
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Verified Purchase
Oliver JM
Pawtucket, US
★★★★★ 5
Sturdy - Easily Adjustable - Works as Advertised
I modified it to fit a small subwoofer under my desk. I flipped the arms, inverted them and screwed it on to the desk. Not the intended use, but it solved my issue perfectly. It's really sturdy, it'll be perfect for mini PC's.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
K
Verified Purchase
Kaleb
Lowell, US
★★★★★ 5
Perfect for mounting subs!
Love it. Mounted my subwoofer under desk with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Flexibility and clean desk space!!!
Bought three of these for my home office. Two for Synology NAS drives and one for a Mac Studio. The size ranges make this the perfect product to get everything off my desk. A little difficult to install with the desk upright so I suggest turning it on its side or over completely. In my case, I have these in sit stand desks which is great.
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Reviewed in the United States on December 24, 2025
W
Verified Purchase
William Lech
Birmingham, US
★★★★★ 4
Decent bracket, Non-beveled screw holes cause complications
The screws that secure the mount to the underside of the desk stick out enough to cause the inner dimensions to change. I had to use the next hole down to increase the size of the bracket to accommodate my device, resulting in a less secure mount than desired. If the holes were beveled so that the screws fit more flush with the mount I'd be able to give it 5 stars. But the inner dimensions are not entirely as advertised due to the screws. Quality is up to standard otherwise, installation is relatively straightforward, price point is fine for a bracket of this size.
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Reviewed in the United States on September 18, 2025
K
Verified Purchase
Kris
Bozeman, US
★★★★★ 5
Great mount!
Great under desk NAS mount. Adjustable and sturdy, easy to install. Worked well for my Qnap TR-004 four slot DAS. I used 5/64 drill bit for the holes. Since my desk has a rear lip I reused rear stopper bit as a headphone hanger. I bend it slightly to a hook shape.
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Reviewed in the United States on May 6, 2025

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