The Stovebolt Site Forums The Shop Area Engine Shop swapping out a 235 to a 350 chevy engine in 57 1/2

im sure some people has done this but id like to know what all is invaolved and and how hard this is going to be to do this have a 1957 chevy 1/2 ton truck has the original 235 6 want to take it out and put in a chevy 350 but if possible id like to leave the 3 speed on the colum trans in it can i do that way and can anyone tell me this process step by step of changing the 235 to the 350 and help be appricated thanks jamie...

This is a common swap and there is a lot written on it in this forum. I'm not sure if anyone has a written step by step procedure. Since that year truck came with a V-8 you are basically doing a stock installation. Nothing from the 235 can be used for the conversion except for the clutch and that depends on which V-8 flywheel you obtain. You will need a V-8 bellhousing, flywheel, front motor mounts, ignition switch, exhaust system, throttle linkage, pulleys, hoses, and all the other V-8 components. If you send me an email direct and I can provide you with a spreadsheet which lists all the parts needed with some sources & estimated costs for the conversion.
Fred

Ive done a couple of them & it,s very rewarding. They even drive better. The v-8 is lighter in weight & the weight is further back. I can't add much from what rfs said but if you plan on adding power steering in the future you may want to use a engine mount kit that uses the center mount. The kit for the front mount has got very expensive I noticed in the latest catalog.