i'm getting a 350 tbi engine without the intake and tb unit. will the tb and the intake from the 305 work good with the 350 engine/

 

Yes, everything is compatable minus knock sensor and stock tune. You will also need larger injectors most likely.

 

also would i need to find a computer from a trans am or camaro that has the 350tbi with like power windows and the same stuff my car has?

 

No camaro ever came with a 350TBI. You can keep your computer as long as you chance the chip. Your windows and everything else will still work fine.

 

ok sounds easy.

what chip should i get?

 

You really need a custom chip. But to get the car to run you can use a caprice cop car chip.

 

alright i have just one more question. with the injector what size should i switch to?


thanks for your time and answering my questions i appriciate it.

 

You should go with injectors off of a 350 TBI car. So those can be found on trucks and LO5 equipt B-bodies.

 

If you don't want to have to go through the expense of buying a new chip you can also just get a computer from like an 87 chevy truck with the 350 tbi setup.

 

Just outta curiousity, what is the 350 out of?

Also, you will need to change your esc module as well.

 

350 is brand new.. i'm ordering one from auto zone.. on the computer they have 3.1, L03, L05 for my 89 trans am.

 

well i just found out some very depressing news.

LO5- 210hp 300lbs torque
LO3- 170hp 285lbs torque

i have an lt1 cam, headers, open element. them mods are worth 60hp

so that makes my 305 250hp. if i put the headers on the 350 it will have like 240hp. why would i down grade my hp? could i put my LT1 cam in the 350 or is the stock cam better then the lt1 cam?

 

The LT1 cam will work in the engine, but even the LT1 cam is mild by 350 standards.

One question though, since when did the LO3 put out 285 lb/ft? That number is about 20 lbs too much.

Have you purchases this engine yet? If not, I can point you in a better direction, if so, how much did you pay?

 

no i didn't buy it yet. the engine was $924.99. i don't want to buy something much more money then that though.i was just going to rebuild the 305 but then i saw it would be like 600 or so to rebuild it and then i looked at motors and saw that the 350 was only 900. but if i'm going to have more hp with the 305 i might as well just keep that. what motor are you thinkin about? and whats the price?

 

Well the motor that I'm going with is $2,300 shipped to your door putting out a dynoed proven 317 HP and 399 lb/ft.

http://www.goautocenter.com/300hp_tpi_1987-89.htm

However, if $900 is your upper limit, I would still suggest going with the 350, because it gives you a better and newer platform to build on. You don't have to make more power now, but later down the road, you'll surpass the 305 and still have room to grow.

If I were you, I would purchase that LO5 and put a new cam in before you install it. I would then find out what is the limit of the springs on the heads and if you have room, I would use the cam in the prescribed link or purchase a cam from Comps or Crane.

So by upgrading something as simple as the cam and combining that with the headers you have you should be happy with the results and you still have room to improve, whether it be a full cat-back exhaust, heads, Holley TBI and aluminum intake manifold.

I hope this helps. Oh, and if you get a warrenty, that's even better, but you need to make sure you read it, because throwing a different cam in will probably void your warrenty.

 

i have the LO5, see mods, and that dyno number is with out the heads and 6AL. so LT1 cam is the biggest the heads can handle. so now that i have my new heads on, im gonna get a XE cam. and my best quarter was 14.975. i could of got better by shifting at a lower rpm but i didnt know my power band. i dynoed after that and now know where to shift. and if u need a caprice chip, u can mail me a chip with return posted paid (if thats possible) and ill burn u one.

 

350TBI are good for high to mid 14's stock in an f-body....

My 350TBI i had was all worn out with 190K miles but with an awsome tune up nad 3,73 gear's in riped of 14.86@95.78mph i am sure with a fresh 350TBI and soem nice 3,73's yopu could hit maybe 14.20's - 13.80's.....

But your result's might vary depending on the 350 and the gear's you pluse your size your going to run...

I personally am not a 350chevy fan Thats why when the 350TPI blew up at 37,000miles then they threw the 350TBI in it then bought it.

it lived till 190K miles buy only 25,000miles where mt miles....

but now it's getting a 540Hp 406 TBI....

me and 350's don't get along.......

so i wnet with a 400 on my TBI swap....

was going to the nestalga of it pluse an engine that will last mr more then 40,000 miles.....

i've had several new 350's non of them lasted over 40k miles.....

 

I have a 350TBI in my 89 Camaro currently that me and my brother put in two years ago and it runs great. I have a few problems but its totally another issue. Point is that I kept my same computer in it changed a chip, injectors, knock sensor, and pock sensor...I dont know what it does but I changed it. Now it runs great and it has great torqe. I will be upgrading soon to get more HP but before that it will need some paint. If anyone has ?'s about car audio let me know. I am not a complete expert but I know enough to get my car sounding like a movie theater.

 

.

 

if you want all and all go power get the 400 if you some go on a buget i'd get a 350....

if you wanted preformance engine on a buget i'd 383...

350 cheaping it...

383 power on a buget...

400 power/racer...

400 is a performer But it take's money to build and maintain them....

383 is a performer takes money to build but cheap to run...

350 not real racey but snappy cheap to build cheap to run...

nice 350 $1,500-$2,000.

nice 383 $2,000-$3,500.

nice 400 $2,500-$4,500.


.....:hail:..... good luck man I hope this info helpped you some....

 

.

 

You can TBI the 383 and the 400 My 400 is TBIed........

I spent $4,250 on my 400 made it a 406....


ENGINE:
400Sbc

SPECS:
400Sbc .030over bore, 10.5:1,292dur.575lift,Dart head’s, ported & polished, 2-670cfm TB's Holley TBI setup.

DYNO:
540hp@6,500rpm.
620ftlbTorque@5,000rpm.

POWER AT FLY WHEEL.

That engine is TBI and only took $4,250 to build now you might not want to go that racey.

Personally I wouldn't bother with a 350inless you want a low buck beater.........

 

.

 

I got the block at the Junk yard for $633.00

I the 4x2 edelbrock not riase intake. #3554 in think.

to run the number's i am you have to run 2- TBI's but 1 TBI unit with the spacer's both of them.

you can get up to 380-420hp.

I think the 383 is ALright but i'd rather have the 406.

Because of the whole Tran's am with the big bad 6.6L.

It was more of a haritage thing for me is why i when with the 400.

That and I have had beyand bad luck with 350's blowing up so i'm a bit against the 383's unless it's a Mopar.

but my MPG's are going to range from 13mpg - 3mpg
depending on who is driving.....

A 10 Bolter will hold it But not for very long.......
I;'m getting the moser9" rear end. But i might break the 406 in with the 7.5" rear edn for 4,000-6,000 miles.

but i'll swap it out for sure before i hammer on it.

I can give you the Build list for thw whole car if you would like??

 

What about a 383 w/23 degree heads? That would be a good platform no? GTA, were the 350 blocks you've been blowing up have 4 bolt mains?

 

If you are upgrading to a 350, you will definitely need the 350 knock sensor and the overlooked 350 spark control module. I put a 350 in with 2.02 heads and the spark wasn't enough for it. Everytime I floored it, the ecm would cause the car to run in a sort of limp mode. HP and torque dramatically reduced until I shut the car off to reset everything for about 10 seconds. So I swapped in a 350 spark control module as well and it's been running beautifully. The 350 caprice cop cars are perfect if you can find one in a junkyard.