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1980 blazer #2492326 08/09/11 11:36 PM
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michael rice Offline OP
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guys the 305 is done should i rebuild or go 350


Re: 1980 blazer [Re: michael rice] #2492335 08/09/11 11:37 PM
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350


Re: 1980 blazer [Re: texretvet] #2493624 08/10/11 02:42 PM
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chalet Online Content
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350. How much money are you going to spend? You can get a basic Goodwrench 350 longblock for around $1600. Believe your intake, accessories and carb will just swap over. Never messed with a 305 though.





Last edited by chalet; 08/10/11 03:32 PM.

Shoot. Eat. Repeat.
Re: 1980 blazer [Re: chalet] #2494450 08/10/11 08:29 PM
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michael rice Offline OP
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the truck has a 2 barrel carb right now i got 2,000 cash to spend


Re: 1980 blazer [Re: michael rice] #2494583 08/10/11 09:13 PM
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http://www.summitracing.com/parts/NAL-10067353/

Comes with GM warranty.

I've heard 2 barrel carbs on 350 will get you decent mileage, never tried it. If you want a four barrel for power, quadrajets and stock intake manifolds are pretty cheap and easy to find.



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Re: 1980 blazer [Re: chalet] #2495843 08/11/11 05:56 AM
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yep, go with the 350, and the 2 barrell will work just fine as long as you keep the 350 stock. everything should bolt right up and work just fine.



Tolerance is the virtue of a man without conviction.

The end of the world began the day it was created, and life is a sexually transmitted terminal disease.


Re: 1980 blazer [Re: psycho0819] #2497796 08/11/11 11:37 PM
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michael rice Offline OP
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truck will be stock its a 2wd going to fix up for son


Re: 1980 blazer [Re: michael rice] #2499653 08/12/11 06:41 PM
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the 305 is POS.....GO with the 350



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Re: 1980 blazer [Re: LG] #2499966 08/12/11 09:17 PM
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When you get that engine replaced, either way you go, use the following link to set-up the timing on it. it will run much better and get better mpg's than if you just stick the distributor in it and set the static timing. I use this same method and it works way better than the way GM did it when they were trying to dodge emissions during that era.
http://67-72chevytrucks.com/vboard/showthread.php?t=290498



Tolerance is the virtue of a man without conviction.

The end of the world began the day it was created, and life is a sexually transmitted terminal disease.


Re: 1980 blazer [Re: psycho0819] #2500049 08/12/11 09:41 PM
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Another very important note. Read the following link, understand it, and take it to heart. Oils have changed a lot over the last decade or so, and not for the better on the older flat tappet hydraulic engines. It's all explained in this thread, and there are plenty more write-ups about it all over the web. proper break-in and using the right oil will make all the difference in the life of the new engine. If you are not doing this work yourself, make sure whatever mechanic you use understands this, or you are just going to get an engine you will have problems with. And if proper break-in and oils aren't used, no-one will warranty the motor.

http://67-72chevytrucks.com/vboard/showthread.php?t=381780



Tolerance is the virtue of a man without conviction.

The end of the world began the day it was created, and life is a sexually transmitted terminal disease.


Re: 1980 blazer [Re: psycho0819] #2503858 08/14/11 07:17 PM
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michael rice Offline OP
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thanks for the info


Re: 1980 blazer [Re: michael rice] #2595514 09/20/11 05:59 AM
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305 and 350 get about the same mpg but the 350 has way more power i have a 92 z71 with a 355 put about $800 into it and its makin 325 hp to the wheels



Originally Posted By: stinkbelly
One side note, NEVER put an armadillo in a paper feed bag.
Re: 1980 blazer [Re: psycho0819] #2617090 09/28/11 01:29 PM
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You can also find newer 5.3 chevys with everything you need for around that price and you will have fuel injection...


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