REOGasMackDiesel

I hope so, I love Mack trucks ! I also love military trucks too ! My specialty seems to be the rare and hard to find trucks, So the REO brand 2.5ton gas engined trucks and the Mack brand 5ton diesel trucks are my favorite ones. They are also the hardest to find ;o( I got myself the super rare 1953 REO M48 2.5ton 6by tractor with dual winches on it. So now I'm looking for a Mack brand M52a1 5ton tractor. The Jeep brand truck with Mack powered M-Series is hard enough to find, Now I'm looking for the MACK branded one. Only built '73-'75 in small amounts, So they are tough to get ahold of ;o) I love the challenge. Mike

I have used Farm & Fleet or Interstate as a plan B option. I love those Farm and Fleet batteries they last 10+ years. Mike

Well the 1975 Mack M52a1 I thought I was going to buy ended up being the one my great uncle drove on the family farm. He was to end up with but they sold it on him with the rest of the machines and trucks. So I let him buy it up ! I'm still Mackless ;o( Mike

I found it, Its a Mack powered Jeep unit. Very nice shape good price. I will be contacting seller ASAP ! Thanks much Mike

Is it a Mack tractor ? M52/a1/a2 ? ! Sounds like a steal for a Mack unit. Mike

My great uncle guessed the turbo charged 711 diesel at 230hp/680tq he figured. He said it was an impressively strong pulling engine, Just had to watch the rev's they didn't put up with lugging. He said the one he ran loved being run up to 2200rpm than shifted and pulled like a snorting beast. he was running one swapped into an army truck in place of blown ENDT673 so it only had a 5spd manual so it had to be rev up to avoid lugging it. Mike

The M54 cargo is a nice rig to, I like tractors so I am looking at M52's ;o) I found this one, but my great uncle just snatched it up from under me. Turns out it was the exact tractor that was on the family farm and they auctioned it off on him when the farm and equipment got sold off. So I let him have it, Now I'm back on the hunter for a M52 Mack ! If this Mack-350/7spd can be done maybe I will adjust mt search for an M52a2 Multifuel instead of altering a nice original Mack unit. If I need more hood room I might look at an M818 tractor instead, Those have the 250hp 855ci I6 Cummins. Mike

I think I am confusing you, The 711 turbo came from a B-Model Mack yes. The truck its mounted in is an Mack Military truck an M52a1 which was originally powered by an ENDT-673. M52 series 5ton 6by truck tractor. M52 = LeRoi-602 I6 gasser. M52a1 = Mack ENDT-673 diesel. M52a2 = Conti-MultiFuel 478ci. The old owner had the 673 fail and replaced it with a 711 turbo which eventually puked out. I wanted to know about a Mack-350 transplant ? Mike

Oh I'm sorry I didn't post what rig. Its a 1975 Mack M52a1 5ton 6by tractor. It came with an ENDT-673, This truck later got the 711 replaced with a turbo charged 711 that came from a wreck '63 B81 . . . When the oil drain plug was pulled just recently on the 711 which sat a few years, 2 gallons of water poured out ! Was kicking around the idea of picking it up and doing a little updating. Replace the engine and transmission, and updating the wheels and tires too. 711/5psd to 350/7spd ? ! Than switching the 11.00-20s 43.7" for 12R24.5s 45.7" on painted steel wheels. Sorta kicking tires and window shopping at the moment making sure I know a good bit of what I need to ahead of time. Mike

I'm looking for ten 11.00-20s, I'm looking wildly aggressive tires. T831's or Super All Tractions, This whole $600/tire is crazy expensive ! Mike

I've heard lots about this "Mack-350" but nothing on what engine model they are ? Like "END" or "END-T" for example. I'm told it makes 350hp/1,350tq for power output but nothing about Cubes or liters ? Can these be used in place of the 673/711 diesel engines ? Mike

Tread wright sells re-cap/re-tread tires from 15s up to 19.5s. A friend of mine ran these retreads at all 4 corners on his S10-Blazer and actually wore out 3 sets of them. Apparently these mold cures are legal on vehicles with 4,500lb and lighter GVWR's anything heavier is for the rear wheels and trailers only. I have 2 of these on the rear of my Jeep Comanche which only 2 wheel drive, I still wouldn't run Re-cap/Re-tread tires on the steer axle of anything. My Jeep is over the GVWR light its a 6K-LB GVWR rig so I couldn't anyway. Mike

Well thanks for the welcome just the same. Mike

So I'm guessing Mack never released any power numbers for the turbo charged 711 ? I haven't seen but 3 of them so I guess they number very few ? ! Mike

Thanks for the engine info, 170-250hp for the 673 diesels and 211hp for the 711 diesel. I'm guess there isn't a power rating for the the 711's that got the turbo retro-fitted ? I tried the link got me to a PDF file on B-Mack engine data my phone won't open it for some reason I am a mobile site user so some of the site may not work for me ;o( Anywho, Thanks for the info guys Mike

Sounds like a great group of people ;o) I'm glad I joined up ! Mike

I was wondering what the power ratings were for the Thermodyne diesels ? The END-673 ? ENDT-673 ? The END-711 ? END+T 711 ? Now I am new but I do know the 711 didn't have turbo's, They were a later add on/update or "retrofit" Mike

Hi all, I'm Mike I am going to ask a bunch of silly questions I am sure. I want to learn all thing Mack 1900-present day more so vintage ;o) Mike