? 87 350 fi engine - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigblock79 · 05-18-2007, 07:52 PM

can i take a 87 chevy truck 350 with FI. and pull that intake off and put a 4 bbl. intake on it. will it work

Eyegore · 05-18-2007, 08:14 PM

Pretty sure it will, I believe you have electric fuel pumps in the tank, not sure if that will interfere somehow.

Srubydo1986 · 05-18-2007, 08:56 PM

yes you can iv done it. edelbrock make the intake it 209.oo with out the egr setup. here a picture of it on the block.

lurch115 · 05-18-2007, 09:31 PM

yes you can, but you need a vacuum advance distributor, and you'll have issues with the electric fuel pump (or pumps) that are in the tank because they run higher pressure that a mechanical pump....i just got rid of a truck that the p.o. had done that too....

87 STEPPER · 05-19-2007, 06:52 AM

Hey guys i dont think he talking about doing it to an '87 truck i think he wants to put a '87 engine into an older truck but convert it from FI to a CARB.

If so you can do it but ya may want to change to cam and run something that will match up closer to the carb and intake combo cuz the FI cam is not gonna produce alot of vacuum.

And you can run a electronic distributor as well or any other type you want.

Srubydo1986 · 05-19-2007, 09:19 AM

Yes like i did i have a 1989 gmc jimmy motor that was tbi in to my 1986 which was cabarated.

I didnt change the cam and the truck runs great. i change the distributor ofcourse but thats all.

Like i stated before the main thing is the special intake. because of the catty cornered bolt aroung the carb area you need that intake. I got mine from edelbrock and the cost is 209.00.

hope this all helped Also i put v belt on theengine wish i had a serpintine setup.

**N2TRUX** · 05-19-2007, 09:27 AM

Not trying to be an @ss, but why would you want to?

Jonboy · 05-19-2007, 10:05 AM

If you are going to put an aluminum intake on, an earlier intake can be used by slotting the 4 center holes. It would work for an iron intake too, but would take forever to slot the holes.

gotit · 05-19-2007, 02:02 PM

thats right, been there! four middle holes have to be drilled,

bigblock79 · 05-19-2007, 03:16 PM

i bought a 87 short bed and i am going to use the bed on my 79 bb truck and thought about the 350 in my 79 dd to replace the weak 305 so i need to change cam and intake thanks

gotit · 05-19-2007, 03:45 PM

Quote:

Originally Posted by bigblock79

i bought a 87 short bed and i am going to use the bed on my 79 bb truck and thought about the 350 in my 79 dd to replace the weak 305 so i need to change cam and intake thanks

why would you have to change the cam?

bigblock79 · 05-19-2007, 11:59 PM

change the cam for a little better sound

Srubydo1986 · 05-20-2007, 11:06 AM

Quote:

Originally Posted by N2TRUX

Not trying to be an @ss, but why would you want to?

I will agree with gas prices going up after my conversion i wish i still had the stock tbi setup. but i dont and dont really know whats all involved in make a non tbi truck a tbi.

kevinr1970 · 05-21-2007, 02:41 AM

Fuel pump?
The TBI engine won't have a provision for the mechanical pump.

Big Bobby O · 05-21-2007, 07:38 AM

Do you still have the parts truck? The whole parts truck? Why not use the wiring harness and the computer and run the TBI? You might be able to use the tank with the internal fuel pump.

I have an 88 with a rotted frame and I'm considering doing the same converson.

bigblock79 · 05-21-2007, 03:46 PM

i got a 79 that i want to put it in and though of doing it that why how hard would that be

87 STEPPER · 05-21-2007, 03:57 PM

Actually that would be the best and easiest way to do it!

If you still have the complete donor truck then it's just a matter of removing the complete wiring harnass and engine and fuel lines and tank and installing it all in your '79.

It's alot of work but not that hard.

Plus you have a low maintenance & high reliability of a modern FI system in your truck.

kevinr1970 · 05-21-2007, 04:33 PM

Its not even the complete harness as the ECM(PCM?) is on a stand alone harness I THINK.
Where's Russell when you need him...

Quote:

Originally Posted by 87 STEPPER

Actually that would be the best and easiest way to do it!

If you still have the complete donor truck then it's just a matter of removing the complete wiring harnass and engine and fuel lines and tank and installing it all in your '79.

It's alot of work but not that hard.

