ValiantKevin
Well-Known Member
Messaged ya... I think my 3.23 will be to tall for my liking lol
Quick... which way's better (225/273)
- Thread starter ValiantKevin
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Not directly, OP asked about 300 hp /6, 273 or wherever, you said 360 or stay /6, so if the OP says no to 360 that only leaves 300 hp /6 over a 273 in your stated options
I don't see a /6 having more torque potential than a 273. Torque is Cid which 273 automatically wins and VE% and efficiency don't see a /6 having a clear advantage of even one especially both of those.
Op is asking about modified, 300 hp.
YET ANOTHER annoying story from the old days. After I got out of the Navy, around 75, we were still a country with inflation/ gas prices/ problems. About that time I bought the old landcruiser, and decided to put "something else" in the 70RR which at that time had a 340 swapped in, and was needing some work. To keep the RR mobile I bought a "318" for 50 bucks from a friend, which turned out to be a 273!!!! But we dumped the oily damned 2bbl thing in there anyhow. Put the headers on 'er and drove it.
A friend had a 49 GMC pickup, and had built this bored 250 Chev with a 4bbl, headers, cam, it was (according to him) the hottest six you would ever see.
The 273, which used some oil, was a bone stock 2bbl, except for the headers.
At some point some friends and I had a group trip from Sandpoint to Coeur d Alene, some 45 miles. Anyhow, along the way, we got into a friendly little uh, contest. And the 50 dollar 273 kicked that GMC's *** BAD. BAD, BAD!!!! Every time I felt the inferiority was washing off, I'd ask him if he wanted to race a 273.
Bear in mind this was in a 70RR, formerly a 440-6, so it still had the Dana 3.54, the 18 spline "hemi" gearbox, and heavy suspension and front disk brakes. That thing weighed something like 3860 with the 440 in it
A friend had a 49 GMC pickup, and had built this bored 250 Chev with a 4bbl, headers, cam, it was (according to him) the hottest six you would ever see.
The 273, which used some oil, was a bone stock 2bbl, except for the headers.
At some point some friends and I had a group trip from Sandpoint to Coeur d Alene, some 45 miles. Anyhow, along the way, we got into a friendly little uh, contest. And the 50 dollar 273 kicked that GMC's *** BAD. BAD, BAD!!!! Every time I felt the inferiority was washing off, I'd ask him if he wanted to race a 273.
Bear in mind this was in a 70RR, formerly a 440-6, so it still had the Dana 3.54, the 18 spline "hemi" gearbox, and heavy suspension and front disk brakes. That thing weighed something like 3860 with the 440 in it
Thanks! I get accused of it being a 318 or 340 all the time. I have to literally raise the hood to convince them.
Man, those were the days. The things we did when we didn't have 2 nickles in our pockets.
Wait a minute, I still do that !
MidnightSwinger
Well-Known Member
Talking to you is like slamming my head into a wall.
I made a statement that I would never pay money to swap a 273 into a 67+ A body. You brought up potentialities, not me.
Everyone here knows you think the 273 has gilded tits and a sweet nectar hole. I disagree wholeheartedly.
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harrisonm
Well-Known Member
Although I do like V8 engines, I do have to agree with Rusty rat rod on this issue. Some of the neatest encounters I have had with people at Mopar car shows was somebody who had a slant six car that was pretty much untouched and original. They love driving the car, they love the attention it gets, and even though they are surrounded by hemi Cudas And other awesome big power Mopar’s at a Mopar show, those /6 cars get quite a bit of attention. I talked to a young kid one time (25ish) at a Mopar show for about 30 minutes. He was so excited to show me everything about his bone stock slant six 4 door car. Although it was pretty much original and a little rough around the edges, he had done a beautiful job of detailing it inside and out.
Again everyone counts out a 318..... I don't get that either
That's cool stuff right there. That's how this hobby will keep goin.
Neither, too many better options for the same amount of coin.
I don't if I just wanted a cruiser, I'd drop in a mid 90's 5.2
You said build 360 or /6, I said I agree with 360 but not 300 hp /6 a 273 would be better that it. Your the one keeps asking me questions now getting all pissy cause I'm answering you.
I don't care if you would do a 300 hp /6 over a 273 and don't care if the OP ends up deciding to go that way after going over the facts, It's his car and decision all we can do is hopefully give the OP good info to help his decision, I'm not trying to turn you into a 273 fan.
I'm not saying 273 the greatest choice, it's just way better than trying to do a 300 hp /6.
To me people try to over sale the cons on eg.. 273, 318, 383 etc.. sometimes it's even a 340/360, I just try to paint a realistic picture for the OP that don't mean I'm endorsing or saying 273 is best option, but for 300 hp a 273 way better than a /6 but obviously larger would be generally be better eg.. 318, 360 or whatever.
