Water flow via bunny ears to exhaust

[prinler]

Water flow via bunny ears to exhaust....

It just doesn't look right. Check out my videos.

http://youtu.be/2ujRDVKqY2I
http://youtu.be/caVeMQn1XqI

I checked the impeller and its still suppl and new. Not warn in the slightest! .

Let me know what you think please.

Prinler

 

[Howard Sterndrive]

Re: Water flow via bunny ears to exhaust

looks fine to me...but if you went as far as the impeller, best to throw another one in for the $22, however greasing the spline is the most important part of going in there.

I noticed in another thread you mention using a 4.3 in place of the 3.8. Did you attach the OMC 3.8 manifolds to the 4.3?
Were there any valve cover clearance issues? tks.

 

[prinler]

Re: Water flow via bunny ears to exhaust

Looks ok? Hmmm guess I'm just paridoid?

It was a flawless swap. Used same heads, manifolds, everything. The engine guy told me the difference in a 3.8 and 4.3 is like a 327 and a 350. Same same I think he said its a different crank.

 

[boobie]

Re: Water flow via bunny ears to exhaust

Prinler, the water flow looks fine to me too.

 

[prinler]

Re: Water flow via bunny ears to exhaust

Ty guys very much!

 

[Howard Sterndrive]

Re: Water flow via bunny ears to exhaust

The engine guy told me the difference in a 3.8 and 4.3 is like a 327 and a 350. Same same I think he said its a different crank.

it sure is a different crank, which is why you need a 4.3 distributor. It'll run with a 3.8 dizzy, but there's a chronic issue with ignition timing on 3 of the cylinders if you still have the IBM7014 distributor in it.

I am curious what the compression ratio is of a 4.3 with 3.8 heads.
The V8 equivalent head-wise would be a 5.7 and 5.0 (350 vs. 305) more than 327 vs 350, and you don't have to google very far to learn why 305 heads on a 350 won't work.
Maybe the builder took all of that into account, but I would have thought a piston swap would be necessary to make it all work reliably and make power.

 

[prinler]

Re: Water flow via bunny ears to exhaust

When we built the engine he asked me what kind of gas I wanted to run in it. I said the lowest. Not trying to break any records! So low
Compression was his goal. Now I don't really know how that computes but when I did a compression check it was 120ish on each.

If I found 4.3l heads the exsaust manifolds would not fit. That's a huge expense! All I wanted was a 3.8 block but they are super rare on the west coats. All fwd car versions here. Red back east because of snow I guess.

 

[Howard Sterndrive]

Re: Water flow via bunny ears to exhaust

When we built the engine he asked me what kind of gas I wanted to run in it. I said the lowest. Not trying to break any records! So low
Compression was his goal.

ahh, well it sounds like he knew what he was doing then.. those 1985 2 pc rear main seal 4.3's are the real needle in the haystack out east
-good you found one.

 

[prinler]

Re: Water flow via bunny ears to exhaust

Yeah, he even recommended a different torque curve with the cam and we got one custom ground CAM from back east. I went from a 15P to a 20P and i cant wait to see the difference! Im plagued by little things now like water getting into the upper and oil leaking out from the lower.