Was your engine stock or a transplant?

[68 P.O.S.]

I ran the numbers on my 350 and it says my engine came out of a '74 Canadian cop car Reminds me of the Blues Brothers...

[LEEVON]

Here's a story for you. I bought my '71 swb in Missouri with an Arkansas title and when I registered it, they made me have highway patrol check it over for some reason. The trooper running the numbers told me that the block was definitely a 2-bolt main out of a 70's camaro but the good news was that the truck was not stolen I was bummed that it wasn't original, and ran the heck out of it until I dropped a valve. I yanked the motor and ran the numbers for kicks just to find out it was the original to the truck. Both block and heads had to be scrapped. DOH!!!

[TheSasquach]

Well I have yet to get the block casting numbers, from my '71 C20 but the heads and intake are both '69 396 W/350HP. so chances are the engine has been changed. David

[68 P.O.S.]

Originally Posted by MiamiGrant

Here's a story for you. I bought my '71 swb in Missouri with an Arkansas title and when I registered it, they made me have highway patrol check it over for some reason. The trooper running the numbers told me that the block was definitely a 2-bolt main out of a 70's camaro but the good news was that the truck was not stolen I was bummed that it wasn't original, and ran the heck out of it until I dropped a valve. I yanked the motor and ran the numbers for kicks just to find out it was the original to the truck. Both block and heads had to be scrapped. DOH!!!

Man, I would have been so po'd. That's one of those bad luck things that's happened to just about everyone.

[ks147j111928]

Stock stump pulling 292!!! I'm gonna name it Borax... 20 Mule Team!!

[Captain Knievel]

I knew I had a 305 form a late 70's GM car. But until Livrat ID'd it today, I did not know it was from a 78 Monte Carlo. Always liked Monte Carlos, so I guess I'm cool with it until I drop in some outrageous horsepower (right after those Lottery numbers match ...)

[84_4x4]

where on the block, head and intake are these numbers and how do you tell what they are from?

[Broken_down?]

Just found out today. I got a 68 50th that *had* a 327 stock. It was replaced with a 350 from a later model. My grandpas brother died and left hm the truck and I got it sence I grew up with it and loved it so. Well my grandpa could never remember excatally what year it the 350 came from. So I located and ran the block numbers and to my surprise it came back as a 4 Bolt Main Corvette 1970 to late 69 350. So I was very happy and surprised. Now I wish I would have takjen beeter care also... dum:

[bouncytruck]

Everything is bone stock on my rig. The factory markings are on the firewall and the delivery date is on the inner fender.

[BurnoutNova]

im not sure that the motor is the exact one from my truck, but the rpo code on the block is correct... there isnt a part of the vin on it like on some cars. when i pulled the engine apart the heads/intake and everything were dated corectly, but it was already bored .030 and had a forged crank... it is a 3970010 4 bolt block

i just rebiult the carbeurator and found its original or very close, it had the right numbers on it atleast. first carb'd vehicle ive had that runs perfect now... ive never had a choke that worked before

i doubt the motor is original, since the truck has had everything redone once.. including a new cab/ entire body and since then has compltely rusted again, so now im in the middle of the 2nd re-do of it. i myself have had 3 diffrent rearends in it, the glovebox said it had a posi rear end, but when i blew it up the first time it had an open rear in it, but the second time it blew up i found an original posi carrier and put it in. overall its definately a bastard child

[Bishops Trucks]

The 327 in my '68 4x4 is original and my other 2 trucks have transplants.

[rcbildr]

Back when I had my 71 chevy truck, I was pretty sure it had the original engine but I knew it needed a rebuild. A good friend of mine traded me an engine for the one that was in my truck. He thought his engine came from a 68 chevy truck, and the casting numbers on the back of the block were the same....didn't check the numbers by the cylinder head. The only difference between the two engines was, the one in my 71 was a 4 bolt main and the one I got in the trade was a 2 bolt main. The 71 engine now lives in my friend's 76 K5 Blazer, but it is a little different than stock, he built it up to a 400hp 383 stroker. I have since gotten rid of my 71 (depressing story) but I still have the engine and it will soon see life again in my Brother's 84 Suburban.

I'm not sure if the engine (a 283 or 307 I think, haven't ran the numbers yet) in my 67 Suburban is original or not, but I'm not too concerned with that. I will either build a 383 stroker for it or put in a 6.2L diesel.

