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06-16-2018, 09:09 PM | #1 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
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06-16-2018, 09:38 PM | #2 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
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As I recall, the cam was a Comp Cams 268 duration. The heads were 049 castings and the intake was a Performer RPM 2.0. With 4.10 gears and the 1:1 4th gear, you're engine is going to be spinning pretty good at highway speed, even with 33" tires, about 2,700 rpm. When you go to the NV4500, you'll be running at 1,950ish rpm at the same 65 mph. Obviously, the closer you can get your torque peak to cruising speed, the better off you will be for economy. -Joe
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06-08-2018, 01:22 PM | #3 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Nice clean install.
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06-09-2018, 08:32 PM | #4 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Thanks, I think it is simple and will work good
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06-09-2018, 08:41 PM | #5 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
I made my exhaust system today. I used dual 2 1/2" tubing into a merge collector to single 3" tubing, through a large straight through chambered Magnaflow muffler, then turned out underneath where the bed step will be. I'll put a nice tip on it after I get the bed mounted. I also put shims in to adjust the pinion angle, and mounted the electric fuel pump in front of the tank and even with the bottom, but I didn't take pics of that. So I did get my goal met this weekend of getting the tank mounted and the exhaust made, and a couple other small things. Maybe one of these years, I'll actually get to drive it! I think my next item to do will be making my fuel lines and brake lines, and get the brakes bled and working.
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06-09-2018, 08:43 PM | #6 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
A couple more...
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06-10-2018, 11:27 PM | #7 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
nice exhaust, I hope it sounds good
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06-11-2018, 11:20 PM | #8 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Thanks, I hope so. Hopefully it's not too loud. It should be ok since the muffler is a large 3 chamber with mesh packing, and over 40 inches long. I'm hoping it's a fairly mellow tone. One of these days I'll find out.
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06-16-2018, 12:45 PM | #9 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Nice work! that should flow nice and sound great.
-Joe
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06-28-2018, 09:06 AM | #10 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
This will be (is) amazing!
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
07-04-2018, 12:32 PM | #11 | ||
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
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I've been driving with the 4.10s, SM465/NP205 and 33" tires for a week or so now. It does great for my normal day to day driving which rarely gets above 50mph. 1st/granny low is useless for me - can't even shift into 1st anyway. 2nd is good for starting off and about the first 50 feet. Also good for crawling through parking garages. 3rd gets you up to speed quick and is perfect for turns. I've got a fairly torquey motor also, and 4th is good for a pretty large range, from sharp curves at ~1500rpm to up to 55-60mph which my tach says is 2500-3000 rpm. I would not be comfortable getting out on the highway where anything less than 70mph is obstructing traffic around here. I've got fairly loud mufflers and an imperfectly balanced drivetrain and driving a sustained 3000+ rpm isn't comfortable due to noise and light vibration. My truck seems to feel most comfortable cruising at around 2000-2500 rpm. I will be attempting to do my NV4500 swap this weekend and I'm looking forward to seeing how that works out. Hope this helps.
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Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500 |
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07-06-2018, 02:05 PM | #12 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
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As to first gear, it was pretty much unusable unless you had a heavy load that you needed to get rolling or you just wanted to idle along in SoCal rush hour traffic. When I was teaching my kid sister how to drive, I took her out on a hill and let her dump the clutch in first gear, to demonstrate she couldn't stall the truck. With that fear gone, the rest came easy. -Joe
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07-08-2018, 03:44 AM | #13 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
olds57
Growing up in Southeastern ID, First gear ( granny or the big hole) and not syncro,,,,, Hauling hay on a single 2 ton flat bed truck we lined the tk straight down the field, grabbed some twin, teeing the steering wheel to the vent window separator . so it would go straight, put it in the big hole the clutch set the throttle what a blast working out gettin good memories Looking good, fun for all. Needs a friend
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07-08-2018, 09:11 PM | #14 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Thats good memories. My Grandad told me stories like this too.
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07-08-2018, 08:56 PM | #15 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Thanks for the info, I appreciate it!
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07-08-2018, 09:08 PM | #16 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Just a couple things to update... I have most of the switches and dash wiring done, and I painted the gauge panel and installed the gauges in it. I should have the dash finished the next chance I have to work on the truck. I also bought a truck bed trailer to use the bed floor. It was a boat trailer with a 73-87 long bed mounted on it. I removed the bed and sold the trailer, so I ended up paying 50 bucks for he bed. I would have used the bed floor from the original 73 donor truck, but it was badly dented and rusted. I'll measure the floor size of my 57 long bed, and cut out this floor to size, then get it installed. It will also use the cross braces, since its going back on a 73-87 frame anyway. I think it will look like it came from the factory with the ribbed floor when its done.
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07-08-2018, 10:58 PM | #17 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
bed floor will look juuuuussst right. I love using the donor bed floor and the mounts, makes it bolt right on and is super strong
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07-19-2018, 12:26 PM | #18 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Yes, and I think it looks better than a wood floor. I'll do the spray liner in the bed like I did in the cab too. I want to use the truck when it's done.
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07-19-2018, 12:29 PM | #19 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
I got most of the dash done. All interior wiring is done, heat/defrost, wiper motor, gauges installed. Still need to install the dome light and 2 under dash lights, and install a glove box insert. Slow progress, as time allows.
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07-19-2018, 03:07 PM | #20 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
That looks FAAABulous! Very clean!
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
07-21-2018, 03:14 PM | #21 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
I wondered about the gauge panel but now that its painted and in it looks great
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the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
07-22-2018, 01:31 PM | #22 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Thanks guys. Yes, I went back and forth about what I should do with the gauge panel. I ended up deciding to paint it, and I like it.
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07-22-2018, 08:35 PM | #23 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
super nice job !!!! i love it
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08-21-2018, 11:58 AM | #24 |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
Slow progress lately between work, and being gone on vacation for 8 days last week. I started on making my fuel lines and brake lines. I buy 25' rolls of the tubing, then straighten the tubing and form the ends, and measure/mark/bend the tubing to shape. Here are the tools I like to use for this to get professional results on custom made lines. The rolled tubing straightener works on tubing from 3/16" to 1/2", and makes nice, straight tubing to start with. The hydraulic flaring tool is a great thing to have, and will make flared ends, bulb ends, and even the GM quick disconnect ends. I have a few different benders that I use, depending on the size and radius I need. Hopefully I'll have all of my lines made before long.
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08-23-2018, 03:37 PM | #25 | |
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Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed
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I don't know what changed, but back in the 1980's, I could use a hand held flaring tool, you know, the cheap one at the parts store, and make good double flares with no problem at all. Now all of the sudden they mushroom over and I am one for four. I guess my luck ran out. Lol! With that setup, all of your hard lines will look like they came from the factory. -Joe
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