What engine do I have

[phil rogers]

I have a 1977 mercury boat which orginally came with a 120 hp 4 cyl.It now has a 3.0 liter with 1.90 intake valves and 1.50 exhaust valves.The guy I bought it from said it was a 96 engine.I was just wondering if this was a hi-performance 3.0.Would it be an 3.0 lx or what.I am trying to find the correct exhaust manifold for it because the one thats on it it does not have the proper port alignment but it still runs thanks phil

 

[Bondo]

Re: What engine do I have

I was just wondering if this was a hi-performance 3.0.

Ayuh,.......

That would still make it a 130/ 140hp motor........

You can search,+ paw thru manifolds All Day Long,.....
Even if you manage to Port Match it Perfectly,.......

It's Still a 130/ 140hp motor...............

You Never actually Feel the difference.......

Good Luck.........