Shopping Cart

Your cart is empty.

Your cart is empty.

ACL (4B8351H-STD) Standard Size High Performance Rod Bearing Set for Ford/Mazda

Free shipping on orders over $29.99

$43.99

$ 18 .99 $18.99

In Stock

About this item

  • Package height :2.54 cm
  • Package length :13.462 cm
  • Package width :6.096 cm
  • Package Weight :0.068 kg


ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. This ensures reliable fit and helps maintain consistent clearances. A blend of characteristics to provide high strength and excellent seizure resistance. No flash plating is applied to further improve bearing retention an maximize heat transfer.


JAB III
Reviewed in the United States on February 27, 2022
I use these for my Miata race engine rebuilds. They are true to size and hold up well.
Fancy66
Reviewed in the United States on February 17, 2020
Was sent the wrong bearings, aren’t the same in the picture or description. πŸ‘ŽπŸ»
Michael
Reviewed in the United States on July 21, 2019
Even with the STD suffixed bearings, these are overly large. I waited to write this review until after I had broken in my rebuilt engine. When I measured the clearances of the old bearings with 100k miles with Plastigauge, it was still within the spec for the Miata 1.8L BPZ3 engine (0.8 thou to 1.4 thou) at roughly 1.2 though. I installed these bearings and measured again, and I measured 1.6 thou on all of the mains. I also installed ACL race bearings for the connecting rods, and those were above spec as well. While the engine is running fine, there is ever so slightly more noise than stock, and I'm guessing it's due to these bearings. If you are going to advertise a bearing as standard size, it should at least be within spec.
Samuel
Reviewed in the United States on March 30, 2019
The media could not be loaded.
Jason
Reviewed in the United States on April 10, 2019
One car has 12 track hours on it, the other has 48+ and counting, no issues.
Recommended Products

$84.99

$ 41 .99 $41.99

4.9
Select Option

$9.99

$ 4 .99 $4.99

4.8
Select Option

$13.49

$ 5 .99 $5.99

4.3
Select Option

$18.33

$ 8 .99 $8.99

4.6
Select Option

$16.01

$ 7 .99 $7.99

4.3
Select Option

$23.99

$ 10 .99 $10.99

4.5
Select Option

$23.26

$ 9 .99 $9.99

4.6
Select Option

$19.77

$ 8 .99 $8.99

4.4
Select Option