TBI in a 67 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

derek6787 · 03-04-2008, 09:46 AM

Hey guys I'm fixing to try to tackle something that I have no idea how to do. I pulled the 283 4speed out of my 67 shortbed today and am going to try to put a TBI 4.3L 5speed out of a 1988 to 1993 chevy pickup. Has anyone tried this or know how bad the wiring is going to be? Any comments pointers or suggestions would be highly appreciated. Thanks Derek

Andy4639 · 03-07-2008, 12:08 AM

If you are pulling everything out of the truck then it should be a simple task.
Things to check for.
Fuel tank will need a return line with electric fuel pump. Stock tank doesn't have this. Will need to have resister wire took out of the electrical system for cranking. You will need extra senor's for the oil, temp to hook up to the gauges. The computer will need the ones that are in the block now. Depending on the transmission you will need a convertor to the old speedo.

89 crew · 03-07-2008, 01:28 AM

read this http://www.painlessperformance.com/M...Supplement.pdf
It is an after market loom for that engine. It will tell what sensors are needed and where. Should help figure everything out.

dieselarmy13 · 03-07-2008, 04:40 AM

I understand the concept of 'use whatever's layin around', but a 4.3? Really? Why?

jgrh64 · 03-08-2008, 12:31 AM

A 4.3 is still a small block just 2 less cylinders, strong runner ,easier to get parts together than a straight 6

PanelDeland · 03-08-2008, 05:29 AM

You might pick up some info from member shifty.His build is with a different engine but it may help you determine what pitfalls to avoid.Look him up in the members list,he has the info listed in his siggy.

**clay68c10** · 03-08-2008, 05:48 AM

From the electrical side of things, it should be easy. There's a few of us running TBI on V8's. The fuel system isn't too big of a deal either, you just have to run a return line.
The more parts you can get off the donor, the better. Try to get ALL the engine wiring and whatever runs to the computer. Grab the voltage distribution block and all the relays off the firewall too. Also get all the fuel line you can, it's easier to toss stuff later if you don't need it than it is to go find some unique fitting or bracket.

03-04-2008, 09:46 AM	#1
derek6787 Backwoods Body Join Date: Jul 2007 Location: Missouri Posts: 146	TBI in a 67 Hey guys I'm fixing to try to tackle something that I have no idea how to do. I pulled the 283 4speed out of my 67 shortbed today and am going to try to put a TBI 4.3L 5speed out of a 1988 to 1993 chevy pickup. Has anyone tried this or know how bad the wiring is going to be? Any comments pointers or suggestions would be highly appreciated. Thanks Derek

03-07-2008, 12:08 AM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: TBI in a 67 If you are pulling everything out of the truck then it should be a simple task. Things to check for. Fuel tank will need a return line with electric fuel pump. Stock tank doesn't have this. Will need to have resister wire took out of the electrical system for cranking. You will need extra senor's for the oil, temp to hook up to the gauges. The computer will need the ones that are in the block now. Depending on the transmission you will need a convertor to the old speedo. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

03-07-2008, 01:28 AM	#3
89 crew Registered User Join Date: Mar 2006 Location: Kansas Posts: 865	Re: TBI in a 67 read this http://www.painlessperformance.com/M...Supplement.pdf It is an after market loom for that engine. It will tell what sensors are needed and where. Should help figure everything out.

03-07-2008, 04:40 AM	#4
dieselarmy13 Phone's ringin Dude. Join Date: Mar 2007 Location: Colorado Springs Posts: 1,426	Re: TBI in a 67 I understand the concept of 'use whatever's layin around', but a 4.3? Really? Why? __________________ I pitty the fool with only two headlights!! 2003 SILVERADO SS--THE NEW GIRL 1972 GMC--THE OLD GIRL

03-08-2008, 12:31 AM	#5
jgrh64 Prestige member Old Farts Club Join Date: Nov 2005 Location: Cleveland Posts: 502	Re: TBI in a 67 A 4.3 is still a small block just 2 less cylinders, strong runner ,easier to get parts together than a straight 6 __________________ Hey sombodys gotta do it!

03-08-2008, 05:29 AM	#6
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: TBI in a 67 You might pick up some info from member shifty.His build is with a different engine but it may help you determine what pitfalls to avoid.Look him up in the members list,he has the info listed in his siggy. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

03-08-2008, 05:48 AM	#7
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,979	Re: TBI in a 67 From the electrical side of things, it should be easy. There's a few of us running TBI on V8's. The fuel system isn't too big of a deal either, you just have to run a return line. The more parts you can get off the donor, the better. Try to get ALL the engine wiring and whatever runs to the computer. Grab the voltage distribution block and all the relays off the firewall too. Also get all the fuel line you can, it's easier to toss stuff later if you don't need it than it is to go find some unique fitting or bracket. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ



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