What are the differances between the 305 TPI and the 350 TPI?

is it just injectors , knock sensor(and module)and programming?

So can I use a 305 TPI setup on a 350 by just changing the injectors, knock sensor/module and custom programming?

 

Isnt the 305 a Throttle Body Injection? (TBI)

 

mine is at present, but the 305 also came with TPI

 

Yes, its the same TPI set up for the 305/350 except for the injectors. Plus other items to the engine (sensors chip etc.).

 

thought so, thanks

 

But you CAN run a 350 TPI on 305 TPI programming and it will run fine.

 

No, you will need a new chip for the 350's larger fuel injectors. However it will use the same ECM from the 305.

 

I ran my 305 to 355 swap on the stock 305 programming with 24lb injectors (stock 19 programming) for 4 weeks before changing it to ARAP code. This is with MAF though. I'm not sure if it can be done with SD.

 

Yes, you ran for a few weeks but not reconmended for the long term with 305 Chip.

 

the 350 has different heads and larger pistons though right? the tpi intakes are the exact same also.

 

The Fact is the difference between the 305 TPI & 350 TPI is the 350 has more CUBIC INCHES and makes more Power even though both use the same TPI Intake (exceot FI;s) as the 305.
So that should be the end of this Post. :hail: :hail: The 350 TPI.

 

thank you very much for your praise of the 350 TPI.

To the man who said he thought all 305's were TBI doesnt hang around the board a lot. 305 came in many flavors such as LU5 cross fire (twin tbi), the infamous LG4 quadrajet carb, the better but still carbed L69 H.O. and then, King 305.. the TPI 305 and that came in two flavors.. 350 and "Peanut". You can run a 350 on 305 programing... You can also jump off a bridge... but, as with both, its not recomended.... Im sure someone will let there 350 chip go or you can get into making your own. The 350 DOES have different heads and larger pistons, because the bore is bigger. 350's bore and stroke are 4.00x3.48 while a 305's is 3.74x3.48. Larger bore=more ci=more power. The 350 is the worlds most widely used engine and the small block chevy can be found a number of cars, trucks, boats, even motorcycles.... as i digress... 305 tpi and 350 tpi intakes are the same... but dont confuse that with vette 350 tip and fbody 350 tpi... different EGR and fuel rails.