Hello Pedro, a big hello from the United States, and a hearty
"WELCOME ABOARD".
You're at the right place and we'll be happy to assist any way we can.
There are numerous Small Block Chevy motors out there, and they're basically the same engine but when it comes to the Q series there were some major deviations that still make us wonder "WHAT WERE THEY THINKING"?
The Q series uses a special intake manifold.
There is not a 350CU to my knowledge, and it may actually be a Crusader motor so look carefully at the photos we have. A 283 exhaust manifold will fit any of the SBC motors.
In a Riva, I am wondering if you have the 350FLV? The 350 by the way, is the first of the small block Chevy motors (SBC) to have the 4-bolt main bearing caps. A strong and capable motor in every way, very rebuildable and good parts supply.
The 350FLV is a hot motor put in the XK series boats. It uses the standard Chevy intake manifolds, and it looks identical to my 327F in my little 1966 Sea Skiff.
Here are some photos
Here is a 350FLV, if you look closely you can see it on the ID tag.
Here is another 350FLV
Here is what the Q intake looks like,
Here is where you can find parts for the Q or the F series, once we find out what you really have.
http://www.chris-craft-parts.com/used.html#2
If you are unable to upload photos directly via a photo host on the internet, just email them to me at chriscraftcommander@hotmail.com and I'll post them for you.
Regards, cheers,
Paul
forum moderator