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Old 07-14-2011, 11:30 AM   #1
83highsierra
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whos running the 305

Ok so bought a motor for $200 has all accesories i thought it was a 350 come to gind out its a 305 its gonna be going in a 83 c10 ive been told 305 r junk can one be built fairly cheap or am i better off getting a 350. Im not looking to drag race it but at the same time if jbwant to lay down some rubber or i pull a trailer i dont want to be under powered what do u think
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Old 07-14-2011, 12:26 PM   #2
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Re: whos running the 305

305 came in C-10 & are good lil motor's, but i'm sure tha masses will flock in & tell you to junk it...
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Old 07-14-2011, 12:45 PM   #3
fleetsidelarry
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Re: whos running the 305

305s are ok. to me it depends on whether you're going to tear it down and do a rebuild or just use it as is.

if you plan on rebuilding anyway, the money's the same (or less) for the 350. if you plan on upgrading the 305 to make more power, you'll spend some $ just to get to the 350's baseline. same upgrades on the 350 get you even more.

if your plan was to just put it in the truck and drive, you've already go it so you might as well use it.

just my 2¢
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Old 07-14-2011, 01:02 PM   #4
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Re: whos running the 305

I would not rebuild a 305 for HP when I can buy a 260hp crate motor from Jegs or Summit for 1500 dollars. It even comes with a 3 year warranty. I learned that the hard way when I took my 350 into the machine shop and went to pick up the pieces after they were done.
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Old 07-14-2011, 02:55 PM   #5
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Re: whos running the 305

The 305 isn't a "bad" engine. They have their place and purpose. But performance in a heavy vehicle is not one of them.

I wouldn't even consider pulling with one.

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Old 07-14-2011, 07:54 PM   #6
83highsierra
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Re: whos running the 305

ok so im gonna put in the 305 now another question im thinkning about going ahead and and getting a 350 block and mildly building it. what are some parts i could currently put on the 305 to gain some power and at the same time be able to swap to the 350 when im ready to put it in. i figured
aluminum intake
headers
carb
distributor
what else????
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Old 07-14-2011, 08:32 PM   #7
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Re: whos running the 305

Not much point in using the parts on the 305 because when you're block is ready and internals are done you'll need all the external parts anyways. May as well have everything on the 350 and ready to go and drop in. Personally if the 305 is running fine and you need to get on the road ASAP I'd just throw it in. Build a mild 350 or 383 on the side if you want to keep the truck and have some good HP and tow with it. If you plan on selling the truck, don't both wasting money on building up a 350 unless you pull the engine and put the 305 back in when selling.

It all depends on what you need and what you're future plans on for the truck.
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Old 07-14-2011, 09:14 PM   #8
83highsierra
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Re: whos running the 305

true i plan on keeping the truck in the long run i was just gonna sell the 305 when i got a 350 done
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Old 07-16-2011, 09:42 AM   #9
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Re: whos running the 305

I have a 305 in my daily driver, and I have been very happy with it, both before and after it was rebuilt.
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Old 07-16-2011, 12:40 PM   #10
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Re: whos running the 305

i have a 305 in my 71 i built it, i had cklose too 600 dollars in it when i was done, i got free manchine work done at school, i got a rebuild kit new crank, push roods and so on
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