Hi. I have received a lot of great information and I believe I think I know what I might do. I found out I currently am running a mismatched Quadrajet from a 69 350 on my 68 GS400 and it is running poorly. Since I need to rebuild, may as well see if anyone has a good complete core or a decent running one with these numbers I obtained from Mike. I am not running a race car or built engine, just a weekend cruiser. 400" Eng (Early) A/T R-4-4MV 7028242 (Late) A/T R-4-4MV 7028246 430" Eng (Early) A/T R-4-4MV 7028240 (Late) A/T R-4-4MV 7028248 Thanks for everyone’s time.
We have a 7028240 built and ready to ship. http://quadrajetpower.com/buick-1968-big-block-quadrajet-7028240/
My brother had a remanufactured Quadrajet that I am thinking of using. The number is 17058253 1- leader to determine 1978 70- Rochester 5- 1976-1982 8- 1978 with a 1 leader 2- quadrajet 5- Oldsmobile 3- where I cannot determine what engine it came off of. I know it is a manual shift Does anyone know what engine the 3 represents. And Mark, how much is a general rebuild of 7028240 or 7028248? I had both of these the whole time in storage.
The 17058253 was 1978 Oldsmobile Delta and 98 350-403 engine, automatic trans. Our complete build prices start at $250 for a stock engine.
