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| | | Forums66 Topics128,090 Posts1,056,022 Members48,430 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Oct 2008 Posts: 8 New Guy | | New Guy Joined: Oct 2008 Posts: 8 | Is it possible to convert my straight L6 a.k.a 235ci engine into a fuel injection engine ? I've loooked into diffrent conversion system but have'nt found any kind of bolt on system . | | | | | Joined: Jan 1970 Posts: 365 Shop Shark | | Shop Shark Joined: Jan 1970 Posts: 365 | I think I would start out with some sort of TBI system. When I get my shop built this will be one of the first projects I will attempt. | | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | I seem to recall reading something about altering a fuel injection system from a 4.3l V6, but that may be dust blowing around upstairs.  Try a search here and see what comes up. | | | | | Joined: Feb 2004 Posts: 29,787 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,787 | Don't the COE's use an updraft intake manifold and carburetor for body clearance? It would probably be possible to run a TBI unit upside down in place of a carburetor and adapt the necessary sensors to run it. Interesting idea! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2008 Posts: 17 Shop Shark | | Shop Shark Joined: Feb 2008 Posts: 17 | In August a fellow Inliner and I put a GM TBI on my '53 Chevy Pickup with a 270 GMC engine. We had it running in about an hour. I'm preparing a presentation for my club meeting this Saturday. There is more to a permanent conversion than the demo that we did but it's not too hard. Junk yard parts and a Megasquirt.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
| | | | | Joined: Jul 2000 Posts: 623 "MONGO" | | "MONGO" Joined: Jul 2000 Posts: 623 | a6row, what was the TBI you used original home? Mongo | | | | | Joined: Feb 2008 Posts: 17 Shop Shark | | Shop Shark Joined: Feb 2008 Posts: 17 | The TBI, ECM and wire harness came from an '89 full size GM van. You replace the ECM board with a Megasquirt board and a GM adapter board that plugs the GM harness to the MS. I think '88 to '92 will work. I've been parring down a '90 Suburban wire harness today getting ready for a presentation I'm doing at a club meeting Saturday. That takes some time and running fuel lines is some work. You have to have pressure safe lines and a return. Parts source is DIYAutoTune. http://www.diyautotune.com/
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
| | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | I would personnaly search ebay for a holly 2DFI system. Used you can find a complete setup for under $200. This is only fuel side, your engine would still retain the existing spark side. Adjustments are simple, idle screw, power screw, richness screw.
Or you could find a GM TBI unit from a 4.3, get the complete setup and install it. It will run fine without having to go Megasquirt which can be difficult for those that havent soldered a MS kit together or programmed EFI on their own.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Jul 2005 Posts: 77 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 77 | Search Clifford Performance. They have a TBI unit for the 235. I have not done this conversion so I can't get you very much details other than that I know that Cliffords delas a lot into the performance of the 235's.
John Kinser
| | | | | Joined: Feb 2008 Posts: 17 Shop Shark | | Shop Shark Joined: Feb 2008 Posts: 17 | Check these guys. I just came across it . http://www.affordable-fuel-injection.com/
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
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