1998 mercruiser 4.3LH

[Lirksdad]

I’m looking at purchasing a rebuilt long block as mine is hydrolocked. Does my motor have a balanced shaft? Roller rockers? Serial number is
0L090145. I just want to make sure I’m getting the right block. Thanks

 

[Scott06]

Yours will have balance shaft and roller lifters

Look at
Michigan motorz https://www.michiganmotorz.com/4-3l-vortec-marine-engine-1996-current

 

[Scott Danforth]

The generation prior (1993-1995) had a balance shaft as well.

An alternative is take your current motor to your local machine shop