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#1 |
C35 Crew Dually
Join Date: Nov 2008
Location: Belleville Ontario
Posts: 1,116
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looking to swap a 6.2L
Looking into swapping a 6.2L into my 84 C35 Gasser. I have been over on the diesel site and asked a few questions and i'm not really getting feedback. so my main question is What do i all need to do the swap? i know where there is a 6.2L at the bone yard and i can get for fairly cheap.
Thanks for any advise
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If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892 |
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#2 |
Senior Member
![]() Join Date: Feb 2010
Location: Maumelle, AR
Posts: 478
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Re: looking to swap a 6.2L
How bout just buying a 1994-1998 Dodge Ram Cummins 12 valve diesel? No computers or anything. Use a 5 speed manual, you'd be totally computer-free. And you can build one of them to the trees. If you were closer to me I'd sell you the one I have. It's already built to the trees. I don't have any time to screw with it anyways.
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#3 | |
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
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Re: looking to swap a 6.2L
you need engine mounts, converter for a diesel or a manual tranny, rework the wiring, exhurst, 2 batteries, bigger radiator, oil cooler lines and oil cooler
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Thomas Quote:
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#4 | |
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
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Re: looking to swap a 6.2L
also drain your fuel tank or replace them remember the has to have 2 lines 1 feed 1 return and working fuel cab so its sealed or else you will have drain back and have hard starts.
also very importent a Fuel filter get one for a boat or something like that with a water seperator like this ![]()
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Thomas Quote:
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#5 |
Registered User
Join Date: Jun 2009
Location: Fort Erie , Ontario
Posts: 525
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Re: looking to swap a 6.2L
2 minds thinking alike. I just purchased 2 weeks ago a 1989 6.2L diesel for my truck also and this weeks I just purchased a 1993 6.5L turbo top end heads, turbo, exhaust manifolds, injector pump, intake, rad for my 6.2L this week and I am doing the swap myself.
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#6 |
Registered User
![]() Join Date: Dec 2010
Location: Hot Springs, AR.
Posts: 1,215
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Re: looking to swap a 6.2L
If you're gonna go the diesel swap route man, the older 12V Cummins is a MUCH better choice over the 6.2L GM offering! Little harder swap over, but there are several companies out there supplying parts for doing just that. Either way, keep us all updated & get some pics as you go along.
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1977 Chevrolet K30 LWB Crew Cab 497HP Mast Motorsports 6.0L LY6 HO engine GM NV4500 5-speed, Centerforce clutch + NP205 D60 + 14-bolt FF w/ Eaton posi + disc brakes Skyjacker 2.5" full spring lift w/ Nitro shocks Custom paint + interior http://67-72chevytrucks.com/vboard/s...d.php?t=435722 |
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#7 |
Badass
Join Date: Jan 2009
Location: lox. fl
Posts: 4,586
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Re: looking to swap a 6.2L
i agree. 6 in a row is the way to go..
2 less spark plugs too.... ![]() ![]() ![]() ![]()
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Think outside the box? -84c10 (1stcar)→My Build← ![]() -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 ![]() Last edited by 3r!c84; 04-24-2011 at 11:23 PM. |
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#8 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: looking to swap a 6.2L
If you want to go faster then 75mph and have power get a cummins.Talk to http://www.destroked.com/index.shtml or http://www.autoworldmt.com/ If its a 4x4 http://www.avalancheengineering.com/xmember73-91.html
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#9 | |
C35 Crew Dually
Join Date: Nov 2008
Location: Belleville Ontario
Posts: 1,116
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Re: looking to swap a 6.2L
Quote:
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If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892 |
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#10 |
Registered User
Join Date: Nov 2004
Location: big stone gap va
Posts: 83
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Re: looking to swap a 6.2L
I used my stock mounts when I put the 6.5t and nv4500 into my 80 model crew dually. turned the ac box with s10 parts to clear turbo. The fuel filter I used the stock gm parts. Oil cooler lines I had made up at the local hyd. shop, way better than stock gm ones. Rad I used was stock 4 core diesel. If you can find the big thermostat housing for the 6.5 I would use it. The 6.5 and 6.2 are good engines for what they were put out there for, just don't expect alot of speed out of it. My new to me truck I'm gathering parts for will be a 86 crew dually with the cummins and a nv4500.
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#11 | |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: looking to swap a 6.2L
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#12 | |||
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: looking to swap a 6.2L
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Once you come to respect the 6.2, you get sick of people bashing it because it's not a "black smoke blower" diesel engine. It was never meant to be. I love mine, and am more than willing to help you out with whatever questions you have when it comes to the swap. Just remember, it's a diesel (read: totally different way of driving compared to gas engines to get the most out of it). You can't just stomp on the throttle like you can with a gas engine (and that goes for ANY diesel engine). You have to "ease into it" and gradually increase the throttle to get the best response. Black smoke is just wasted fuel and just shows your engine's inability to burn all the fuel you're dumping into the system. It's also based on a GM big block, so it weighs about 250-300 lbs more than a small block. You'll want to beef up your front springs to be able to handle the weight. I went with 3/4 ton suspension on mine and am very happy with it. It bolts right up to everything when you pull your SBC out. Engine mounts, transmission bell housing, everything. You need a diesel specific torque converter (low stall speed). You need to figure out a way to wire in your glow plugs. I used a Ford starter solenoid and push button. You'll need a vacuum pump if you're running a 3 speed automatic transmission, otherwise your tranny will never shift. The exhaust is easy to re-route (if you have stock manifolds right now, you won't have to change anything at all). You need to drain your fuel tank as well as you can, and top it completely off with diesel before you try to start it for the first time. DO NOT EVER USE ETHER / STARTING FLUID. It will destroy your head gaskets faster than you can blink. Any other questions that you run into along the way... feel free to ask!! ![]()
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#13 | |
C35 Crew Dually
Join Date: Nov 2008
Location: Belleville Ontario
Posts: 1,116
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Re: looking to swap a 6.2L
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I don't plan on towing anyhting but if i do it will only be my car trailer that can only fit small to medium vehicles. I'll take pics and keep everyone posted to the progress (will be a long adventure) as i want to buy the motor and tear it apart an re seal it and make it new before installing it.
