Fuel injection on an 84 1/2 ton

**PrestonM** · 08-16-2009, 10:08 PM

Ok, here's another situation on my truck. I have a rebuilt 350 that I really dont want to replace. I have found a complete tbi intake and wiring for a ls1 motor. Will the intake work with my heads or do I need to find different heads. What is involved in a tbi conversion? I am interested in fuel economy here. Not looking for a street beast.

**unplugged** · 08-25-2009, 10:57 PM

Personally, if I were going to take on the challenge I'd go for a TPI, but the GM TBI is tried and true and should yield an improvement in fuel economy.

Check out this great article: http://www.goingfaster.com/spo/tbi.html

**PrestonM** · 08-31-2009, 10:56 AM

Thanks so much for the link. It is truly an informative article. Now, just need to purchase the components and swap them in. Will I have to get new heads or will my stock heads work?

**unplugged** · 09-05-2009, 10:54 AM

The stock heads will work fine. If you want to be creative you could port match the intake to the heads.
Here is a great thread at 62-72chevytrucks.com: http://67-72chevytrucks.com/vboard/s...d.php?t=293865