Plus you have a low maintenance & high reliability of a modern FI system in your truck.

bigblock79 · 05-21-2007, 06:00 PM

thanks the 87 does have 2 tanks and the 79 only has one could i do it and keep the one tank

**Captkaos** · 05-21-2007, 06:59 PM

They are "slightly" integrated for ground and power I think, but it wouldn't be too hard to pull it.

You can run the single tank directly to the TBI and bypass the fuel selector to use just one tank.

gotit · 05-26-2007, 02:38 PM

i took the engine harness off a 90 burban and plugged it in to my 86. i did have to splice into some of the wires. i have dual tanks, and since i did not have the factory dual tank selector harness. i had to run wires from my fuel pumps and use a toggle switch to turn left or right pump on, to switch the tanks i used my factory switch. if you can get it done tbi is a great running set up.

bigblock79 · 05-26-2007, 10:47 PM

thanks i might have to try it

68K20 x Drill · 05-26-2007, 11:39 PM

Quote:

Originally Posted by kevinr1970

Fuel pump?
The TBI engine won't have a provision for the mechanical pump.

No provision = blanking plate in place of.

bigblock79 · 05-27-2007, 09:43 AM

it got a block off plate on it

kevinr1970 · 05-27-2007, 10:34 PM

Quote:

Originally Posted by 68K20 x Drill

No provision = blanking plate in place of.

?
He asked if it could be done, I was just pointing out that the engine will have no way to run the mechanical pump; you will need to come up with an alternative (electric) fuel pump.

05-18-2007, 07:52 PM	#1
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	? 87 350 fi engine can i take a 87 chevy truck 350 with FI. and pull that intake off and put a 4 bbl. intake on it. will it work __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-18-2007, 08:14 PM	#2
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: ? 87 350 fi engin Pretty sure it will, I believe you have electric fuel pumps in the tank, not sure if that will interfere somehow. __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

05-18-2007, 08:56 PM	#3
Srubydo1986 The Crazy Machanic Join Date: Jan 2007 Location: Nokesville Va Posts: 1,437	Re: ? 87 350 fi engin yes you can iv done it. edelbrock make the intake it 209.oo with out the egr setup. here a picture of it on the block. __________________ 1986 Sliverado longbed 400 small block mean as hell, 700r4 trans (5 speed coming one day) 1970 chevelle 2dr sedan Latest update June 24 2007. *1957 4 door stationwagon - pink all original needing a good restore (body great, floors bad) newest additions 1965 shortbed fleet great granddads. Been told im nuts to bring it back from the dead (still going to happen) plans-all stock with a turbo 292 inline 3 speed column shift. and thats it big block 427 and 5 speed trans and ford 9 inch theyhave no home yet thinking what to put them in and a 79 c60 trash truck um no idea i have one

05-18-2007, 09:31 PM	#4
lurch115 Registered User Join Date: Oct 2006 Location: iowa Posts: 722	Re: ? 87 350 fi engin yes you can, but you need a vacuum advance distributor, and you'll have issues with the electric fuel pump (or pumps) that are in the tank because they run higher pressure that a mechanical pump....i just got rid of a truck that the p.o. had done that too.... __________________ "Horsepower is how fast you hit the wall, torque is how far you carry the wall with you." '84 chevy half ton short box 2wd, 67,000 actual miles '03 chevy 1500 HD crew cab 4x4 standard box, 6.0L

05-19-2007, 06:52 AM	#5
87 STEPPER STILL PLAYS WITH TRUX Join Date: Nov 2002 Location: Melbourne, Fla. Posts: 2,764	Re: ? 87 350 fi engin Hey guys i dont think he talking about doing it to an '87 truck i think he wants to put a '87 engine into an older truck but convert it from FI to a CARB. If so you can do it but ya may want to change to cam and run something that will match up closer to the carb and intake combo cuz the FI cam is not gonna produce alot of vacuum. And you can run a electronic distributor as well or any other type you want. __________________ ~~Bruce~~ MY 87 STEPPER MY 99 2D/WD TAHOE

