This ACL Standard Size High Performance Main Bearing Set with extra oil clearance is built for the Nissan/Infiniti VQ35DE 3.5L V6 engine, as used in the Infiniti I30 and Nissan Maxima. It uses the same standard journal sizing as ACL's standard VQ35DE main bearing set, with additional built-in oil clearance for performance applications.
Specifications:
- Type: Main Bearing Set
- Series: High Performance (Extra Oil Clearance)
- Size: Standard, with extra oil clearance
- Engine Fitment: Nissan/Infiniti VQ35DE (3.5L V6)
- Part Number: 4M2633HX-STD
FAQ
What's different about the "Extra Oil Clearance" version?
It uses the same standard journal size as the regular standard-size set but is machined with additional internal clearance, a spec some performance engine builds require.
What vehicles use the VQ35DE engine?
The Infiniti I30 and Nissan Maxima both used this 3.5L V6.
Does this include rod bearings?
No, this is a main bearing set only. Rod bearings are sold separately.
When should I choose extra oil clearance over the standard-clearance set?
Only when your engine builder specifies it, typically for higher oil pressure systems or specific performance clearance targets.