Stop asking me Question if you don't want me to reply
318 be a good choice especially for 300 hp, slightly bigger than the hp target, should have a good rev range, at street able rpms.
MidnightSwinger
Well-Known Member
I’ll do you one even better! The only thing I’ll say in response to your gibberish, is I’m not being pissy, you are just a Cunt.You said build 360 or /6, I said I agree with 360 but not 300 hp /6 a 273 would be better that it. Your the one keeps asking me questions now getting all pissy cause I'm answering you.
I don't care if you would do a 300 hp /6 over a 273 and don't care if the OP ends up deciding to go that way after going over the facts, It's his car and decision all we can do is hopefully give the OP good info to help his decision, I'm not trying to turn you into a 273 fan.
I'm not saying 273 the greatest choice, it's just way better than trying to do a 300 hp /6.
To me people try to over sale the cons on eg.. 273, 318, 383 etc.. sometimes it's even a 340/360, I just try to paint a realistic picture for the OP that don't mean I'm endorsing or saying 273 is best option, but for 300 hp a 273 way better than a /6 but obviously larger would be generally be better eg.. 318, 360 or whatever.
Stop asking me Question if you don't want me to reply
Lol, whatever.
Always play nice
The 273 is a great engine,,,,,however,,,don’t count out that /6 .
They don’t really get much respect,,,,but in the right hands,,,,with good parts .
They can embarrass many V8 owners .
I’m certain that RRR could wound peoples pride if he wanted,,,,,it sounds wicked !
At one time Mopar offered a ton of hop up parts for the Slant !
Just about anything you could need to race a Slant .
I’m sure some of it is still floating around out here somewhere .
Last night at our cruise in a friend of mine was in his 72 Duster with a Slant .
Very clean car,,,,very original,,,maybe 90 % under the hood .
His engine has a beautiful chrome valve cover,,,,,I’m guessing Mopar Direct Connection from back in the day . ( Heavy gauge metal,,,and thick chrome,,,,looks immaculate ).
The engine is all stock except for the valve cover .
Tommy
They don’t really get much respect,,,,but in the right hands,,,,with good parts .
They can embarrass many V8 owners .
I’m certain that RRR could wound peoples pride if he wanted,,,,,it sounds wicked !
At one time Mopar offered a ton of hop up parts for the Slant !
Just about anything you could need to race a Slant .
I’m sure some of it is still floating around out here somewhere .
Last night at our cruise in a friend of mine was in his 72 Duster with a Slant .
Very clean car,,,,very original,,,maybe 90 % under the hood .
His engine has a beautiful chrome valve cover,,,,,I’m guessing Mopar Direct Connection from back in the day . ( Heavy gauge metal,,,and thick chrome,,,,looks immaculate ).
The engine is all stock except for the valve cover .
Tommy
This
or this
I raced this Slant (NA) for years.Did several Slant cars. Why ? Cause I wanted to.
Not cheap to go 12's.Gears make 'um go. As I stated if budget allows go for it.
I did suggest doing the 273.My avatar photo is a 68 Valiant 273 from a few years ago.Ran good on the cheap.
Never know till you try 'um all,Slants to Hemi's.
Not cheap to go 12's.Gears make 'um go. As I stated if budget allows go for it.
I did suggest doing the 273.My avatar photo is a 68 Valiant 273 from a few years ago.Ran good on the cheap.
Never know till you try 'um all,Slants to Hemi's.
Fact is, we all find our fun whee WE find it!
Like some peeps like blue, others red, and some black/ or some like ........
I have had them all over the decades, and found fun and enjoyment from slants to hemis and all in between.
For the guy that does not have experience with them all, I vote go that 273 IF it is a good engine and not junk!
Like some peeps like blue, others red, and some black/ or some like ........
I have had them all over the decades, and found fun and enjoyment from slants to hemis and all in between.
For the guy that does not have experience with them all, I vote go that 273 IF it is a good engine and not junk!
Oldiron440
Big blocks rule small blocks drool!
If you spend the same amount of money on a small block that you will on the /6 you could have a 12 second ride, two seconds faster than the six.
You need to realize that the/6 will cost you more to build and only have 50 to 60% of the power with none of the durability of a NA small block.
You need to realize that the/6 will cost you more to build and only have 50 to 60% of the power with none of the durability of a NA small block.
If the goal was 175-250 hp and didn't mind spending good money to get there and really liked the idea of running a /6 then I could see picking /6. Turbo is an option but I've seen a few who had problems getting them to work, depends on the OP's skills. But if wanted the least hassle way go, V8, 360 probably be best to 273 least, a running 5.2/5.9L magnum basically make 300 hp with 4bbl and headers add cam for another 25-50+ hp.
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