can a 305 be a fast engine?
07-20-2005, 01:17 AM
#1
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can a 305 be a fast engine?
can u build a 305 to be a fast engine ? cause ive got a 305 and id like to put some money into it but everyone on here doesnt seem to like it,"although mine seems plenty fast".
and if i can get good power what do i need to do to get it ?
ps. somewhere i read about a guy that couldnt even do a burn out on dry cement with his 305, is this true?cause mine can do huge burn outs?without any brakes or popping the clutch!
and if i can get good power what do i need to do to get it ?
ps. somewhere i read about a guy that couldnt even do a burn out on dry cement with his 305, is this true?cause mine can do huge burn outs?without any brakes or popping the clutch!
07-20-2005, 01:58 AM
#2
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Re: can a 305 be a fast engine?
Well, as far as upgrades...it depends on how much money you want to dump into it. Id say things like headers and catback systems are a go, but once you start getting involved in cams and such, you might start second guessing yourself as to why you didnt just do an engine swap to a lt/ls1 or something. Try a few searches.
07-20-2005, 02:14 AM
#3
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Re: can a 305 be a fast engine?
305's are the worst SBC. You can get a 350 for cheap. I'd do a swap with a LT1 carb motor. If not you are making a huge mistake. But its your decision, as mods go Id do headers with cutouts right after the collectors. You dont the catback money back ****. A stout holly carb would help. The a 4.10s ring and pinion.
Thats a good start and would make a nice difference
Post any questions.
Thats a good start and would make a nice difference
Post any questions.
07-20-2005, 08:01 AM
#4
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Re: can a 305 be a fast engine?
the engine doesn't neccessarily make the car fast...
500hp in a poorly set up car won't do crap.
300hp in a well set up car can do amazing things.
the problem with the 305 is that it doesn't have much for aftermarket high end stuff.
it's hard to make power without good flowing heads, which are pretty hard to get for the 305.
not to mention the nature of the bore/stroke makes it a poor canidate for extreme power.
now you could easily built a bulletproof bottom end, the best flowing heads you can find, stick a HSR on it and then a dual stage nitrous kit and make 500hp.
but strictly engine...much harder.
and you say yours seems to be fast...cause that's a relative term. going from a honda to a crappy base model 305 would probably feel fast. going from a 305 to a cammed LS1 the 305 would seem slooooWWWW.
as for the burnout...not much of a comparison. some 305s came with as little as 150hp i think, some with 225. some came with crappy 2.73 gears, others with 3.23s or 3.42s.
not to mention the condition of the engine.
500hp in a poorly set up car won't do crap.
300hp in a well set up car can do amazing things.
the problem with the 305 is that it doesn't have much for aftermarket high end stuff.
it's hard to make power without good flowing heads, which are pretty hard to get for the 305.
not to mention the nature of the bore/stroke makes it a poor canidate for extreme power.
now you could easily built a bulletproof bottom end, the best flowing heads you can find, stick a HSR on it and then a dual stage nitrous kit and make 500hp.
but strictly engine...much harder.
and you say yours seems to be fast...cause that's a relative term. going from a honda to a crappy base model 305 would probably feel fast. going from a 305 to a cammed LS1 the 305 would seem slooooWWWW.
as for the burnout...not much of a comparison. some 305s came with as little as 150hp i think, some with 225. some came with crappy 2.73 gears, others with 3.23s or 3.42s.
not to mention the condition of the engine.
07-20-2005, 09:57 AM
#5
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Re: can a 305 be a fast engine?
if i did go for an engine swap which id like to how much money would it cost on top of buying the engine and tranny?"i can get the engine and tranny for free". but ive never done that major of work on my car before, and will certain engines be a direct fit or will i have to do major rigging?
