is it really.??? that much of a difference?????




rob....

 

ummmmm a 75 vette with a L48 350 barely any difference

a 1996 LT4 350............................

 

Yes. There's a difference.....a big one.

 

Yea, I have a 91 305 and 89 350 and there is a difference. The 350 has a bunch more torque across the rpm range, no question.

 

no offense, but this may have been the most stupid question I've ever seen on this board.

 

dude light'n up.

 

some people have never been in a sportys car

 

It can make quite a difference, especially if modded. The small valve 305 just can't compete.

 

Be careful what you say. As long as you're willing to learn new things then make no mistake that someday you'll have your turn. Or do you already know everything?

 

take a trip to the local gm dealership and take an f or y body for a test drive, it convinced me.

 

Oh, trust me, I don't know everything, far from! Sorry, didn't mean to jump on the reply, but I would think that is common sense. But to answer bluntly, I cry every time I get in my Lo3 after being in my buddy's 98' Formy. There is a BIG difference. Of course the type of 350 and type of injection setup on top matters, but that is a different story.

 

Unfortunately, Common Sense is not so Common. This, in no way, being your fault.
I remember the day when a 350cid engine was as common as a 4 bangers are today and that was mid 80s. I was a teen with a licence looking for a used car.
Funny thing is that a $55K ZO6 Vette w/a two valve, single cam, pushrod engine gets compared to the best Supercars in the world! And it's a 350 give or take an inch or two.

 

BTW. You should read some archives, just for fun, you know. Some questions get beyond "stupid". They often fall into the "moron" and "imbecile" category. Rarely they rate as far as "Cretin".LOL.

 

hahahahaha.

I understand what you are saying. My dad had a 429 Cobra-Jet when he was in his 20's, but sold it for a 440 Charger R/T, then settled for a 396 Chevelle S/S. Gotta say tho, he never did like that car. Anyway, point being, he laughs at me every time I talk about someone building a "monster" 383, or all the torque a 350 TPI has. He always tells me that his parents family cruisers had more tourqe than any of our cars. HP wise, he just laughs. 400 HP was common then, even net HP, he gives me grief every time I talk about the whomping 240 HP a 5.7 TPI has. I guess age is wisdom!

 

try stepping from a 4 cyl to a 350, thats a real eye opener.

 

i went from a 3.3 v6 to the 5.7 350 and holy **** was it an amazing difference. ill never go smaller than a 350 again

 

Yeah, nothing like inches to make lots of power. I don't know if anyone else has ever been in a Big Block Boss stang, or Boss transplant car, but OMG is that vicious. Makes my car look like an econobox. Especially if they swap out that penut cam for something that will work with those enormous heads. A friend of mine had a '71 SS chevelle 454, Red with Black stripes. There was another car that was just an animal. Notice I said used to have, that's just too much car for a 17 year old. As soon as I start working full time I'm starting the BBC fund. Then I'll get my ZZ502 that I've always wanted.

My dad laughs at my car too, telling me that the 350/350 engine that came in most Novas and Camaros and what and would decimate most cars on the road today didn't get much respect on the street. If you didn't have a Hemi or a Boss or a BBC then you didn't have any business racing.

 

Yeah, but there is also the fact that depending on how long ago you are talking about they also used gross hp instead of net hp. Now days, there are some pretty mean small blocks. I have seen a couple of guys on here w/ fuel injected 383's making in the mid 500 range. I have read that the origional lt1 cars with the carbed 350 which were rated at like 350 hp were actually slower than the 4th gen lt1 cars which were actually only rated at 285. That is probably the reason that to be considered serios for racing you had to have a bb because their technology wasnt nearly as advanced and they couldnt build as many hp per cubic inch. I would like to make a version of the 8.1 big block with the vette in mind and put hi performance heads and cam and such on it. That would definately make the vette something to be reconed with, but I think that gm doesnt want it to loose any of its handling characteristics so I dont see them going from an all alluminum small block to a big block. Anyway, I am just rambling.

Ben

 

I have never driven a 350 car. I have test driven a lot, but never anything better than an LO3 (a LU5 once, but that is WORSE!). My boss has a 3/4 ton truck with a carbed 350 and it is painfully slow.

 

I drove my boss's suburban and that car for some reason flew, YES I floored my boss's car and oh yes... it felt good. I"m gonna do a jump from my honda's 2.2 liter 4 cylinder to my 6.3 liter V8 in a few short months. I"m freaked out like crazy even now cuz of the mods I"m putting on it..... I have got to be one crazy *****

 

Not entirely true. Those cars were havier, less aero-dynamic and don't forget that street tire technology has advanced. Those cars were capable of 13s but actually did 14s and 15s because the first 5 seconds they made really cool peel-outs. Also most people upgraded to headers, diger carb, cam and intake. I beleive both Ford and Chevy had those as an option but would not install them. They came in your trunk!
As far as BBC vs. SBC, you can argue until no end but 350/383 were very econmical as far as performance parts and BBC has considerably more weight. So a 454 had to be really power efficient to compare to a SBC pound for pound. Since alot these cars ran double duty as street/strip vehicles, you got into drivabilty and fuel economy issues, even at relatively low gas prices of the time. As my kindergarden teacher used to say:"you can't have it both ways, unless of course you're bi-sexual"

 

Was your kindergarden teacher bi-sexual? You have got to wonder why someone would be saying that to kindergardeners.

Ben

 

That was an attempt at humor. LOL.

 

I agree with madmax. I have owned both and there is no comparison. The TPI 350 is a beast. Driving the car actually felt like it was being held back. On the other hand driving the 305 TPI, you have to wait until its ready to make power.

 

I loved my 350, but I guess i'm backwards, I went smaller :sillylol:

 

you went smaller????? how does that work?

 

It appears he's using a 3.8 turbo now, correct?

 

yeah, i love this motor but i want to build a nice SBC for another car

 

"There's no replacement for cubic inch displacement...."

 

sure there is

 

Yep. Even more cubic inches.

 

becuase you can never be too big........ (man that sounds wrong)

 

You know what they say: It'sw not the bore, it's the stroke....or something like that.

 

:sillylol: :sillylol: :sillylol:

 

Ok, A real comparison. About a week ago we went to pick up our new 91 L98 350 car from the auction. WE drove to the auction in our LG4 305 86 Iroc-Z. On the way home we messed around. At a light from a dead stop the 305 chirps the tires, the 350 smokes them into a blaze of glory. At about ten mph, side by side the 350 still spins them and then pulls so hard that the 305 looks to be standing still and then just becomes a small dot in the mirror. Doing 75 on the Highway the 305 was coming on hard to pass the 350 when it was side by side I punched the 350 and it looked like the 305 had just hit the brakes and stoped. 350's should of been stock in every thirdgen, with a nice 383 as the upgrade motor.
Extreme

 

Read into some of the old magazine articles on this site, an 87 305 TPI (when new) would stock for stock take any small block 67-69 camaro give technology some credit we can make smaller engines go faster that only says one thing to me WHY NOT MAKE THE SAME IMPROVEMENTS TO A BIGGER ENGINE?????? take the same mods to an engine twice the size and make 4 times as much power

 

The technology is the biggest reason I am swapping to an LS1. More horse power, better mileage, less worries about emissions.