I've started on taking my engine apart since Monday, been working on it when I have time, It first was in my friends shop, but I got ranned out by his father, so we towed my car home (safely) and been working on it, I have recent pictures of it, and how its going.

(Note: This is my first swap, and I have been doing this swap by my self, since most of my friends cant help me or dont want to. my friend jon has been trying to help a few times, but not as much as I want him to, and my father hasnt been really around to help, and I have to get this engine swap finnish before next week, so I'm taking it slowly, all I got left is undoing the motor mounts, and take off the two remaining transmission bolts, and I'll be ready to take it out.)

This engine was built by a private builder, I'm not too fond of what I thought of expecting to see in it. 350, has a complete hydraulic roller setup, aftermarket intake, HEI distributor, chrome vavle covers, chrome air cleaner (going to get a smaller one for hood clearance.) chrome timing cover. I bought a Holley Street Avenger 670 cfm, vacuum secondary. I'm looking about 360 HP and 380 TQ out of this engine.

(I will get more pictures up soon, later.)






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Looks decent.

Why the vacuum secondary carb?

 

looks good you'll probably not going to like the secondary carb especially if your running a big cam, my .520 lift cam in car doesn't even put out enough vacuum for the brake booster

 

Umm, the vacuum secondary is opened via the venturi vacuum produced in the primaries by flow, not the manifold vacuum. . .

 

I don't have a very big cam in it, (222'@.50" and .447'' Lift). My friend advised me to go with a vacuum secondary, and I don't know carbs much, but I don't really care either, it looks like a decent carb. I do think I will change alot of the parts off this engine anyway later in my future (I was so not happy with what I got for the engine, but I dont want to go into detail with it.)

I've been at this swap since monday and it was suppose to be done today (Friday - 8/15/08) My friends were suppose to help, but they couldnt get around it, and neither me when I had to work everyday. so I took the rest of the weekend off and monday, I do hope to get things finnished by sunday night, but I wont get my hopes up.

(update on the engine swap: we got the old engine out, and took off the sensors we Do need off the old onto the new, almost finnished and we are about to put in the new one tommrow afternoon if I get to work on it in the morning.)

 

I haven't been updating this thread, We got the car running (we had to pull the engine 4 times, and the corvette 6 speed out 3 times )
well, first day we got it going, my 6 speed works pretty good, except I cant get into 5th gear, it feels like the gear has been rounded up pretty good, so I think next summer I'll pull the tranny and send it somewhere to just replace the fifth gear.
Well, first day, the starter goes out
soon as we got that in, the fuel pump went out.
we got that replaced too, and the car runs great.
I haven't really experance what kind of power I got in the engine yet, because I found out my carb is hitting my intake manifold,
So I cant use my secondaries, until I raise the carb up another two inchs. (I beleive.)
later I hope to buy a Iroc Daytona hood, and then I'll worry about rasing the carb up later.
I still have to do something with my rear axle, Any ideas? Im still running stock gears in it. I dont know if I should replace the whole rear axle or just the gears.
another thing Im going to do is, make a custom gauge cluster, because my speedometer wont hook up to my 6 speed, so I cant tell how fast im going, and I want to make the car look pretty much all customized.
I have alot more plans to do, but I dont see it happening it all this year.
(Im still in highschool, but I work every day.)
So I guess we'll see what happens till then.

 

Well Im updating this thread, so far I haven't had any trouble with the vacuum secondary. when I would open up the secondary, it would lag for a second and go, but I put on a carb spacer because the carb was a square bore, and the intake is made for a spread bore. It did however, worked fine when I didnt have the spacer on. I just bolted the carb to the intake with a normal gasket, but there was too many things too close to each other, and there was a little screw that adjusted the choke idle speed, I had to turn it all the way in to get my secondary to open, but when I start my car, I wouldn't have a choke. the screw would hit against the second peice of the intake when I try go wide open throttle.

I haven't driven my car yet when I got the carb spacer on. surpisingly my air cleaner still fits under the hood, but by barely.

I don't beleive the cam I have is too big for the carb, or is it?

and I should also mension that I do have air conditioning still in my car. but I have a wire that connected on the air conditioner pump on the S belt line. because when I plug that wire back in, the car goes in a really low idle, and sounds really rough, and what makes this even worse is I feel the steering wheel, shift ****, and the gas pedal shake, and when I press on the gas, it would make a loud screeching noise in the Serpentine belt.

Than the car would start to over heat during when we are driving down the highway with it on.

any ideas?

 

I'm trying to imagine what may be hitting between the carb and intake, and the only thing I can think of is the divorced choke adapter. If you remove that thing and put the block-off plate on it, you shouldn't have any problem. The Holley should mount directly on the manifold with no interference and no adapters.

If the cam is too much for the carb, the intake is too little for the cam.

I'm not sure what the AC issue would be, but perhaps a compressor issue.

 

the a/c idle issue, is due to the extra compressor load on the engine. your car was originally fi so the computer compensated for it, u can buy a fast idle solenoind for your carb and wire it to the compressor to activate it while a/c is in use. as for the belt squealing, is it a serp belt setup now or v belt. may need adjusted or maybe a bad tensinor. could also be your compressor shooting the sh*ts and locking up intermittintly.

here is a acuator for the carb, you can search for a cheaper one.
https://www.vichubbard.com/auto-part...idle.html?js=y