robt Posted March 24, 2019 Report Share Posted March 24, 2019 I recently purchased a 55 c series truck and was told the engine was blown (260 poly). I did get a new full gasket set with it along with a box that contained a bunch of the engines bolts and two connecting rods. Its clear someone has had the heads and pan off. I will disassemble and check it out but want to consider my other options. I have a good 265 flathead that I could put in it and may go that direction but would prefer to keep it a v8. Will the 318 poly bolt in without a lot of modifications? I read somewhere that they changed the crank flange in 1962. I'm not sure if that is true or not. I would like to maintain the original bell housing and overdrive trans. If I opt to go the flathead route, will the bell housing be drilled for both the V-8 and the flathead? Thanks Rob Quote Link to comment Share on other sites More sharing options...
wayfarer Posted March 25, 2019 Report Share Posted March 25, 2019 You 'might' have a dual pattern bell. You will find out when you remove the engine. As to the 318 Poly, if it is pre-62 then it is essentially a bolt-in as far as the bell and flywheel goes. Do you have side engine mounts? Not likely. You will need to do some fab work. Quote Link to comment Share on other sites More sharing options...
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