Does your blazer have its orig. engine?

[Medicanman71]

Is your blazer "matching #'s" ?
Do you think having a matching #'s motor effects value, if not, do you think it will some day?

I imagine plenty of you guys do have blazers with their orig blocks, but is the motor a dog, or is it alright power wise? I was pretty shocked when i found out my 350 appears to be orig. to my blazer.
It's no hot rod engine, but i'm pretty happy with it. No doubt it's been rebuilt before i aquired it. Since i've had it atleast most of the top half as been rebuilt. The heads have been changed since i've owned the blazer in place of some older corvette heads. It also has a new carb, headers, etc. Just wondering, thanks for the input guys.

edit: hey look 600 posts

[bouncytruck]

Yes, 117,000 miles, 100% stock (just changed what appeared to be the original water pump) and goin' strong!

[Big Block]

Mine has over 130,000 on the original 350 engine. All stock except hei ignition which I installed after purchase. The engine is vrey very tired. The original owner used the Blazer to clear snow from his driveway in Gunnison CO from 72 until 01. When he retired he sold the Blazer and moved to Oregon. It was purchased new on 3/21/72 from Spedding Chevrolet , Denver Co. Purchase price was $4969.00 after trade in allowance of $1150 and state tax of $114.57 and $25.00 doc fee out the door price was $3958.57 That might sound good today but that was a lot of money for vehicle in 1972 and it didn't even have a/c! Future plans include a crate engine, overhaul transmission and transfer case. I'm not worried about the value with the original engine, I plan to keep it as long as I'm am able to drive it. For now put in a quart of oil and some transmission fluid and drive topless.

[tpi72blazer]

Nope - I didn't want the original engine.

[LUV2XCLR8]

2wd - Yes

4wd - No

[70rs/ss]

My 72 has a 454 ORIGINAL, yeah I wish. I have had 4-5 K5's all 4X4 and all 350 (if not original, stockish) and they were all pigs. I swapped a cam, intake, carb, and hei as well as headers and it helped, but compresson is the key. If I had a small block K5 I'd pony up the $$$ for Vortec heads and the cam, intake, carb, hei and then I'd be OK. But with the 454 I am thinking 500hp and gobs of torqe, nuff said!! As far as value, better is better, so the #'s don't matter these are not muscle cars. Compare a Charger with a non-original hemi to a 440 #'s matching car and see which is more $$$, again same "clone" Hemi vs a "real" hemi again see the logic. A truck is a truck unless its a loaded short bed w/ac, BBC, yadda yadda, then the value is up, but not for a SBC power truck, Blazer, Burb.

[Jason915]

Mine does but not for long I have a 356 with iron L98 heads almost ready to put in

[ericguy320]

I pulled the original one out a few weeks ago still had the plastic timming set the chain was soo worn it rubbed a hole in the bottem of the cover,the block was cracked in about 10 places. But it still ran fine when i pulled it just used a lot of oil.

[Medicanman71]

hmmmm... mine must have had alot of work done before i got it, and then some as i said once i got it. It's not dog... it will spin my 33's if i want. The block and some of the internal parts are probably all that's left as far as orig. equipment goes on (or in) my block. Pretty interesting, thanks for all the feed back guys. I guess i should have voted myself durrr

[Jason915]

My stock engine has maybe 100HP I don't think it'd spin a 30X9.50 on ice LOL. If you can spin 33's thats pretty good. What gear ratio do you have? Can you break it loose from a dead stop or just when you turn hard and get a nice peg leg burnout?

[LUV2XCLR8]

Originally Posted by LUV2XCLR8

2wd - Yes

4wd - No

My 4wd will roast all 4 if locked in HI, and that's w/ 3.08's,
but of course it ain't even close to stock by any means

[Medicanman71]

Originally Posted by Jason915

I don't think it'd spin a 30X9.50 on ice LOL. What gear ratio do you have? Can you break it loose from a dead stop or just when you turn hard and get a nice peg leg burnout?

