help my 357 alpha v4 block cracked can i use a 350 chevy block as a replacement???

[stephen_5]

hello i have a 357 alpha 4v mercruiser unfortunately my block cracked over the winter do to improper winterization i want to pull the engine and replace the block myself could i use a Chevy 350 block to do this and would i need to bore it out? Block cast number 10243880 S/N g400963

 

[alldodge]

Yes, a 357 is a 350 block bored .040 over, but you do want a late model block

Your casting number
10243880...350...95-00...2 or 4...Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal

 

[Scott Danforth]

I would check with your local machine shop. would be able to build a 377 or 383 for the same cost as a 350