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changing 305 to a 350

  #1  
Old 07-06-2010, 08:15 PM
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Default changing 305 to a 350

ok so i got a pre 86 350 from a freind to put in my 1988 monte carlo. I have changed engines before so it will be some what easy but have a few questions. I know at some point there changed the engines a bit. The 350 i got is just the block and heads. the starter alternator ect is not there. He said i could use everything from the 305. Is this true or not what will fit on and what wont
 
  #2  
Old 07-06-2010, 08:44 PM
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From my experience, most small block chevy engines are pretty similar. You may be surprised on how interchangable the parts between the two engines are. I would look to make sure the mounting holes for the accessories are in the same locations. If you can bolt the accessories on, I see no reason why you couldnt use them.
 
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Old 07-06-2010, 09:29 PM
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There should no reason why the acc from the 305 couldn't fit a 350. We dropped a 305 into my brother's 65 Impala when he grenaded his 327 and i dropped a 383 Stroker when the 283 finally retired into my 60 Apache.

I say GO FOR IT.
 
  #4  
Old 07-07-2010, 07:44 PM
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was talking to a guy today that said the only differnt things that would not work on the older 360 would be the intake bolt pattern changed? and the fly wheel ? can anone conferm this please. Want to get anything i need before i take my engine out. My 305 is a 88 and the 350 a pre 86. Thanks for the answers already i was looking at the alternator and things and there will go on no problem.
 
  #5  
Old 07-07-2010, 08:23 PM
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Yep the 4 center intake bolts are at a different angle, and the flexplate for the trans is going to be different. The 88 is a 1 piece rear main and the older 350 will be 2 piece
 
  #6  
Old 07-07-2010, 10:28 PM
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you could take everything from the compuer controlled carb and all those goody's it has been done i think there is even a write up in montecarloss.com and make it work with the 350 or you can be like me and get a non cc carb(q-jet(direct bolt on)or holly,edlebrock,ect( with a adapter plate or new intake)
a vacume advance dist base
buying a trq con lock out kit or wiring one up yourself(just gotta remeber to turn it off)
 
  #7  
Old 07-07-2010, 11:14 PM
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does this need to be done trq con lock out kit or wiring one up yourself
for the tranny to work??. Could I just install a older tranny instead and not do this
 
  #8  
Old 07-07-2010, 11:49 PM
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Yes you may even be able to get a trq converter from an older tran and be able to avoid the lock up issues but if u do everything to keep the comp and whatnot you wouldn't need to worrie about it
 
  #9  
Old 07-07-2010, 11:50 PM
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o and it doesn't need to be done but your miliage will suffer and trany will go sooner
 
  #10  
Old 07-10-2010, 11:43 PM
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thanks for the help i wont be changing the engine for a couple weeks i might just look around and see if i can get a rebuilt tranny, as mine's not the best anyway
 

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