My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

ACL Bearings 5M909H-10 Race Series Main Bearing Set Undersize - 010

Manufacturer

Part Number

5M909H-10
Sale Price

$99.08

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ACL Bearings 5M909H-10 is a high-performance Race Series main bearing set designed for Chevrolet small block engines, including 262, 267, 302, 305, 307, 327, and 350 cubic inch applications. This bearing set is manufactured for crankshafts ground .010" undersize, making it ideal for rebuilds using reground crankshafts.

Advanced Tri-Metal Construction:

  • Multi-layered tri-metal copper alloy construction provides exceptional strength and seizure resistance
  • High-strength overlay plate with reduced thickness for improved fatigue properties
  • Hardened steel backing for enhanced bearing retention and support
  • Elimination of flash plating on bearing backs improves heat transfer and maximizes grip in the housing

Race-Proven Performance Features:

  • 3/4 groove design optimizes bearing load carrying surface area and oil flow to connecting rod bearings
  • Increased crush for superior bearing retention under high RPM conditions
  • Increased eccentricity compensates for bore distortion at high RPM and assists in hydrodynamic oil film formation
  • Enlarged ID chamfers accommodate large fillet radius on performance crankshafts
  • Manufactured to exact tolerances for reliable fit and consistent clearances

ACL Race Series bearings are trusted by engine builders worldwide, from sport compact drift racing to NASCAR, IHRA, and NHRA competitions. This set includes 5 main bearings and fits engines with housing bores of 2.100 inches.

Products specifications

Max Overall Length

0.807" (20.50mm) w/ 2377H/HX 1.718" (43.64mm) w/ 2378H/HX Flange

Max Std Shaft Size

2.4493" (62.212mm)

Max Std Tunnel Size

2.6416" (67.097mm)

Max Wall at Crown

0.0954" (2.423mm)

Min Std Shaft Size

2.4484" (62.189mm)

Min Std Tunnel Size

2.6406" (67.071mm)

Oil Clearance

Standard

Very happy with my purchase and product from Autoplicity! Highly recommend.

Cheapest price I could find. Uses google checkout, which I like. Fast shipping, sends tracking number fast.<br>Limited shipping options, but the thing I ordered was an odd size.<br>

Great Communication and instant shipping. Well done!

Fantastic price, positive communication, arrived before promised worked out great!

quick transaction

Phone service was quick and personable wanting to solve my problem immediately. The weight of my package was wrong causing shipping to be $300 to ship a gas can but was fixed right away. Prices were great! I would purchase through them again!

Extremely satisfied with my transaction with Autoplicity. Item was shipped out almost immediately after I paid. Customer support responded very quickly and answered all of my questions in a very professional manner. Will definitely be shopping here in the future.

All I can say is Wow! Great service, prices and easy returns. I got the wrong size helmet (my fault), they paid for the return shipping and refunded my money. I simply reordered and got what I wanted. Fantastic!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy