Most of us with this engine just aren't satisfied and wonder what to get and how much it will cost.

 

im trying to get info also....its pretty hard eh?im also trying to replace my 305....not bad power...but its old and time for more power.

 

I'm probably a week out from finishing the swap from my 305TBI to a 385TBI. Course, I'll be using a Holley or 454 TBI unit with Haltech computer so it's a tad different from a straight up swap, but other than that it's pretty straightforward. Any questions just email me...

Steve

------------------
Steve's Trans Am Temple

 

I'm swapping a lt1 from a 93 z28, about 285 hp...and I'm not keeping anything about my 305 TBI

------------------
89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

I'm swapping a lt1 from a 93 z28, about 285 hp...and I'm not keeping anything about my 305 TBI

------------------
89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

I'm right in the middle of a 305 TBI/350 TPI swap. So far everything has gone fairly well (knock on wood). The only major PITA was replacing the engine mounts. You more or less have to taake the control arms off to access the bottom nuts. other then that make sure you read the article in the tech section about swapping in a TPI SD system. I can't tell you how much that has helped.

Parts that you will need:

1) 350 engine - duh.

2) Complete TPI setup - including matching computer, wiring harness and all sensors. I can't stress how important a complete system is. The last thing you want to do is go searcing for obsurce parts that were missing.

3) fuel pump - preferably a new walbro high pressure high volume pump, that way if you plan future mods you won't have to pull the gas tank all over again.

4) 350 knock sensor matching year of injection setup not the car.

5) New fuel lines from the chassis lines to the fuel rails. you might also want to replace the rear ones also while you have the tank out.

6) Possibly a junked dual fan setup not compleately nessacary but reccomended.

7) New collent and heater hoses.

8) make sure you have pleanty of all fluids as you will have to pretty much drain every system (except stering I think).

9) new engine mounts - might as well get those as long as the engine is out.

Thats all I can think of right now if you have any other questions please feel free to email me.

Jim

 

I'm looking for a 350 TPI to replace my 305 TBI with. Any suggestions to get them cheap but effective? How much would a new computer cost me? Should I start looking around for parts cars this weekend?

Standard tranny will bolt right up, correct? Model 700-something, stock auto

------------------
1992 Pontiac Firebird
- 5.0L V8 TBI
- Automatic Trans

[This message has been edited by One Eyed Jack (edited May 15, 2001).]

 

I went from 305tbi to a 350TPI. Lots of work. Luckily I had the donor car in the driveway. Then that motor died and I upgraded to a ZZ4TPI.

------------------
Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

 

I aslo swapped my 305TBI for a carbed 350 with the Performer RPM package. The swap is fairly easy, you'd only need to change the distributor and get another fuel pump.
that's it...

 

Okay I heard my friend's friend has a stock 350 for sale, $500. I'm gonna look at that unless my mom's friend has one cheaper.

------------------
1992 Pontiac Firebird
- 5.0L V8 TBI
- Automatic Trans

 

in the process of swapping 305 tbi to 350 tbi.
Using a 350 caprice crate motor with edelbock heads a 96 LT1 cam, edelbrock TBI manifold, 65# injectors and a GM cop car chip. Will upgrade induction later on to a carb manifold and maybe
SNFLU's TBI or a 2" TBI from another source along with a custom chip. Have tremec 5 speed on order.........bob

------------------
91 camaro RS L03 convert,
t-5, ultimate TBI mods,TBI spacer,SLP 1 5/8 headers,
3"cat back, 3.42 torsen posi,alston SFC's,Global West LCA relocation brackets, edelbrock STB
350 swap in progress

 

hey, I swapped an LT1 inplace of my TBI, but I got a question, is it any better? j/k of course, it is so much better now

------------------
-'92 RS with self-installed '95 LT1
-Heddman Headers
-TPIS throttle body airfoil
-MSD 6-AL Ignition
Kills
-'97 Mustang Cobra
-'98 V6 Camaro
-'89 5.0 ****stang
-'97 Sebring
-'96 ****stang Cobra

Losses
-'99 Mustang GT
-'96 Mustang Cobra
-'95 Z28 (good race)
-'96(?) Turbo Eclipse (d*mn good race, heavily modified)

 

I just changed the intake set-up and picked up 17hp 70tq. Just got back from a trip, Carson City, NV to San Berdo and got 32 mi. per gal. all this with 215000 mi.on the clock
http://24.1.139.249/images/122000/DCP_0108.JPG

------------------
Chronologically challenged. But still kicking!
'92 CAMARO RS
305 TBI 5/spd (now TPI)
B4C Alt.
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+/3200lbs.
SoCal Thirdgen F-Bodies

 

I did the swap to a LO5 truck or caprice engine , all said and done it came to a little under 2,300.

 

In the process of swapping 305tbi for a 350 carbed. The new motor is gonna have around 465-480hp at the crank. Next its getting it all to hook up. Its been a pain in the *** but mainly due to lagging of people im working with. Ive been without my camaro for like 3 and a half months now I miss it so so so much. But it will all be worth it when im done

 

Swap from L03 to 330hp vortec crage engine, total came to ~$3000 after everything (including tax and small parts).
I'm working on a tech article that will explain EVERYTHING that you need to remember when doing an engine swap into a L03 car.

------------------
, Jon (350 TBI!)
91 Red My website

 

what do you have to with wiring when you switch from a 305 tbi to a 350 carb.I was just curious to know what you need and what you dont need.

 

It all depends. If you plan on keeping the 02 sensor to help you tune the carb. Do you plan on running an intank fuel pump or a mechanical one? What about fan temp switch? Are you keeping the electric or going with a clutch fan? The basic way of going about installing a carb from TBI is this:
Buy carb, drag knuckles across floor, scratch head and arm pits, grunt, slap on carb, play with it till it "feels" right.
If you keep carb you are basically trashing the whole engine wiring harness and ecm.

------------------
, Jon (350 TBI!)
91 Red My website

 

Is the 305TBI to LT1 swap easy? Are there any sites out there documenting the swap?