318 2BBL EFI Recommendations?

[videoword]

I'm thinking strongly about converting my '68 318 (automatic transmission) to EFI. Not having major issues with carb or anything, just looking for better gas mileage and performance.

Can I slap a Holley Sniper on there? A FiTech? Are there any kits that fit?

Thanks.

 

[1967coronet440]

Holley sniper/ fitech will both work. You know summit has a self learning efi kit out now and it’s very cheap $500 if I remember correctly. I would not hesitate to use it you know the customer service you’re going to get buying anything from summit. It’s not as simple as a slap on and go with any of these. Will need to run a fuel return line, most likely an electric pump as well. Do some homework on the systems.

 

[Don Frelier]

When looking for a system keep in mind that they work best when they can control the timing.
You also need to install an O2 sensor on the exhaust and a coolant temperature sensor.
The fuel pump and lines are the most work/skills required. Don't expect huge gains in mileage, maybe 2-3 gpm if your car runs well today.

 

[videoword]

Interesting info re sensors - those come with the kits, or are they a separate thing?

Only kit I can find with direct application is: https://www.edelbrock.com/pro-flo-4-efi-kit-for-big-block-chrysler-318-360-c-i-d-engines-35900.html

That the best (easiest?) way to go? Or are people going another route?

 

[BeepBeepRR]

https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/

 

[videoword]

https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/

You talking this one: https://www.holley.com/products/fue...l_master_kits_with_fuel_system/parts/550-851K

Because it only lists compatibility with Fords - or is there some way to adapt it?

 

[BeepBeepRR]

I would assume as long as your base on your old carb looks like this you can use it. Im no expert might want to call Holley about the correct application.

 

[BeepBeepRR]

Found this. Looks way more complicated but its a mopar Fuel injection kit. https://www.affordable-fuel-injection.com/product/mopar-tbi-complete-system/

 

[Don Frelier]

I believe almost all the kits are for 4-Barrel carb replacement. You will likely need to change the intake manifold.

 

[videoword]

Found this. Looks way more complicated but its a mopar Fuel injection kit. https://www.affordable-fuel-injection.com/product/mopar-tbi-complete-system/

Hey, that's pretty cool! And cheap... Definitely a contender - would save me having get a new manifold.

I believe almost all the kits are for 4-Barrel carb replacement. You will likely need to change the intake manifold.

That makes sense. I'll have to look into that as well. Probably could use a new manifold anyways. The Edelbrock on comes with it, so would be easiest.

 

[BeepBeepRR]

I assume its a LA 318 and not the Poly. You should be able to pick up a 318 4 bbl intake on the cheap.

 

[1967coronet440]

I would give this system serious consideration

https://www.summitracing.com/parts/sum-240505/

 

[1967coronet440]

This is also a good deal



https://www.summitracing.com/parts/fif-31003/

 

[videoword]

This is also a good deal
https://www.summitracing.com/parts/fif-31003/

The moral of the story here being that I should probably get myself a 4 barrel intake manifold, yeah?

I just had it in my head that it would hurt my gas mileage. But someone mentioned to me that since it's EFI it probably won't change the mileage much.

 

[wish4hemi]

Holley does offer 2-barrel EFI: https://www.holley.com/brands/holle...s/fuel_injection/sniper_efi/sniper_2300_2bbl/

Edit: Doh. Already posted above.

 

[videoword]

Holley does offer 2-barrel EFI: https://www.holley.com/brands/holle...s/fuel_injection/sniper_efi/sniper_2300_2bbl/

Edit: Doh. Already posted above.

Also came across this one from Holley, which seems like it might fit a 318 more easily? Sniper seems like it might need some kind of conversion plate to get it to fit (since mopar fitment isn't listed anywhere)?

https://www.holley.com/products/fue...enger_efi/avenger_2bbl_tbi_kits/parts/550-200

 

[Stephen Hotz]

There is a bolt on adapter plate that allows you to use either the Holley or fitech 2v on the stock intake, simular to the spreadbore to square bore adapter, you get a pressure regulator with holley/fitech but not with Summit. Cheapest on the Summit would be the corvette regulator that fits by the tank so less cost as you only run one line to the front of the car. Just tip of the iceberg.

 

[Montclaire]

While you can't modify the programming, Chrysler had factory TBI on LA small blocks in the 80s/90s. If you want cheap fuel injection on a stock motor, it's an option.