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New owner of 1979 k5 Blazer

W

WEAPON_(X)

Registered Member
Joined
Jan 8, 2012
Posts
6
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Location
Arizona Desert
HEy everybody! I just bought a 1979 k5 blazer. trouble is i know exactly doodley squat about automotive repair. however this site seems totally like the right place to start :D. I'm hoping to turn my impulse purchase into a monster machine and i'm already learning from the threads on here! i would tell you more about my truck except i have no idea what i have other than what the seller and dmv emissions test place have told. Seller said it was a 1979 Chevy blazer, it runs and has a "k5" and cheyenne markings. I dont know enough about automotives to tell what kind of engine (SHoulda paid more attention when dad was yelling explitives at his old beast of a chevy) i did just watch an episode of xtreme 4x4 that was talking about 14bolt axles (hope i got that right). Anyway I'm an :thinking:Electrician so I'm sure with the right guidance i can go from a comic book nerd to a gear head in a few gruelling years...:doah:


oh yeah and the emissions test place gave my monster machine a resounding F- and said i had had parts missing ( coal filter on the gas vapor somthin or another) an air system was completely missing but he wasn't sure it was required or only required in california ( no offense but everything including water is known to cause cancer in califas so...)and some hoses or something ... i dont know but one of the carbon monoxide idle standards is 220ppm and the readiung was 724ppm oh wait thats the hydrocarbons. the carbon monoxide standard was 2.00% and the reading was 9.33. and everything but the catalytic converter and fuel cap failed the equip/ pressure inspections
 
the saga continues today i took the air filter housing off and took a good look at the carborateur and found that most of the hoses leading either to or from the carb were cut short and stoppered with golf tees/ bolts/ screws. that makes sense since the charcoal canister and most of the emissions system is not there i was told.

i bought a Haynes book at the auto parts store to see what i could see . the book says for gmc/ chevy pick-ups 67-87 all 6 cyl inline 4.3l v6 and v8 gas engines suburban , blazer, jimmy. none of the pictures in the book match my engine./ on the back it says does not include deisel or gmc 305cu. in. v6 gas engine information. i think i have a v8 305. i know its a v8 8 wires on top of distributor = eight spark plugs = eight valves right?
the pics in the book show the small block v8 with the oil dipstick on the right looking at the motor/ cab from the front. it shows the big block with the dipsticks on the left for the atf and the oil like my motor. but the oil fill is on the right mine is on the left. the big block also shows the alternator on the righ mines on the left. other than that my engine compartment is very empty compared to the pictures n the book. i'm going back tomorrow to see if i can get a 79 k5 blazer specific book. gotta call the junkyard and or get prices while i'm at the parts store. :dunno: the transmission is leaking pretty good. first thing is the smog system hopefully that will also get rid of the gasoline smell as well.

any ideas on whether or not i have a 305 v8?
 
I think you can check the casting numbers on the back of the motor. But who knows if the engines been bored out or rebuilt. Post up some pics of ur rig if ya can. Sounds like you have a lot of work ahead of you. Your in the right place for help though!!!:waytogo:

Ps a small block v8 is really the same externally no matter what size. Just different intervals that make the difference, as far as the older motors, not referring to newer stuff.

And there are alot of ways to set up the accessories such as alternators and belts and such, so don't get scared if yours looks a bit different than in some of the pics.
 
You've most likely got a 305 or a 350. Only way to tell without getting into it is to look at the casting # on the block and run the numbers. Some engines (not sure when they started doing this) say either 5.0 or 5.7 on the left rear of the block where the trans bolts up.

Welcome to the board. You'll find all the info and then some you could ever want on here:thumb:
 
Depending on the era of the motor it may also be below the head on the front of the motor, seems like last one I checked was on the passenger side on the front behind the air con.

Then you can call chevy and have them tell you what the motor is. I am sure somebody here has the # handy.

With all the stuff that is missing I wouldn't trust that it is the motor that came with the vehicle.
 
I think we are all forgetting the easy way to do things, or maybe my head is in the sand. Granted it is still the stock motor, you can check your vehicle VIN # and it will tell you, look at the 3rd letter and it will tell you.
For 1979 Models:
D = 250 6 cyl
U = 305 V8
L = 350-4 V8
R = 400 V8
S = 454 V8

Or you can look at the sticker in your glove box, assuming its still there, and it should tell you what motor you have along with other goodies that came on your K5. Hope this helps.
 
Brown75K5 said:
I think we are all forgetting the easy way to do things, or maybe my head is in the sand. Granted it is still the stock motor, you can check your vehicle VIN # and it will tell you, look at the 3rd letter and it will tell you.
For 1979 Models:
D = 250 6 cyl
U = 305 V8
L = 350-4 V8
R = 400 V8
S = 454 V8

Or you can look at the sticker in your glove box, assuming its still there, and it should tell you what motor you have along with other goodies that came on your K5. Hope this helps.
Click to expand...

IF, the engine has never been swapped,.......... and in this case someone has obviously been in there if stuff is missing and dissconected.
 
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