ACL Race Series - Alfa Romeo Performance Engine Bearings

Alfa Romeo Twin Cam Engine Bearings

ENGINE BEARINGS
	CON ROD BEARING SET		MAIN BEARING SET
	Part#		Part#
	4B1110H		5M1112H
Sizes	STD, .25		STD, .25
Oil Clearance	Standard		Standard
Half Type	Identical Halves		Identical Halves
Material	Tri-metal Hardened steel backs		Tri-metal
Min Std Shaft Size	1.9680in / 49.987mm		2.3606in / 59.959mm
Max Std Shaft Size	1.9685in / 50.000mm		2.3611in / 59.972mm
Min Std Tunnel Size	2.1139in / 53.693mm		2.5062in / 63.657mm
Max Std Tunnel Size	2.1145in / 53.708mm		2.5069in / 63.675mm
Max Wall at Crown	0.0723in / 1.836mm		0.0720in / 1.829mm
Max Overall Length	0.923in / 23.44mm		0.723in / 18.36mm #2, 4 (1113H) 1.005in / 25.52mm #1, 3, 5 (1112H)
Notes			Set contains 6 x 1112H and 4 x 1113H shells.
Diagram (Top View)

Part#		Material
Sizes		Notes