[dermotor63]

I have a 1988 EFI 460 in an F350. I was told edelbrock heads and manifolds will not work on this block. Any body know if this is true. If so what are the differences


Thanks

 

[The Mad Porter]

I have a 1988 EFI 460 in an F350. I was told edelbrock heads and manifolds will not work on this block. Any body know if this is true. If so what are the differences


Thanks

The eddy top end package will physically bolt on yes.

With the OEM EFI pistons you run a small risk of piston to valve contact with the larger intake valves in the eddy heads if you were to use the small chamber heads where the chamber is not as deep. Large chamber heads not so much by not exactly right either.

Change pistons to allow a build to suit your needs.

All passenger car and truck blocks are the same with regard to cylinder head acceptance excepting the boss 9.

What is the end goal here?







Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
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R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

My efi is dumping fuel in the engine, replaced about everything and still doing it. So was exploring options. Like heads and manifold or changing to Holley HP efi system. Still trying to figure it out. But not holding my breath.

 

[The Mad Porter]

Did you replace the pressure regulator?






Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

i have replaced ecu, fuel pressure regulator, injectors, 02 sensor, MAP sensor, and TFI. I gave up took it to a mechanic friend, after a month he gave up. Apparently it is something weird, had a person suggest today that the injector have a bad ground. The rub is I love the truck and only has 100,000 miles. so I'm fairly sure it's a wiring issue.

 

[The Mad Porter]

The injectors are powered ignition on and grounded via the ECM to actuate.

I would certainly double check all of your grounds AND vacuum lines.

Coolant temp sensor as well.

Any KOEO or KOER codes?




Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[The Mad Porter]

In 89 it was either a C6 or manual transmission so switching to a carb and std dizzy & ignition system is pretty straight forward.

We've helped several client go that direction after they gave up on the EEC IV EFI.







Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

water temp sensor has also been replaced. It seems as though the injectors are just open. Which is why I've also been looking at Holley ECU conversions.

 

[dermotor63]

Also no codes.

 

[dermotor63]

I haven't completely given up but getting close to punting. I've got a 460PI in my 58 and it's pretty straight forward. Considering my age and years of doing this I getting pretty tired of fighting the hard problems.

 

[ArnoldRC]

Any exhaust leaks?

 

[The Mad Porter]

With the ignition off and then on I would check to see if the injector harness is shorted to ground on one side or both.

You can also check each injector plug to see if the plug is grounded with the engine not running but key on.

Remember when ignition is on the injectors have batt+ and they are batch grounded by the ecm.







Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

No exhaust leaks. I will check that out.

 

[dermotor63]

Here's a crazy one. I found a couple of vacuum lines messed up, So I repaired. For giggles I used a hand held vacuum pump connected to the MAP sensor and a vacuum gauge connect to the map sensor hose. started engine pumped to 15" of water column, it idled smooth as glass manifold vacuum read 18" of water column. So thought ok Map sensor is a little out of range. so changed it. Started it up ran like crap. so did the vacuum pump thing again idled fine at 15" manifold read 18". so pumped up to 18" started running like crap. Now I'm really confused. any thoughts?

 

[The Mad Porter]

Disconnect the battery to erase adaptive learning values. Hold brakes for 30 seconds.

Reconnect the battery, hook the map directly to vacuum and see if the engine will sort itself out after a few moments.

If not I suspect the map sensor is a problem.

15" runs richer than 18"

What is your fuel pressure with and with out vac hooked to the FPR?





Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

Tried disconnecting the battery. It did the same thing with 2 different map sensors. Not sure why but when it is running like crap it is missing on #3 cylinder. I'm about ready to shoot this thing with a 12 gauge

 

[dermotor63]

Any way a valve could cause this?

 

[The Mad Porter]

Tried disconnecting the battery. It did the same thing with 2 different map sensors. Not sure why but when it is running like crap it is missing on #3 cylinder. I'm about ready to shoot this thing with a 12 gauge

Trade the injector from cyl 3 to 4 and see if the problem moves with your injector.

You are missing something.

#3 cranking psi the same as others?







Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Parkland Auto Machine

 

[dermotor63]

going back through this whole thing in my head. when I took it in to my friend it was running fine no misses, it was running rich. He also found the fuel regulator was bad and the water temp sensor was throwing a code. I had a set of injectors i told him to put in. when I brought it home it barely ran missing and sputtering. I am beginning to believe the injectors i bought were wrong.it is the only thing that makes any sense.

 

[The Mad Porter]

going back through this whole thing in my head. when I took it in to my friend it was running fine no misses, it was running rich. He also found the fuel regulator was bad and the water temp sensor was throwing a code. I had a set of injectors i told him to put in. when I brought it home it barely ran missing and sputtering. I am beginning to believe the injectors i bought were wrong.it is the only thing that makes any sense.

Get a matched set of 24# injectors

Accel is fine.

https://www.summitracing.com/parts/acc-150824/make/ford