From all of your experiences which one normally can take more of a beating? Right now I have a 305 TBI and I am not sure if I should put a 350 in instead or just make the 305 carbed and go from there.

 

man ive had both,gave both hell.a 305 will take alot,but a 350 will take more.im talking about engines that are in good shape.personally i think a 350 has a better bottom end.if youre going carb,definitely go with a 350.later jimmy

 

they are the same engine except for the bore. Same crank, rods, same pistons except for the size. The only thing that would make a 350 handle more abuse would be if you have a 4 bolt main block. Personally I have ran 2 bolt main 350 as hard and harder than the 4 bolt and can't tell if one would be better than the other.

I can tell you this, I wouldn't change from fuel injection back to a carb.

 

Exactly; they are absolutely identical in every way, in that respect.

Which one will last longer is a matter of individual specimens. I'd bet if you took an equal number of 305s and 350s and subjected them to identical conditions, an equal proportion of them, within statistical limits, would fail at any particular length of time.

The factory 4-bolt system is useless against racing or other high-RPM type of abuse. It was meant for trucks. So, in our type of usage, even that wouldn't have a detectable effect.

 

TBI isn't the greatest full injection and im kind of stuck with a money problem. Sure if I had the money I would go fuel injection but carb is a lot cheaper and I will be able to take a lot of **** out without the computer going nuts. Also do 305's rev any higher then 350's?

 

TBI has nothing to do with it.

WHich one revs higher has more to do with the cam, heads, intake, and so forth, than the cubic inches.

 

Alright I am saying a stock 305 vs 350 which one can take more of a beating when rev'd high. Not how high it CAN rev

 

I am going to say that a 305 can take a slight amount more beating(not by much), because the rotating mass is lighter. I will say however, on BOTH engines you are going to run into valvetrain issues and valve float before you hurt the lower end of a sound engine.

 

so what are some suggestions I can do? get a 350 or go carbed on the 305?

 

The last thing I would do is carb an EFI engine. 350 TBI would get you some more torque, but I wouldn't do it until the 305 gives out.

 

I don't want to upgrade a bunch of stuff on the 305 and then have it go

 

Anything worth upgrading to on the 305 can be used later on the 350, if and/or when the 305 dies. If you're worried about breaking things, you've got the wrong hobby.

 

 

headers, intake manifold, carb etc? If I go to a 350 should I stay with TBI?

 

I think we're failing to get the point across....

IN THAT WAY, THEY ARE ABSOLUTELY IDENTICAL. There is no difference.

Whatever decision you're trying to make, that is NOT the basis for it. Wrong question to ask.

The RIGHT question to ask is, if I spend a basket of money, what should I buy to get the most for my money?

The correct answer to that is, throw the 305 in the trash, and spend it on a 350, or a 400, or a LSx motor.

Think of it this way:

Results = $$$$ x CID

Now.... it should be easy see why a 305 is the wrong thing to dump money into.

 

i had a 305 and now have a 350 and i agree that they are basically identical except for the bore, but i can tell you that the 350 will be alot more fun to beat on. more power=more fun. to me, beating on a 305 is kinda like beating on a D16 civic. it just doesnt make much sense. for the power reasons alone i would go 350, they just have way much more potential.

however, if i had a tbi 305, i would carb it, because i hate computers, they are just way more of a pain than a carb. that is just my $.02.

 

I was happy going from a 305 TBI to a carbed 350, but the 305 still ran great at 227,000 miles of abuse. I had a custom cam and chip, edelbrock intake and other mods.... all a waste of money. After all that it ran a little stronger than a STOCK 350.

If the car is meant to have fun, I would have to go with the 350.

 

eh... tbi with fuel injection isnt great, when I first got my car was during last may, me and my father went and tore out my gas tank and replace my gas cinding unit, and was around $210, and the same with my friend who got this beat up old 92 camaro, turned it into bad *** car, but he hate's fuel injection cause something always breaks, or atleast in both his camaro's, and other people had troubles with it.

 

Hey Demon eater, that's a pretty sharp car you've got there, I like those wheels.
Where are ya in Montana? Not many members on here from there.

 

Like has already been stated, anything for the 305 can be used on the 350. You can always do like I'm doing (also on a limited budget). Buy decent headers, intake, carb, cam etc for the 305 and then when it gives it up you can go to a 350 and just swap the performance parts out, kind of a win-win deal when you think about it.

