harness question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mikewb · 03-17-2011, 04:08 PM

am going to put a 5.3 in my 94 silverado. But was wondering if the motor will run using the factory computer or if i need the one that belongs to that motor.

**Clyde65** · 03-17-2011, 04:14 PM

you need the one that goes with the motor, also you will need to have the VATS taken off, vehicle Anti-Theft System before it will run more than 3 seconds.

Mikewb · 03-17-2011, 04:22 PM

ok will the factory fuel pump work for this? and any other info or advice on what all ill need to do.

**Clyde65** · 03-17-2011, 06:22 PM

I dont think it will, the 94 had the old LT motor in there and I believe it required lower fuel pressure similar to the GEN I motors, you need one that can supply 55-58 PSI constantly. if you have one that pushes more, then a fuel pressure regulator will be needed.

Mikewb · 03-17-2011, 07:13 PM

is there a certain year motor that is higher horse? or they basically the same?

clinebarger · 03-17-2011, 10:36 PM

Quote:

Originally Posted by Mikewb

is there a certain year motor that is higher horse? or they basically the same?

A 94-96 B-body (Caprice, Impala SS, Roadmaster) fuel pump will fit your sender & deliver the correct pressure & volume.

Mikewb · 03-18-2011, 12:42 PM

ok thanks

03-17-2011, 04:08 PM	#1
Mikewb Registered User Join Date: Feb 2009 Location: Tulsa,ok Posts: 149	harness question am going to put a 5.3 in my 94 silverado. But was wondering if the motor will run using the factory computer or if i need the one that belongs to that motor.

03-17-2011, 04:14 PM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: harness question you need the one that goes with the motor, also you will need to have the VATS taken off, vehicle Anti-Theft System before it will run more than 3 seconds. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!* Last edited by Clyde65; 03-17-2011 at 04:14 PM.

03-17-2011, 04:22 PM	#3
Mikewb Registered User Join Date: Feb 2009 Location: Tulsa,ok Posts: 149	Re: harness question ok will the factory fuel pump work for this? and any other info or advice on what all ill need to do.

03-17-2011, 06:22 PM	#4
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: harness question I dont think it will, the 94 had the old LT motor in there and I believe it required lower fuel pressure similar to the GEN I motors, you need one that can supply 55-58 PSI constantly. if you have one that pushes more, then a fuel pressure regulator will be needed. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

03-17-2011, 07:13 PM	#5
Mikewb Registered User Join Date: Feb 2009 Location: Tulsa,ok Posts: 149	Re: harness question is there a certain year motor that is higher horse? or they basically the same?

03-18-2011, 12:42 PM	#7
Mikewb Registered User Join Date: Feb 2009 Location: Tulsa,ok Posts: 149	Re: harness question ok thanks



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