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If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892 |
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#14 | |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: looking to swap a 6.2L
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You can keep your TH400, as long as the donor truck has a TH400 in it. If it's a 700r4, the torque converters will be different. BUT, if it's a 700r4, get the entire set up. It's better than a 6.2 / TH400 anyway. Better low end response and overdrive on the top end. It's a bit tricky to get the transmission wired in though because of the lock up torque converter on 700r4's. Or, you could always send me the complete 700r4 set up and I'll send you my torque converter for a TH350/TH400... ![]() Don't worry about swapping the entire wiring harness; it really is super simple. You won't have any wires left dangling or un-used. There's 3 wires on the injection pump: 1 is the power wire where your power to coil wire goes, and the other two are wired into a single feed coming from the starter and a sensor on the passenger side of the block for the cold start "fast idle" solenoid. You don't need to hook those up. The alternator wires in exactly as your SBC does. You WILL need 2 batteries. Grab the secondary battery mount out of the donor truck while you're in the junkyard. I use 2 Red Top Optima 1000cca batteries in mine. If you do re-seal the engine like you suggested you might (highly recommended) don't forget to have the injectors cleaned and rebuilt. And, get a new harmonic balancer. It'll save you a huge headache in the long run. IMPORTANT... I completely forgot about this until just now. Get brand new starter bolts (they're a metric thread, but you can get them at any auto parts store in the self help aisle). I snapped one off inside the block and had a hell of a time drilling it back out. They stretch over time and weaken.
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#15 | ||
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
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Re: looking to swap a 6.2L
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Thomas Quote:
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#16 | |||
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,951
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Re: looking to swap a 6.2L
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Since this is coming from a donor truck... I'd grab the wires from the firewall terminals to the Temp, Oil, Alt, Injection pump, glow plug relay, and AC if you have it. The Packard terminals slide right out of the firewall plug when you release them. Wear gloves the firewall plug is greasy and nasty. Quote:
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Last edited by hatzie; 09-24-2011 at 07:50 AM. |
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#17 | |
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
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Re: looking to swap a 6.2L
his is a 1ton and allready have hydroboost, so he can just leave the pump and mount it on the 6.2
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Thomas Quote:
Last edited by GmtGmt; 04-25-2011 at 02:06 PM. |
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#18 | |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: looking to swap a 6.2L
Quote:
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#19 |
C35 Crew Dually
Join Date: Nov 2008
Location: Belleville Ontario
Posts: 1,116
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Re: looking to swap a 6.2L
lol he beat me too it yeah my beast has hydroboost. but thanks for remembering and posting. this will be a great how to thread for people who want the swap.
__________________
If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892 |
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#20 | |
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
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Re: looking to swap a 6.2L
yup
im highly considering swaping the 400 smallblock from the step side i bought for 6.2 diesel or shoe horn a Detroit diesel 6v53 into it
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#21 |
Registered User
Join Date: Nov 2009
Location: Antigonish Nova Scotia
Posts: 213
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Re: looking to swap a 6.2L
thanks for the info on the swap, im gonna go the 6.5 route if i can find one..it seems like a fairly straight forward swap from what im hearing, is it any different when the 6.5 is turbo?
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#22 |
Registered User
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
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Re: looking to swap a 6.2L
Turbo package will not clear A/C box in a factory square.
Turbo motors use different injectors, lines, and injector pump. I get 22+ MPG in my 87 C10 with 6.2 and 700R4, with at least 1 bad cylinder. Just think of it as a low revving 305 and drive accordingly. If you keep the TH400 you just need the vacuum control on the side of the injection pump. IF you go to a 700R4 it has a kind of complex linkage that is best robbed off a donor. In fact, the easiest way to do the swap is to find a rotten donor truck and just swap parts.
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1987 2 ton ![]() 1982 ![]() Dad's 1981 ![]() Plus a mess o' tractors |
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#23 |
Registered User
Join Date: Jul 2011
Location: Livingston, Montana
Posts: 107
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Re: looking to swap a 6.2L
Will a 6.5 Turbo bolt up to my transmission? It's a 4L80E. I found a complete 93 2WD 6.5 TD donor truck with only a bad trans.
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84 K10 Custom Deluxe: 350 crate engine w/ 4" lift |
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#24 |
C35 Crew Dually
Join Date: Nov 2008
Location: Belleville Ontario
Posts: 1,116
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Re: looking to swap a 6.2L
[QUOTE=ky_kid;4914843]Will a 6.5 Turbo bolt up to my transmission? It's a 4L80E. I found a complete 93 2WD 6.5 TD donor truck with only a bad trans.[/QUOte
What trans is in the donor truck and what trans is in your's?
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If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892 |
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#25 |
Registered User
Join Date: Jul 2011
Location: Livingston, Montana
Posts: 107
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Re: looking to swap a 6.2L
Not sure but I know it's an automatic. I'll have to check... I suppose it has to be the 700-R4 (4L60E) or the 4L80E
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84 K10 Custom Deluxe: 350 crate engine w/ 4" lift |
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