ACL Chevrolet V8 267/305/327/350 Race Series .01 Oversize Main Bearing Set

SKU: ACL5M909H-01

Main Bearings

ACL Race Series Main Bearings

Acl

ACL Chevrolet V8 267/305/327/350 Race Series .01 Oversize Main Bearing Set

SKU: ACL5M909H-01

Main Bearings

ACL Race Series Main Bearings

IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

ACL Performance Race Series main bearing sets deliver everything performance bearings should be by utilizing design, metallurgy, engineering, precision quality control, and of course, years of knowledge and experience.

Main bearings feature multi-layered tri-metal copper alloy construction that blends characteristics to provide high strength and excellent seizure resistance. They are manufactured to exact tolerances ensuring a reliable fit and helping to maintain consistent clearances. Main bearings are augmented with extended grooves, as well as other bearing enhancements, like increased crush, bearing eccentricity, and enlarged I.D. chamfers.

ACL Performance Race Series main bearing sets are produced in standard and extra clearance versions, with or without friction reducer coating, and with modifications to meet specific build requirements, such as narrowed bearings that permit additional edge clearance when running crankshafts with exceptionally large fillet radii.

In the heat of competition proven technology always comes through. The choice for your build should always be ACL Performance Race Series engine bearings. Choose the main bearing set designed for your vehicle.

Product Overview

The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings. Designed to withstand higher RPM conditions, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications and feature: * *High strength overlay plate* with reduced thickness for improved fatigue properties * *Hardened steel backs* on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing. * *Increased crush* for improved bearing retention * *Elimination of flash plating* on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing. * *Increased eccentricity* to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films. * *3/4 grooved Main Bearings* to optimize bearing load carrying surface area and oil flow to the conrod bearings. * *Tight consistent wall tolerances* to help you maintain consistent clearances. * *Enlarged ID chamfers* on bearing edges where required to accommodate large fillet radius on performance crankshafts.

Product Details

Description:	Chevrolet 350ci (5.7L) Vortec V8 OHV 2v
Grade Type:	Performance
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)
Max Wall:	0.0954
Min Std Shaft Size:	2.4484" (62.189mm)
Min Std Tunnel Size:	2.6406" (67.071mm)
Oil Clearance:	Standard
Outside Diameter:	2.6406
Part Number:	acl5M909H-01
Shaft Diameter:	2.4484
Size:	.01
Width:	0.807

Part Type

Main Bearing Set

Data: v4.2 - Upd: 2026-10-13 01:20:27

Specifications

Product Attributes - UPC: 9315726177631
Product Attributes - Brand: ACL Race Series Performance Engine Bearings
Product Attributes - Notes: Fits engines with housing bores of 2.100 in.
Product Attributes - Quantity: Sold as a set of 5.
Product Attributes - Part Type: Main Bearings
Product Attributes - Groove Style: 1/2
Product Attributes - Product Line: ACL Performance Race Series Main Bearing Sets
Product Attributes - Bearing Usage: Performance
Product Attributes - Groove Location: Upper
Product Attributes - Grooved Bearing: Yes
Product Attributes - Bearing Material: Tri-metal copper-lead alloy
Product Attributes - Thrust Bearing Oversize: Stock
Product Attributes - Manufacturer's Part Number: 5M909H-01
Product Attributes - Engine Crankshaft Undersize (mm): 0.025mm
Product Attributes - Engine Crankshaft Undersize (in.): 0.001 in.

Reference Information

Brand Name/s	Acl
StreetFX SKU	acl5M909H-01
SFX Item ID	4073291
Supplier Item Code	4073291
Manufacturer SKU	5M909H-01
Manufacturer UPC	9315726177631
Alternative References	peb-5m909h-01, AEB5M909H-01

Compatibility

Application Data

Make CHEVROLET
Beginning Year 1969
Ending Year 1969
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 4.9L/302
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1969
Ending Year 1969
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 5.3L/327
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1969
Ending Year 1973
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 5.0L/307
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1969
Ending Year 2002
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1975
Ending Year 1976
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 4.3L/262
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1976
Ending Year 2002
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 5.0L/305
Application Notes Fits engines with housing bores of 2.100 in.
Make CHEVROLET
Beginning Year 1979
Ending Year 1982
Engine Type V8
Engine Family Chevy small block Gen I
Engine Size 4.4L/267
Application Notes Fits engines with housing bores of 2.100 in.