fuel injection on 1972 400 chev

[Guest Anonymous]

injection help required. i am looking at fuel injecting my rebuilt 1972 400 chev that is in my 71 240Z. any ideas or have one of the members done this ?

[Guest greimann]

One of the most cost effective EFI systems is the Holley Commander 950 TBI. It will bolt directly to a square bore 4 barrel manifold and give you most of the benefits of EFI with minimal hassle and cash outlay. They are about $1400 USD. The stacking height is shorter than a carburetor so if hood clearance is a problem, this will work great. Holley also has a port injection system for more dinero.

[DavyZ]

Greimann is correct. However, if you get a good book on fuel injection, you can actually make an EFI system yourself. The total cost will be similar to the Holley, but the system will be unique. The biggest cost of the whole shebang is the SOFTWARE or ENGINE MANAGEMENT system you will run. Just FYI.

 

Davy

[strotter]

Both the above posts are correct. Another option is to find a late model donor car and strip the f.i. system off. The cheapest approach, money-wise, but probably the most expensive time-wise. Advantages: parts availability, lots of good documentation, lots of online and hardcopy help available. Disadvantages: a fairly steep learning curve, some parts are motor-specific (knock sensors, ESC's), wiring can be a problem (i.e., you don't have a tranny w/ a speed sensor you got to improvise, solid lifters confuse the knock sensor, so on), there are some subtleties that might get'cha (such as the GM MAP sensor needs to be oriented a certain way to read correctly), so on. JTR has a book about swapping in GM-type f.i. systems, and they offer a few parts to make it easier.