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#1 |
Registered User
Join Date: Nov 2006
Location: Amman, Jordan
Posts: 121
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convert to TBI
Hello guys, i am planning to convert my chevy inline 292 to TBI, I did a lot of search and red some articles, I will be using the v8 305 or 350 TBI system. What parts I need to take off of the donor’s engine with TBI, wiring harness, the computer and fuel pump. Do I need sensors, which? Change the distributor?
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#2 |
Registered User
Join Date: Nov 2006
Location: Amman, Jordan
Posts: 121
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Re: convert to TBI
anyone... please
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#3 |
Senior Member
![]() Join Date: Apr 2001
Location: Alexandria, MN
Posts: 1,462
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Re: convert to TBI
im doing the same thing..... heres what I found... Its best to find an 87 TBI system and grab EVERYTHING from the donor truck... the reason the 87 is desirable is they added the TBI as an add-on preparing fro 88's new body style so the harness/computer etc has its own seperate harness. I was planning on using an aftermarket 4bbl intake and making (i am a metals teacher) an adapter for the throtle body. you will also need an electric fuel pump unless you are going to retrofit a burb or blazer tank under the rear of the bed. I am planning on doing this to a 63 pu so I will have to add a return line from the TBI back to the tank... you should just be able to tie into your existing one. My only question yet is concerning the distributor and if there is a plug and play dist that can be used... not sure if the regular old HEI will work. Hopefully someone can answer that.... Hope that helps..
--Mike
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63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's |
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#4 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,963
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Re: convert to TBI
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#5 |
Account Suspended
Join Date: Dec 2008
Location: indisclosed
Posts: 1,515
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Re: convert to TBI
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#6 | |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: convert to TBI
Quote:
You can use 1227747 ECM from V6 application (4.3L) common across multiple platforms C/K trucks, minivans, etc. The 292 is only slightly larger than 4.3L V6 - the 45lb-hr injectors used in V6 application will work just fine. To get things going stock V6 calibration will be enough to fire the 292, but expect to spend time tuning ECM parameters to get best performance and economy. Check the TBI conversion thread. Hence, I see EPROM tuning in your future. ![]() //RF
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"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) ![]() New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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#7 |
Registered User
Join Date: Mar 2010
Location: Beaufort SC
Posts: 583
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Re: convert to TBI
It depends on if you plan on running stock or aftermarket chip/computer. If you get a custom chip you can have the EGR and stuff turned off, which you would probably need since your I6 is different.
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1981 Dodge D-150 (under construction) 2007 Chevy Suburban 2010 Dodge Charger R/T 1980 Kawasaki KZ 440 2004 Harley Sportster 1200 |
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#8 |
Registered User
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
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Re: convert to TBI
Search over in the engine area, at least 4 threads on this topic.
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1987 2 ton ![]() 1982 ![]() Dad's 1981 ![]() Plus a mess o' tractors |
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#9 |
1962 C-10
Join Date: Apr 2005
Location: Las Vegas, New Mexico
Posts: 4,978
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Re: convert to TBI
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Joseph Chavez ![]() "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4 |
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#10 |
Registered User
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
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Re: convert to TBI
$255 on evilflay buys a new billit 7 pin L6 distributor
or mod as above or find the rare California ESC 7-pin distributor
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1987 2 ton ![]() 1982 ![]() Dad's 1981 ![]() Plus a mess o' tractors |
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#11 |
Registered User
Join Date: Feb 2008
Location: sacramento california
Posts: 204
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Re: convert to TBI
how do you wire the 4 to 7 pin? do you have pics or diagram or is there a wire harness somewhere that I can buy? thanks
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#12 | |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: convert to TBI
Quote:
![]() Depending on your HEI distributor vintage you may or may not have to replace reluctor coil - just swap in ignition module and harness in and see if it runs ok with TBI. //RF
__________________
"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) ![]() New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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