What would You Choose and More Importantly WHY?

Which would you choose and WHY

  • HiPo slant/904

    Votes: 2 3.8%
  • HiPo slant/833

    Votes: 15 28.3%
  • HiPo slant/A500

    Votes: 0 0.0%
  • 273/235 904

    Votes: 5 9.4%
  • 273/235 833

    Votes: 27 50.9%
  • 273/235 A500

    Votes: 4 7.5%

  • Total voters
    53
  • Poll closed .
-
I own a 273 with a 904, a 273 with the 4 spd, a 225 with the 904 and recently sold my 225 with the 833. The car that is most fun is the 273/ 4spd.
 
T5s are cheap. Figuring out a bellhousing would be the most difficult part......and it just "ain't" that difficult. And from 85 on up, the first gear ratio in the T5 is 3.35:1. It also has a .68 OD ratio.

3.35, 1.99, 1.33, 1.00, .68. Better ratios than the 833 OD.......at least better for the slant.

Hear are the 833 OD ratios:

3.09, 1.67, 1.00, .73

The T5 has a shorter jump from 1st to 2nd and has a better OD ratio. The slant would respond better with the T5.
T5 has a useless first granny gear, Its very notchy compared to
a A833, if the car has any low end wont need T5 , and an engine of this power wont be able to pull and 0.68 over drive
in hilly roads.
 
T5 has a useless first granny gear, Its very notchy compared to
a A833, if the car has any low end wont need T5 , and an engine of this power wont be able to pull and 0.68 over drive
in hilly roads.

My 75 F250 has a 6.72:1 first gear and I use it every single day. Far from useless.Irealize it's a different application, but nonetheless......

Have you ever had a T5 behind a slant? I have a friend with a T5 behind a Ford 250 straight six in a Maverick. Stone stock. ONE BARREL. It's a really neato ride and does none of the things you suggest. It's a fair comparison, which is why brought it up.

Wilcap says they can make a bellhousing for around 1200 bucks. It ain't cheap, but it would certainly be different.
 
273/833 since it is the closest to my combo of 340/833. slants are awesome but you cant beat the sound of a great v-8 imo.
 
give me the V8, and I really don't care what tranny (I voted 833). I guess I just like the V8 sound with dual exhaust. 2nd hand parts are far more common for the V8, plus options of aftermarket are plentiful. I like the idea of the V8 already in there, because I doubt the 273 would stay :)
 
I chose the 273 and the 833 4 speed.
Why?
Because i think it would be a lot more fun and seeing that you have all of the stuff already, it would be an easy installation.
 
Like just said, you can not go wrong with a good v8 and 4 speed. BUT a more door with hottish slant and 4 speed for me. I am old and old school.
 
I voted 273/833, but a 904 would be fine too. My Skylark, Firebird, and Mustang are all lazy V8 automatics, and I always miss their effortless power on the freeway or when I'm passing on a two-lane road. The 225 in the Dart is always comparatively straining...I love my Dart, but I'd love it more with a 273.

With that being said, I'll probably never do a swap because it's all right for what it is, although an 833 would go a long way toward making me enjoy it more over the wide, wide ratio 170 3-speed gearbox that's in it.
 
273 hp 833 smooth crisp and responsive also have 273 hp 904 cool set up as well but a bit boring.
 
I went 273/904 because you can build the heck outta the 904, and dress up the 273 with the proper valve covers and air cleaner, which I know you have stashed, and have yourself a whole lotta fun!!
 
My Hp 273/4 speed/3:23 is a great combination. It is a spunky combination it is not a powerhouse. It's all about what you are looking for.
 
LMAO no need to use any stash, just keep it original 2 =1966 273 commando Formula S one auto one stick but might be working on #3 Retirement is great.
 
Last edited:
225 built for torque.

Stage 1 904 with V8 guts and shift points matched and adjusted to engine, along with torque converter matched to engine.

Most important, pushbutton 904 :steering:
 
My 69 Coronet has a 440 and 727; the Dart has a 360 with a T5 and 4.10's. Even though the Coronet puts out well over 100 hp more than the Dart with a ton of torque, I still enjoy driving the Dart more because of the manual. Life's too short to just select D.
As for engines, in my situation it would be the /6 just to round out the engine types in my garage; but if I didn't have the Dart I would go with the V8.
 
Let's assume the following senario: you've acquired a decent early A - say a Mordoor with no engine or transmission. It came with LBP discs and an 8.25 rear end with let's say 3.21 gears. You own 2 motors to choose from - both rebuilt - a 66 273/235 and a high performance slant from another car that was dynoed at 215HP. You possess manifolds and/or headers for both motors. You have numerous transmissions choices - both slant and LA 904s, 833 with both slant and LA bellhousings along with the parts to install either and finally an early Dakota A500 (you possess a slant to 727/904 adapter). So which would you choose and WHY?
I cast My vote for the Slanty & 4spd., unless You're really concerned about fuel economy skip the OD. I swapped one into My 383 Dippy w 4.89's (for obvious reasons) and
I hated it, shifted clunky and the gap in gears was noticeable even w/a B engine & those gears. My '69 Dart got street raced relentlessly, and every close race I won it was
grabbing 2nd gear that made the difference, I would almost always pull the distance on them in 2nd gear and keep it.
 
Let's assume the following senario: you've acquired a decent early A - say a Mordoor with no engine or transmission.

The senario did not pan out (car was sold just not to me) but the 273/235, built slant and, a slant under construction, and the numerous listed transmissions and conversion parts are still available. I still have my 65 Dart wagon and my 47. I was leaning towards a slant/833 in the wagon but may rethink that based on the comments. I was leaning towards the V8/A500 in the 47 but quite a few members on a couple of other forums I'm on said use the slant/904 (or keep and build up the flattie in the 47 as a V8 swap is so common. So I've made no final decision for either other than I will use what I have on hand. I may ask a mod to close the thread and open a new thread for opinions for motor/transmission for the 65 & 47. Until then, your comments and thoughts are always welcome on this thread.

get the biggest engine you can with the best tranny (i choose the A500 for the 4th gear, if the car has 3 pedals (wasnt mentioned) the 833 is good too)

plus this way, the car is ready for a 408, once you get serious with it

My banker says no way I can afford a any kind of stroker and the 273 or slant is as serious as it's gonna get lol!

I took it as using what he has,

You are correct!

Here are my reasons:
1. The slant will seem like enough power for a bit, but most likely you’ll get bored, so the 273 sets you up easier to grow. Either in engine mods or a bigger small block.

See my response to diymirage!

I think he's looking at these options because he already has all those components.

Yes, that's correct!

I like the idea of the V8 already in there, because I doubt the 273 would stay :)

No other V8 options and no money for anything else!

Because i think it would be a lot more fun and seeing that you have all of the stuff already, it would be an easy installation.

I have everything for either option!

I went 273/904 because you can build the heck outta the 904, and dress up the 273 with the proper valve covers and air cleaner, which I know you have stashed, and have yourself a whole lotta fun!!

I do have one more Commando dress-up kit!

Most important, pushbutton 904 :steering:

No pushbutton 904s in stock! Gotta use what's on hand unless someone gives me a T5 conversion
 
Last edited:
66 Dart - in a way i’m Kind of happy it turned out this way as i’m not really a fan of the 66!
In that case, I may have voted the 273/833 combo, but not knowing I went with the Slanty in case it was Toad City...:)! Hey, get a chance to check the rear in the parts
car yet?
 
-
Back
Top