[BurnoutNova]

6.2L diesels are junk put a duramax in or stick with a sbc

[rcbildr]

Originally Posted by BurnoutNova

6.2L diesels are junk put a duramax in or stick with a sbc

A lot of people feel that way about the 6.2/6.5 diesels. Maybe it's because of the Olds 350 diesel, which is only good for scrap, or maybe because they don't really compare to the ford powerstroke or the duramax, or maybe it they had bad luck.. They have been around long enough for people to figure out the short-comings of the engines and correct them and with a little researh nowadays I think that impression is unjustified (sp?).

I have a diesel in my 85 Suburban 4x4 and had a 2wd 82 diesel burb. They are not hot rods by any means, but they got good mileage for a vehicle their size. The 2wd got mid 20's and the 4x4 got 19 mpg...a gasoline rig maybe gets 15 on a good day with a tail wind. I used, and will continue to use the 4x4 as my camping/fishing rig...couldn't afford it if it had a gasoline engine.

I'm really thinking about the 6.2 diesel option for my 67 because I have all that is needed for the conversion and I can't afford to do the duramax conversion. The 82 2wd will be the donor vehicle and when I get done with it (if I decide to go that route), it will be far from the stock 6.2 that rolled off the assembly line.

[Longhorn Man]

some ppl think the 6.2/6.2 are junk... becouse they have to work on them all day.

[GREASEMONKEY72]

my engine and trans are original, and according to pencil notes on the door jam and faded writing on the spid label the engine was rebuilt at 85k but when i got the truck the speedo didnt work and the trans went out on the way home so ive driven it on a rebuild since ive had but i dont know the true mileage of the engine/truck but i know its over 120k, but anyway yea both are original

[65-72 chevytoys]

Truck has a transplant engine
This Jimmy has a numbers matching 307/350

[toms68cst]

My 68 engine is all stock. I ran all the numbers when I had it apart and except for the clutch and water pump all the numbers made sense.

Now with that '74 cop car engine, you are ready to jump opening draw bridges in your area!

[1969k10stepside]

The motor in the 69 is the original all stock motor...for now.
The 71 4x4 had a 292 originally but it was removed before I bought the truck.I would have had to remove it anyway so they just saved me some time.Now it has a 350 from a 71 Truck.So it matches but isnt original

[BurnoutNova]

Originally Posted by Longhorn Man

some ppl think the 6.2/6.2 are junk... becouse they have to work on them all day.

exactly... well i guess i havent worked on one in a couple years since i work at a ford dealer now... but the 7.3 powerstroke and definately the new 6.4 dominate, as they should for the technology advances and the cost.


i had a bad impression of them because by the time i started working on cars they were alredy out of productio, so all of the ones io worked on were at least 5 years old, mostly older and they were high mileage and worked hard.

and, ive never seen one that didnt have cracked heads...

[special-K]

Originally Posted by BurnoutNova

6.2L diesels are junk put a duramax in or stick with a sbc

I got 275,000 miles out of my`84 K/30 I used in my construction business before I sold it to a friend that used it on his mountain farm (and main transportation) for another 8 years before he sold it to some guy that planned to remove the totally rusted away body and replace with another one.I honestly can`t say what happened after that.I`m just glad no one told us the 6.2 was junk.It prolly would have broke down if we knew that.
I replaced that truck with my`92 K3500 I factory ordered with the brand new 6.5TD.It`s still my prime work truck with 240,000 miles.I did replace the motor because it needed the original injector pump,lift pump,injectors,and glow-plugs replaced and I wrecked the custom-built`95 with the custom-built 300hp marine-duty 6.5TD that only had 15,000 on it.The`95s original motor will reside in a 67-72 4wd I`m building.
I wouldn`t swap a Duramax into anything unless I wanted to spend some crazy money and do ungodly work.They`re best left in the trucks they came in.

[gmc1969custom]

All stock in mine.

[sleepyboy]

Edelbrock crate

[weav1]

At This Point I Would Put Anything In It Just To Drive For A Couple Of Miles<frame Getting Powdercoated>

[DAJ 67]

Was a 6 cylinder with 3 on the tree. Now, 350 with a 400 Turbo.