markinnh wrote:All TBI units are the same bore and such until you go past the 5.7/350 engine in size, The Injectors are different I have a list of numbers and flow rates and such in another PC in my garage. the linkage you show I believe is 90 to 95. SO you can use the TBI unit from the original V6 and swap the V8 injectors on to it with a rebuild kit from rock auto or TBI specialties. and then use your original cable. I have rebuilt/modified 5 or 6 tbi units they are simple to do. If you were closer to me in California I would rebuid it for you free you just buy the parts. I prefer TBI over all other types of fuel systems so far just because they are simple to troubleshoot and fix.
If you want the flow/part number list let me know
Ya Thats right Mark. some of my vans have a round clip cable end, and the big block chevs with OBDI TBI have a larger different Throttle Body with bigger bores.
the OBD-I 4.3 and SBCV8 use the same Throttle Body and even the same computer box with diffrent chips.
I bought a chip, matched injectors, and shaved off the TBI's bumps and lifted the injector pod up as well. It still runs
here is a link with pictures that shows how to instal OBDI TBI on any SBC engine or 4.3. They even use use thame number computer box as I have.
http://www.gearhead-efi.com/gm-ecm-pcm- ... rsion.html
So, Aqua, You can use an Astro Throttle-Body unit like Mark said, and put V8 injectors on it.
Make sure the injectors you use are for a v8 of the same size as you run cuz 262 & 305 & 350 & 400 Injectors flow at diff rates.
Also (I assume you already did?) be sure to get the right V8 Chip for your OBD1 Computer box. Dont rely on a mechanic to do it for you.
What number was the Computer box you used?
Now, If you talking about the OBDII Throttle bodies, those are different again completely !
2021 Yamaha Tenere 700 - Blue.
2016 Yamaha XSR900 - Silver.
1990 Astro - AWD - Brown.
1987 Astro - With 5 Speed & 4wd - Silver & Blue.