CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

look what I found

ya the v in the model means v series motor block right ?

thay did make inline motors with super chargers tho.
 
Dude, I dont' want to be a nay-sayer, but an iron 6-71 weighs in at over 2100 lbs dry. It's hard to see just how big that motor is without anything else to reference it by, but it's approximately three feet tall from the bottom of the oil pan to the top of the valve cover. I've seen pictures of 6-71s in light duty pickups, but its a tough fit. Detroit did make a 6V-71 which is a V6 instead of the inline 6 that this is. Those bastards are pretty heavy too.

If you're set on swapping in a Detroit Diesel, they made a smaller 53 series (which is 53 cubic inches per cylinder) in an inline (3-53 and 4-53) and a V (6v-53). They made 8v53s for marine applications, but they're probably still a bit too big for a light duty truck.

I'm swapping in a 4-71 and it's pretty damn big. I'll see if I can dig up a pic or two of a pickup with a 6-71 in it.
 
ya the v in the model means v series motor block right ?

thay did make inline motors with super chargers tho.

Yes the V designated that it was a V series engine.

The later inline engines had a supercharger AND a turbocharger.
 
Sorry that's not a 6-71, that's a 6-53 Detroit. 671's are correctly labeled 6V-71, because they are V motors. The 71 means it has a blower, others that have a blower and a turbocharger are called 6V-92's. Or 8V, or 12V- 71 or 92. They are two stroke diesels that if tuned properly, can be very powerful motors in trucks. The 6-53 was an inline 2-stroke motor, but never came with a blower (impractical) only turbos. And by the looks of that pic, it doesn't have one. So basically, that motor is a good boat anchor.

It's a 6-71. A dead giveaway of the inline 71 series motors was the external water manifold over the exhaust ports and the individual airbox inspection ports. They had one per cylinder. The 53 series has bigger inspection ports that aren't individual and doesn't have the external water manifold. And, Detroit never made an inline 6 in the 53 series. OH, and all the two stroke motors had blowers. Every one from 1-71 all the way up to the 20V-149.
 
friend has a old gmc astro cab over.

8v71 runs. and has turbo kit for it. plus 13 speed road ranger trans to boot.

i can have it for prob less than 2k cash. :eek1:

k5 blazer frame here we come. :haha:10 bolt rear with gov lock also.:haha::haha::haha:
 
The later inline engines had a supercharger AND a turbocharger.
Actually, the engines were designated N for natural and only had the blower and T for turbo that had a turbo and the blower. I'll have to pull out my Detroit books, but I believe the turbo motor was introduced in the early 50s. You can go down to a Detroit dealer today and get a new N or T motor. It's all depending on the application.
 
Damn! That Chevy is CLEAN!

Here are a couple pics of a 6V-53 in a Chevy engine bay. It's a TIGHT fit.

6V53 Chevy 1.jpg

6V53 Chevy 2.jpg
 
Rummaging through my Detroit pictures, I found a pic of a 71 series connecting rod from when I was building my engine. Pretty big, huh? (my hands are big too, almost 10 inch finger spread)

BTW, the post earlier about the turbo "kit" got me wondering what exactly is in this "kit". The T motors had specific turbo pistons, liners, and cams.

IMG_1447.JPG
 
It bolts to the pin.

With a second look i can now see the counterbore for the bolt. Never seen that before. I have seen rods that used a pinch bolt but the end of the rod still had a "hole" for the pin to go through. After enlarging that pic it looks like there is probably a provision on the other side of the rod for another bolt?

Learn something new everyday. :thumb:
 
With a second look i can now see the counterbore for the bolt. Never seen that before. I have seen rods that used a pinch bolt but the end of the rod still had a "hole" for the pin to go through. After enlarging that pic it looks like there is probably a provision on the other side of the rod for another bolt?

Learn something new everyday. :thumb:
Yeah, bolts on with two bolts.

Connecting Rod.jpg

Piston.jpg
 
Well I stand corrected. Thanks for sharing, I hate to have incorrect knowledge in my head.;) I dun did lerned something today.
 
Actually, the engines were designated N for natural and only had the blower and T for turbo that had a turbo and the blower. I'll have to pull out my Detroit books, but I believe the turbo motor was introduced in the early 50s. You can go down to a Detroit dealer today and get a new N or T motor. It's all depending on the application.
Yep, and there are TT motors late in the game that came from the factory with twin turbos. My old boss had a 56' boat with 14' beam, and it had TWO 8V-92TT's in it (about 850HP each). He actually waterskied behind it once, just to prov he could. That thing had some scoot for a big boat.:D
 
Sorry but there is an inline 6-71 and was probably more common than the v engine. In the 53 series I believe the v series was the more common & I don't think I ever saw an inline 6-53 I see now Rock Star has everyone pretty much squared away on this. I used to work in the oilfield up in Woodward, America (NW OK) back in the early 80s and saw & worked on everything from 2-71s to 16V-149s the detroits were very common industrial engines back in the day.
 
Last edited:

Latest Posts

Top Bottom