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Re: Found this
Csims #1410796 Fri May 21 2021 06:19 PM
Joined: Feb 2004
Posts: 22,981
H
'Bolter
One of the huge mistakes they made was offering the 348 in combination with possibly the worst automatic transmission GM ever produced, the Turbo-Glide. All the transmission techs back then referred to it as the "Terrible-Glide". The thing acted sort of like a governor to keep the engines from getting up to valve float RPM, however!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Found this
Csims #1412032 Sun May 30 2021 09:04 PM
Joined: Jan 2000
Posts: 566
D
'Bolter
I have a "warmed over" 348 in my 1957 Napco truck, some reflections:
- If you have a prior v8 installation (mine was a 283) the mounts match up
- The problem is the clearance between the #7 cylinder and the steering box. Usually some grinding is required.
My steering box was worn, so I went to a power steering set-up (1968 Saginaw box) and mounted it outside the frame.
Power steering makes the truck a pleasure to drive.
- Since I have 3:38 axles and an 3 speed overdrive trans (split for six gear operation) I needed more grunt than the 283.
This engine is very strong.
- I had 3 deuces, but had some problems, last problem was the gas leaking back onto the manifold after operation and sitting a while.
This problem appears that it can be solved with carb spacers; they make total rebuild kits for this setup. There are people who specialize
in rebuilding the carbs as a set, but usually expensive. Some people are very satisfied with the 3 carbs, others not as much. It seems if
you have the expertise they run great. I went to a 4 bbl carb, which ran great right of the box and actually makes more power. However,
the tri-carb setup does look great.
- I would recommend going to: http://www.348-409.com/forum/ for expert advice, some of those guys seem to live and breath W engines.
Bottom line for me, I wanted a 348 and I didn't care about anyone else's opinion, and that was it. It makes great power and people always seem to like a "different" engine.
Good luck, that looks like a good engine at a good price. They are a little more to rebuild, but you can get all the parts needed at "Show Cars" on-line. They are located in New Ulm MN. by the way.
don

Last edited by Donsz; Sun May 30 2021 09:05 PM.
Re: Found this
Csims #1412836 Sun Jun 06 2021 03:04 AM
Joined: Dec 2014
Posts: 815
M
'Bolter
Screw practicality. With that motor you will be the coolest guy at the car show.


1951 Chevy Panel Truck
Re: Found this
Csims #1412858 Sun Jun 06 2021 02:43 PM
Joined: Dec 2001
Posts: 15,526
'Bolter
Built a 348 for my 58 Impala back around 66/67. I was one of the lucky ones as i never had any problems with the 3 duce set up. I raced a lot, lost some, won many back in the day........
...but oh that faithful night, after some drag racing at the "Draytonville Straight" I got behind on my steering while going to another spot to continue racing. I well past 120, and I still carry many scars to prove it, there wasn't a 12 inch square on that car that wasn't twisted and mangle....including me, but I lived to race another day!...the good ole days? yeah, right.
Ohhh, that faithful night!

Last edited by Achipmunk; Sun Jun 06 2021 02:45 PM. Reason: puntuation

1937 Chevy Pickup [stovebolt.com]

1952 Chevy Panel [stovebolt.com]
52 Chevy Panel [photos.app.goo.gl]

Pictures in my Photobucket [s140.photobucket.com]

1950 Chevy Coupe
https://photos.websearch.com/share/...Nko1cUJCNFFMTVFEUnNRbjFhNTFPc1J4YWV4cmRB



I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile
Re: Found this
Csims #1412882 Sun Jun 06 2021 06:01 PM
Joined: Jul 2000
Posts: 61
R
'Bolter
Faithful or fateful night? ;-)

Dean


Dean 'Rustoholic' Meltz

Lurch: 1927 1-Ton Chevy Cattle Truck
In the Stovebolt Gallery [stovebolt.com]
Old and ugly is beautiful! -- The Saga [stovebolt.com]
More fun with Lurch [stovebolt.com]

Justin: 1928 Chevrolet AB Canopy Express
In the Stovebolt Gallery [stovebolt.com]
Re: Found this
Csims #1412927 Mon Jun 07 2021 01:06 AM
Joined: Mar 2010
Posts: 9,759
5
'Bolter
Hateful?

Re: Found this
Csims #1412928 Mon Jun 07 2021 01:11 AM
Joined: Sep 2010
Posts: 981
K
'Bolter
Very lucky


kevinski 1954 GMC 9300 Welcome to the virtual Garage [stovebolt.com]
Re: Found this
Csims #1412942 Mon Jun 07 2021 10:31 AM
Joined: Apr 2005
Posts: 2,837
C
'Bolter
A W engine can be made to rev and run IF you have some very deep pockets. Performance Engines in Denton, Texas did many many hours of flow bench work on a friends 409 and eventually got it to dyno 565hp. The exhaust ports/runners had to be DECREASED by 22% and the valve train re-engineered from scratch. Since they were intended as truck engines the bottom end is strong but still ended up with splayed Milidon main caps. Blown one has a complete bottom end girdle and makes 900+ hp. It has a 454 crank and this gives 500ci. Carbed one turns right at 10 flat in the quarter and blown one is in the high 8's. Both in the heavy 62 body. Well over a hundred grand in the two engines.

Very pretty and makes 565hp
[img]https://i.postimg.cc/dkbjSMM3/1213081217.jpg[/img] [postimg.cc]

500ci, 10-71 blower, 900hp, 7500rpm, and no money left in bank:
[img]https://i.postimg.cc/944xxY4x/51-GMC-013.jpg[/img] [postimg.cc]


Evan
Re: Found this
Csims #1413641 Sat Jun 12 2021 05:47 PM
Joined: Feb 2004
Posts: 22,981
H
'Bolter
"There's no substitute for cubic dollars!"

smile
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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