05-19-2007, 09:19 AM	#6
Srubydo1986 The Crazy Machanic Join Date: Jan 2007 Location: Nokesville Va Posts: 1,437	Re: ? 87 350 fi engin Yes like i did i have a 1989 gmc jimmy motor that was tbi in to my 1986 which was cabarated. I didnt change the cam and the truck runs great. i change the distributor ofcourse but thats all. Like i stated before the main thing is the special intake. because of the catty cornered bolt aroung the carb area you need that intake. I got mine from edelbrock and the cost is 209.00. hope this all helped Also i put v belt on theengine wish i had a serpintine setup. __________________ 1986 Sliverado longbed 400 small block mean as hell, 700r4 trans (5 speed coming one day) 1970 chevelle 2dr sedan Latest update June 24 2007. *1957 4 door stationwagon - pink all original needing a good restore (body great, floors bad) newest additions 1965 shortbed fleet great granddads. Been told im nuts to bring it back from the dead (still going to happen) plans-all stock with a turbo 292 inline 3 speed column shift. and thats it big block 427 and 5 speed trans and ford 9 inch theyhave no home yet thinking what to put them in and a 79 c60 trash truck um no idea i have one

05-19-2007, 09:27 AM	#7
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: ? 87 350 fi engine Not trying to be an @ss, but why would you want to? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

05-19-2007, 10:05 AM	#8
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: ? 87 350 fi engine If you are going to put an aluminum intake on, an earlier intake can be used by slotting the 4 center holes. It would work for an iron intake too, but would take forever to slot the holes.

05-19-2007, 02:02 PM	#9
gotit Registered User Join Date: Feb 2006 Location: wichita falls, texas Posts: 20	Re: ? 87 350 fi engine thats right, been there! four middle holes have to be drilled,

05-19-2007, 03:16 PM	#10
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine i bought a 87 short bed and i am going to use the bed on my 79 bb truck and thought about the 350 in my 79 dd to replace the weak 305 so i need to change cam and intake thanks __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-19-2007, 11:59 PM	#12
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine change the cam for a little better sound __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-21-2007, 02:41 AM	#14
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Re: ? 87 350 fi engine Fuel pump? The TBI engine won't have a provision for the mechanical pump. __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)

05-21-2007, 07:38 AM	#15
Big Bobby O Registered User Join Date: Mar 2006 Location: Southern Ct Posts: 6	Re: ? 87 350 fi engine Do you still have the parts truck? The whole parts truck? Why not use the wiring harness and the computer and run the TBI? You might be able to use the tank with the internal fuel pump. I have an 88 with a rotted frame and I'm considering doing the same converson.

05-21-2007, 03:46 PM	#16
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine i got a 79 that i want to put it in and though of doing it that why how hard would that be __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-21-2007, 03:57 PM	#17
87 STEPPER STILL PLAYS WITH TRUX Join Date: Nov 2002 Location: Melbourne, Fla. Posts: 2,764	Re: ? 87 350 fi engine Actually that would be the best and easiest way to do it! If you still have the complete donor truck then it's just a matter of removing the complete wiring harnass and engine and fuel lines and tank and installing it all in your '79. It's alot of work but not that hard. Plus you have a low maintenance & high reliability of a modern FI system in your truck. __________________ ~~Bruce~~ MY 87 STEPPER MY 99 2D/WD TAHOE



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05-21-2007, 06:00 PM	#19
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine thanks the 87 does have 2 tanks and the 79 only has one could i do it and keep the one tank __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-21-2007, 06:59 PM	#20
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: ? 87 350 fi engine They are "slightly" integrated for ground and power I think, but it wouldn't be too hard to pull it. You can run the single tank directly to the TBI and bypass the fuel selector to use just one tank. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com Last edited by Captkaos; 05-21-2007 at 06:59 PM.

05-26-2007, 02:38 PM	#21
gotit Registered User Join Date: Feb 2006 Location: wichita falls, texas Posts: 20	Re: ? 87 350 fi engine i took the engine harness off a 90 burban and plugged it in to my 86. i did have to splice into some of the wires. i have dual tanks, and since i did not have the factory dual tank selector harness. i had to run wires from my fuel pumps and use a toggle switch to turn left or right pump on, to switch the tanks i used my factory switch. if you can get it done tbi is a great running set up. __________________ [SIZE="6 Code: HTML Code: [PHP][/PHP] "][/SIZE]

05-26-2007, 10:47 PM	#22
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine thanks i might have to try it __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-27-2007, 09:43 AM	#24
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: ? 87 350 fi engine it got a block off plate on it __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

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