 

My car was a TBI 305 when I got it. The engine was locked up and there was no way I was gonna waste money on a 305. I went with TPI and hand made a wiring harness becuase I didn't have the money for all the good stuff. I have done all there is to do with a carb and have been thinking about changing the 350 in my boat from a carb to TPI. I wouldn't go from a carb to TBI nor would I go from TBI to a carb for a daily driven car.

I had lots of people tell me to stay away from fuel injection when I first started playing with it back before I knew anything about TGO or burning a chip. My point being that the last time those guys with their carbed engine massed with me they couldn't keep up.

Lets not forget fuel prices, if you are gonna drive this car everyday you want to get every mile you can out of that tank of gas. I have never got a carb to do as good as fuel injection when it comes to this.

 

Personaly i think you should just stay with the 305 Tbi. The T.B.Iis a good type of fuel injection. It may give you about the same or a little less than a carb..But it will also give you WAY better gas milage. My freinds Bro owns a 1991 Camaro Rs with a 305 T.B.I and holy crap does this thing rip. I would stay with the 305. Now if you want to go carb..then do it. Get yourself a nice 4bbl holly. Thats my opinion.

 

if u wanna rev high build a dz 302......i saw a 302 chevy crank on ebay....find a good 350 and put that crank in it......have all the stuff balanced.....you will rev to the moon with that bottom end and a single plane intake, provided u have a decent cam

 

awww, geez not that old argument again...
Let it die!

 

Or with a single plane intake and a decent cam on top of ANY bottom end of ANY displacement...

Leave the CID out of it. There's nothing special about the 302. That's why in 1970, it was replaced by a 350 that made about 350/302 times as much power and revved just the same (yes I was there at the time), using the same heads, cam, and intake.

 

There's another way to look at this - for a given power output, which will take more of a beating?

The answer there is simple (assuming similar build care) - the bigger engine. Why? Because it will make the power at a lower RPM. Lower RPM means it'll put out the power with less stress, therefore for a longer time.

 

ok lets leave the cubes out then.....any engine with a short stroke will make its power band at a higher rpm than a engine with a longer stroke.....he said he wanted power at high rpms so.....a 302 or 327 would be what he is after, i personaly agree that lower rpm power is the way to go.....b/c u wont have to wait to hit your power band and your less likley to throw somthing out the side of your block....it doesnt matter which engine you use, unless its balanced they will all go to the same rpm, its just that the shorter stroked engine makes its power at a higher rpm than the longer.....i know my stuff so dont try and prove me wrong, why do you think a 302 ford can hang with a 350?

 

Groan again!
A ford 302 has the bore of a 350, so it has bigger valves, and flows more air, that's why it's better than a 305. It can't "hang" with a 350 anymore than it could hang with a GM 302 with similar parts in it.
A shorter stroke makes such a tiny difference in it's ability to rev, vs the valvetrain, that it's barely worth mentioning until you're over 7000RPM anyway.

 

Ok.....you win i give

 

No, the shorter-stroked, smaller displacement engine needs to make its power at a higher RPM in order to overcome it's displacement deficit if it's to make the same power as the longer-stroked, larger displacement one. The stroke by itself doesn't impart any magical rev-attaining ability to the engine though.

The Ford (or Chevy) 302 can hang with a Chevy 350 (or Ford 351 if you want) in a dyno race as long as it has a higher powerband (due to the valvetrain and induction system, not the stroke) and can turn faster than the 350. However, there's nothing keeping the builder of the 5.7L engine from making his engine turn just as fast (using the exact save valvetrain and induction parts), in which case it will beat the 5.0L engine.

 

Thank you
I live somewhere far up in the northeast side, very close to ND.
I got the car from billings montana, was at a place called the "used car factory" I came across the place one day and I had to get the car.
was one of the boss's "special" car collection, but I think they were pulling my leg, his son got it from CA somewhere and brought it back.
the rims of the car already was on the car, and alot of people been asking me where to get them, I dont even know where thier found at, but I do think they were called "magnum 500" or something like that... american racing made them, I know that for sure.
and I love the T-tops, five speed manual, and it still has the stock 305 engine, but this summer I hope to get a 350... I just recently got a new job