Good question, i'm not sure but i'd like to know. My blazer is no dog from a stop, but on the other hand, i was able to cruise down here when i moved (300miles) and i kept it at about 75mph min. It didnt sound like the rpm's were THAT high... it ran fine. I know it will do 100 (or has a long time ago) with 31's but it's screaming pretty loud at that point) I have no idea on the ratios, but i've been wondering for a pretty long time. Back in the day, (almost a year ago) before i had my 33's, i had 31's... i could smoke the heck out of them(them as in, most of the time) from a stop, on demand, no problem. I think after my blazer is warmed up a bit current day i could most likely spin at least one of them(33's) from a stand still.

I dont think it's a limited slip, it's for sure not posi. But as said i could still get both to hook up at times... Not sure how normal this is or not, my girls 98 grand cherokee isnt limited slip but it can also hook up both tires pretty well if it's wet. This (my blazer) is my 1st caburated V8, i'm not sure if most are either like mine, or no smoke at all no matter what.... however, once i get a tire/s going, i can usually vary pretty easily on how much i want to roast them by listening to the rpms and stepping on the go pedal harder OR/ not so hard.

Originally Posted by LUV2XCLR8

My 4wd will roast all 4 if locked in HI,

You're not the 1st person i've heard this from, but i've never seen it before. Let me know when you post pics (i assume you have front and rear lockers )

[LUV2XCLR8]

Originally Posted by Medicanman71

You're not the 1st person i've heard this from, but i've never seen it before. Let me know when you post pics (i assume you have front and rear lockers )

No lockers, just Grass Seriously though, it will spin the rears with very
little or no effort, never tried all 4's on Pavement, might break something.

[Medicanman71]

Originally Posted by LUV2XCLR8

might break something.

That's what i think too. Pretty good way to test for weak links and u joints imo. Wet grass, is another story however.

[FRENCHBLUE72]

My motor is a stock crate motor runs great but it aint no power house... The toyota on the other hand will light em up on dry pavement all day long or at least untill the crush sleeve goes away then kaaa powie

[71RestoRod]

"Not quite stock..." but I do keep the original engine in the corner of the garage just in case someday I want to go back.

I live in a pretty small mountain town. The other day I was driving down the main street through town when I got stuck behind a couple of jerks on motorcycles trying to find a parking place. I was in a hurry to make an appointment and when they finally pulled over I let my lead foot get the best of me. Dropped from second to first going about 10 or 15 mph and found out that I could light up both 33"s full bore. Damn near lifted the front end off the ground. Left two trails of black rubber up the main street. Unfortunately I didn't see the Sheriff right behind me. The flashing red light was my first clue. "Damn, officer. My foot got stuck under the brake peddle..." He said, "Come on, don't BS me". "No, Really!". Didn't he let me go with a warning! First time in my life I've gotten away with murder like that. Turns out he's got an old Chevy truck at home he's working on. There is a God.

[Medicanman71]

Whoaaa, awsome story

That part with the cop... OF COURSE

Been there, done that. I wasnt SO lucky on the other hand. The AH peace officer tried to nail me with exhibition of speed (2 points in CA), and i think speeding too... there was more then just that 2 pointer.

All i can say is thank god i contested it, and THANK GOD the cop didnt show up! I was up 1st out of 3 people (juvi court, back in the day ) ... the judge said how about you go last and we'll give this officer some time to show up... Needless to say he didnt ( THANKS GOD ), and it was all thrown out. I even lost my license for two weeks between my 1st and final court dates...

[EFI70Blazer]

Mine is not even close to stock. My dad's 72 is completely stock with 229,000 original miles and the drivetrain is still untouched other than some valve cover gaskets. All the drivetrain is numbers matching and original to the Blazer. Here are a couple of pics of it. The original color was dark yellow according to the build sheet.







Drove it this weekend to go camping. Still has decent power, but will need a rebuilt sometime in the near future.