need help identifying a supercharger - Ford Truck Enthusiasts Forums



need help identifying a supercharger

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 11-10-2008, 07:31 PM
fun_suv's Avatar
fun_suv fun_suv is offline
Senior User
Thread Starter
 
Join Date: Mar 2006
Location: Norwalk, CA
Posts: 425
fun_suv is gaining momentum as a positive member of FTE.
need help identifying a supercharger

Hey guys,

What does this look like to you? Any idea on the application? I have a feeling it was intended for a marine engine setup.













Reply With Quote
  #2  
Old 11-11-2008, 04:23 PM
85e150six4mtod 85e150six4mtod is offline
Moderator
 
Join Date: Apr 2004
Posts: 19,902
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
It looks like a GMC 6-71 blower. These hung on the side of an inline, two-stroke "Jimmy Diesel", later known as a "Detroit Diesel", or "DeeTroit".

The engine was ubiquitous. Busses, trucks, construction equipment, military, marine, industrial. And then there was the blower--after duty on one of the above, the 6-71 found a home on almost every engine you can think of. Vaporizing M&H Racemaster slicks, pushing past the 200 mph barrier in drag racing, faster still at Bonneville, blowing the sides of blocks and entire bottom ends out of engines of all kinds, and inspiring giggles and peed pants in school boys everywhere as streetrods of every kind waved the 6-71 flag a foot tall out of the hood or polished to a mirror shine in a hoodless fenderless rod.

Smaller versions, and larger, and different series such as the 8v-71 and 14v-71s soldier on today. The design is also copied by B&M and others.

Pics here:

Project33 1933 Ford 3 window highboy coupe - Rebuilding a GMC 6-71 Blower Part 1
Reply With Quote
  #3  
Old 11-11-2008, 05:12 PM
fun_suv's Avatar
fun_suv fun_suv is offline
Senior User
Thread Starter
 
Join Date: Mar 2006
Location: Norwalk, CA
Posts: 425
fun_suv is gaining momentum as a positive member of FTE.
Wow, thanks 85! Would you have any idea why both sides of this supercharger are open?
Reply With Quote
  #4  
Old 11-12-2008, 12:05 AM
85e150six4mtod 85e150six4mtod is offline
Moderator
 
Join Date: Apr 2004
Posts: 19,902
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
Air in the small side, air out the big side. As installed on the Detroit or Jimmy engine, the blower is bolted to the side of the block and blows into the cylinders via "lights" or holes through the block into the cylinder which are opened and closed as the piston travels up and down.

Like so--the top engine. You can click on the pic for a closer look:

Surplusman : Browse Catagories

As installed on V8's in sits on a blower manifold between the two cylinder banks. A fine installation here and no, you're not seeing double--well you are, sort of...

Train History

Other installations include direct crank drive in front of the engine with the charge going into a manifold via tubes. You can find that set up about half way down here, along with many other variations.

Flathead Ford, Hudson Hornet 7X, flathead supercharger kits & vintage nostalgia racing
Reply With Quote
  #5  
Old 11-14-2008, 10:34 AM
Freightrain's Avatar
Freightrain Freightrain is offline
Shiftoholic
 
Join Date: Jan 2003
Location: Ohio
Posts: 8,867
Freightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud ofFreightrain has much to be proud of
On the 5th pic down, you'll notice a "lip" on the side of the case(bottom of pic). That denotes a INLINE 6-71 application. The lip helps holds the blower on the side of the motor til you get the bolts in. There is also a 6V71 version that doesn't have that lip.

Here is my galaxie getting one installed on it.

My case has the lip still on it, though it's on the other side. Usually most guys cut the lip off, but it doesn't interfere with my install.


These motors were very popular boat motors, also large gensets. Anything that had a constant rpm, as these motors had a narrow powerband.
Reply With Quote
  #6  
Old 03-04-2009, 07:29 AM
Don S.'s Avatar
Don S. Don S. is offline
Elder User
 
Join Date: Aug 2007
Location: S'Dale Wa.
Posts: 552
Don S. is starting off with a positive reputation.
Ah yes have one of these sitting the boat, Grey MArine 6-71 Two-storke Diesel, and as they say every stroke is a power stroke. The one in the boat is a side mount also.

I was told the was a lo-boy and Tall-boy model 6-71, never seen anything that proved it, just something that was muttered by some who-dats at morning coffee.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help to post pictures bobj49f2 1948 - 1956 F1, F100 & Larger F-Series Trucks 186 12-08-2017 01:54 PM
Gentex 453 Autodim mirror with Homelink papadelogan Ford Truck Parts for Sale 0 02-05-2017 11:26 AM
Mojave Safari March 6-9 2009 fun_suv S. California Chapter 24 07-06-2016 10:49 PM
Vin decode 64highboy 1967 - 1972 F-100 & Larger F-Series Trucks 4 06-06-2016 03:42 PM
Found this tire willowbilly3 1947 and Older Ford Trucks 11 02-19-2016 06:13 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
390, 421, 427, 428, 671, blower, bm, cases, detroit, diesel, ford, identifing, identify, identifying, marine, supercharger

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 03:00 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.