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250 to 350 engine
#764525 August 07th 2020 7:27 pm
Joined: Jul 2005
Posts: 1,788
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Joined: Jul 2005
Posts: 1,788
What does it take to convert a 250 engine to a 350....I have a really cool opportunity to get a running driving 77 van but the engine is pretty small for what I want to do (pull a BBQ smoker). I imagine that engine mounts are not the there other things I should be aware of.

Re: 250 to 350 engine
cjhardcore #764536 August 08th 2020 8:11 am
Joined: Nov 2013
Posts: 1,475
old hand
old hand
Joined: Nov 2013
Posts: 1,475
Done this once or twice. Yes on the v8 motor mounts. Chevy V8 will bolt up to chevy auto trans, OD units as well. Hell, even bell housings for manual trans. Lol. You will need exhaust manifolds, exhaust. I am unsure what headers will fit a van, but I've seen them installed. More radiator, aux trans coolers for towing. Should be some v8 build threads on here too.
Welcome! And good wrenching!

"Who New? Blue"
1990 Chevy G30 454
Church Van, maternity division

"Old Blue"
1988 Dodge B250

"Cabin Cruiser"
'94 Dodge B350
Xplorer MH model 230 230 hp MPI 360 LA Wedgy OD auto

Old vans never really die if we chose to let them live

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