• ACL 1M2505H-STD-4 Main Bearings Skyline/GT-R VR38
  • ACL 1M2505H-STD-4 Main Bearings Skyline/GT-R VR38
  • ACL 1M2505H-STD-4 Main Bearings Skyline/GT-R VR38
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ACL · 1M2505H-STD-4 · Main Bearing Set · Nissan Skyline VQ35HR/VQ37VHR, R35 GT-R VR38DETT

ACL · 1M2505H-STD-4 · Main Bearing Set · Nissan Skyline VQ35HR/VQ37VHR, R35 GT-R VR38DETT

$92.09 USD
$92.09 USD
ACL
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Phone Call or Text 336-900-7223

Email - support@eliteracefab.com

ACL1M2505H-STD-4
Looking for the lowest price?

Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Phone Call or Text 336-900-7223

Email - support@eliteracefab.com

In stock
Engine Bearings
The ACL Race Series Main Bearing Set (Part No. 1M2505H-STD-4) is engineered for high-performance Nissan VQ and VR engines, including Skyline VQ35HR, VQ37VHR, and GT-R R35 VR38DETT. Built with advanced...
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Free S&H Over $100 to Lower 48 Freight Items & Fluids Only Exception
Easy 30 Days- No Hassle Returns
37,000+ 5 Star Reviews
MFG Fitment Guarantee

Description

The ACL Race Series Main Bearing Set (Part No. 1M2505H-STD-4) is engineered for high-performance Nissan VQ and VR engines, including Skyline VQ35HR, VQ37VHR, and GT-R R35 VR38DETT. Built with advanced tri-metal construction, these bearings deliver superior fatigue resistance, precise clearances, and reliable lubrication under extreme RPM conditions. ACL bearings are trusted globally by engine builders for consistent strength and performance.

Key Features and Benefits

  • High-performance tri-metal main bearings

  • Withstands extreme high-RPM demands

  • High-strength overlay plate with reduced thickness for fatigue resistance

  • Hardened steel backs for improved stability and retention

  • Increased crush for secure housing fitment

  • No flash plating for enhanced heat transfer and housing grip

  • Optimized eccentricity for bore distortion compensation and oil film stability

  • 3/4 grooved design for load capacity and oil distribution

  • Tight wall tolerances for precise clearances

  • Enlarged ID chamfers to accommodate performance crankshaft fillets

Technical Specs / Material Info

  • Sizes: STD-0, STD-1, STD-2, STD-3, STD-4

  • Tunnel (mm): 69.993 – 70.017

  • Shaft (mm): 64.951 – 64.975

  • Max. Length: 20 mm

  • Half Type: Upper & Lower

  • Note: Set contains one pair of bearings (order multiple pairs for full set)

  • Weight: 0.09 kg

Vehicle Compatibility

Compatible with the following:

  • Nissan Skyline VQ35HR DOHC 24v

  • Nissan Skyline VQ37VHR DOHC 24v

  • Nissan GT-R R35 VR38DETT DOHC 24v Twin Turbo

Package Contents

  • One pair of ACL Race Series main bearings
    (order required number of pairs for a complete engine set)

Installation Notes

  • Professional installation recommended

  • Confirm correct bearing grade (STD-4) before assembly

  • Ensure proper lubrication and clearance during installation

Emissions & Compliance

  • Not applicable (non-emissions-related component)

Documentation

  • Technical Bulletin: Grade selection

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Testimonials

Looks like I get to be the first review for these guys. Let me start out by saying that I have had 3 other cars of a similar caliber to my GTR serviced/worked on and upgrades installed at other shops and none took the pride and level of detail that these guys did. I wish I could see all the welds on the downpipes and exhaust because it looked like artwork. Their fabricator made sure to send me daily updates and pictures which was also a big deal to me. For being an out of state experience it made it seem more like they were local to me and that I had known them for longer.

- James Lowe

Took the leap of faith on buying a set of their R35 intakes and downpipes because the price was half of anyone elses plus their car hauls a** at the track. Install went smooth and the power seems to be even better than advertised. Cant wait to get tuned in a few weeks. Their shelf tune honestly has to be 600+ hp as I pulled on a Hellcat last night. I see these guys and gals going a long ways if they can get out there and advertise. Customer service is on point paired with BIGGG savings for the winning combo.

- Luca Harris

Bought a Motec and had these guys build the harness and set it up fully. Track car that received the level of attention and detail of a show car while here. Made me feel at home every time I popped in for a visit and always offered to buy me lunch/dinner. I don’t see me shopping anywhere else as they make you feel like your family.

- Richard Westbrook

Took the leap of faith on buying a set of their R35 intakes and downpipes because the price was half of anyone elses plus their car hauls a** at the track. Install went smooth and the power seems to be even better than advertised. Cant wait to get tuned in a few weeks. Their shelf tune honestly has to be 600+ hp as I pulled on a Hellcat last night. I see these guys and gals going a long ways if they can get out there and advertise. Customer service is on point paired with BIGGG savings for the winning combo.

- Luca Harris

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