Well you're right. I went back and remeasured. Three times. I don't know how I screwed the first measurement up. I've been up all night.....maybe that's it.
Intake -95CC's
Exhaust - 64CC's
I Might Have Found Something Pretty Cool.....
- Thread starter RustyRatRod
- Start date
-
Well you're right. I went back and remeasured. Three times. I don't know how I screwed the first measurement up. I've been up all night.....maybe that's it.
Intake -95CC's
Exhaust - 64CC's
diymirage
HP@idle > hondaHP@redline
Just for fun, would you want to remeasure the chamber volume?
Perhaps there was a flow in your formula across the board
(Thats the way I balance my checkbook, I just keep doing it over and over untill I get a number I like)
Shut up dummy. lol
- Joined
- Mar 17, 2018
- Messages
- 13,279
- Reaction score
- 30,091
E49( I think) Charger? Australia version? No actual idea, total guess from left field. But the Australian RT Chargers had some nice power for Hemi Slants.
Valleyant
Valleyant
The 6 cylinder in the Valiant Chargers (Australia) that you are thinking of were not Slants unfortunately. Do a youtube search on TuffR6 and Mirabito performance to get acquanted with the Australian mopar 6. They did have the Slant 6 in Australia also but with nowhere near the power of the 265 Cubic inch "Hemi".
Last edited:
That is by far the coolest. You got a unicorn for sure. That has to be used on vixen, you will be a legend. Haha I met a legend who owns a unicorn.
diymirage
HP@idle > hondaHP@redline
LOL. Opinions vary. Yup. That's the plan now is to get it worked, 318 valves installed, get it ported the snot out of and sling it on my long rod 225. It will have to have a pretty massive camshaft to help keep dynamic compression in check so it's gonna sound nasty. LOL
I got the head apart and am going to drop it off at the sheen shop today or tomorrow.
The head is at the sheen shop. Dropped it off tonight. Will update when it's done. Then it's off to the porter.
CNC-Dude
Well-Known Member
It's a shame to think of all those cars or engines that possibly have been scrapped when people saw that same casting number on the head and thought, "that's just an old Slant, haul it off"! Not knowing it was really a unicorn like yours....
Entirely possible. I could well be guilty myself. I've scrapped a few.
mopowers
Well-Known Member
Rob - didn't you just build a cylinder head for that motor? The one you shaved a half an inch off. lol
That head is for what I call my "for now" motor. In other words, the motor to get the 225 and A230 transmission IN the car. I'm going to put this closed chamber head on the long rod motor. The for now motor has a stock bottom end. ...and it was only a little over 1/8". LOL
mopowers
Well-Known Member
So, you've got the 'for now' motor, the long rod 'for later' motor, and the big block 'for really later' motor that you're building motor mounts for? LOL My god - you have the same illness I have.
Yeah and it's contagious too. I'm almost 100% certain I will be offering the big block for sale after I do the mockup and show step by step how I did it. That was my whole point of doing that, because there's SO little on the net about early A body big block swaps. People think it's impossible but it's far from it.
diymirage
HP@idle > hondaHP@redline
mopowers
Well-Known Member
So, you're going to go through the trouble of "mocking up" a big block in your early valiant, just to turn around and yank it back out.
So, you're going to go through the trouble of "mocking up" a big block in your early valiant, just to turn around and yank it back out.
Most likely, yes.
LocuMob
Fluid Technician
After you test the durability of the finished product, I'm sure. To know you did it right.
Richie said it took only .010" to clean up. That's a blessing. lol He also started fitting the 318 valves as you can see.
Last edited:
Following just for the cool factor
Did you lay a head gasket on it for the heck of it and make sure all the water passages and such were the same as a "normal" one? (I'm not familiar enough with the inside of a slant to tell from the pics) they probably are. Just one of the first things I would have done for my own sanity lol.
Did you lay a head gasket on it for the heck of it and make sure all the water passages and such were the same as a "normal" one? (I'm not familiar enough with the inside of a slant to tell from the pics) they probably are. Just one of the first things I would have done for my own sanity lol.
Yup. Sho nuff. The head is different, though. It's thicker than any of the other heads I have here. I surmise that was on purpose, to keep the chamber the same volume as the open chamber heads, because it is the same size. There is a measurable difference in the chamber depth as a result of that. I'm glad it's the same size, too, because if it had been small by a good bit, I would have had to change over to the dished turbo style pistons to lower compression. As it is now, it will work well with what I have.
Naw. It ain't "that" much thicker.
Stock unmilled head was 3.614, closed chamber head was 3.625. It's a small enough difference it may not have been intentional. Now after milling the closed chamber head new thickness should be 3.615.
-
