What engine is this?1986 Byliner Ciera DE, Volvo Penta (GM 5.0 or 5.7)

[Britner]

Hi there,

I am unsure of what engine I have in a recently purchased boat. I have been told many things about this boat which are different both for better and worse! I have a tech coming tomorrow and he asked what engine I have. I was told 5.7, but is there a way to find out for sure? I have attached a couple of pics.
Thanks.

 

[captmello]

Can't tell from your pics. there should be a block number just below the port side head, on the backside of the engine. It may have the Liters stamped there as well. 5.0 or 5.7.

 

[Britner]

Thanks for that, I found that it is actually a 5.7.
Thanks again!

 

[bruceb58]

Just so you know, you have an automotive distributor on your engine. Not only is that very dangerous, your advance curve is not correct for a boat engine so your performance is going to suffer.

Wonder what else is not marine rated on that engine.