07-20-2005, 10:14 AM
#6
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Re: can a 305 be a fast engine?
it really depends on what engine and tranny you're looking at
a basic carbed small block 350 or similar and a 700r4 trans, or even a TH350 trans will fit with little extra work.
even some of the readily available fuel injected, turn key crate motors will bolt in with little trouble
i suggest you start with some basic mods that will help you learn and get familiar with your car. if chosen properly, they will swap over to most any engine you decied to run later on after you've gotten some knowledge.
and engine such as this FI 350 would be nearly a bolt in engine, depending on trans type.
a basic carbed small block 350 or similar and a 700r4 trans, or even a TH350 trans will fit with little extra work.
even some of the readily available fuel injected, turn key crate motors will bolt in with little trouble
i suggest you start with some basic mods that will help you learn and get familiar with your car. if chosen properly, they will swap over to most any engine you decied to run later on after you've gotten some knowledge.
and engine such as this FI 350 would be nearly a bolt in engine, depending on trans type.
07-20-2005, 10:22 AM
#7
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Re: can a 305 be a fast engine?
well like i said i can get the engine and tranny for free so i just need to figure out how to switch it and what ill need to make it fit, and i need to figure out which engine to get!
and would like a 454 or some other big engine fit cause if i do do a swap i want alot of power gains from it!!!?
thkzz
and would like a 454 or some other big engine fit cause if i do do a swap i want alot of power gains from it!!!?
thkzz
07-20-2005, 03:15 PM
#8
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Re: can a 305 be a fast engine?
A 305 is basically a 350 except it has a smaller bore. Asking if you can make a 305 fast is like asking if you can make a 327 fast, or a 302 fast, or even a 427 fast.. heck, I can make a riding lawn-mower that would whoop some serious a$$.
So yes. A 305 can be made VERY fast.
So yes. A 305 can be made VERY fast.
07-20-2005, 03:45 PM
#10
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Re: can a 305 be a fast engine?
I relize that I can make 400+hp EASY in an LT1/LS1, which is my main reason for wanting one. Plus, I will be getting pretty awesome gas-mileage 
BUT.. in my current condition, as-is, I think I will be able to hit at LEAST mid 13's if not better.
Think about it; 300hp is 300hp, it doesn't matter if it's your LT1 making it or my 5.0 305 making it
BUT.. in my current condition, as-is, I think I will be able to hit at LEAST mid 13's if not better.
Think about it; 300hp is 300hp, it doesn't matter if it's your LT1 making it or my 5.0 305 making it
07-20-2005, 04:37 PM
#11
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Re: can a 305 be a fast engine?
yea i agree, you can make anything fast...just depends how you put it together...
also it depends on how fast you wanna go? do a few minor things and you can get that car running high 13's with a 305 in it....then maybe get it down to like 13 flat with major upgrades N/A...but thats about it...350 blocks are cheap, if your gonna spend the money to build up an engine, IMO you should start with a good base..
then its all about practality...you can build a 12 second car, and get 5 miles to the gallon, the hard part is making it streetable...much like my car...this winter i was confronted with tons of ideas...i could've went the easy way, get an air gap intake, 750 carb, and cam, and boom i'd have a 400 hp+ motor, then thro some 4 10's in the rear and i'd be running low 12's without a doubt....but i opted for the HSR instead and probably have like 1200+ into my intake alone, opposed to the 400-500 total i'd spend on a carb setup...
its all about what you want in the end, and your gonna have to make comprimises between form and function...
also it depends on how fast you wanna go? do a few minor things and you can get that car running high 13's with a 305 in it....then maybe get it down to like 13 flat with major upgrades N/A...but thats about it...350 blocks are cheap, if your gonna spend the money to build up an engine, IMO you should start with a good base..
then its all about practality...you can build a 12 second car, and get 5 miles to the gallon, the hard part is making it streetable...much like my car...this winter i was confronted with tons of ideas...i could've went the easy way, get an air gap intake, 750 carb, and cam, and boom i'd have a 400 hp+ motor, then thro some 4 10's in the rear and i'd be running low 12's without a doubt....but i opted for the HSR instead and probably have like 1200+ into my intake alone, opposed to the 400-500 total i'd spend on a carb setup...
its all about what you want in the end, and your gonna have to make comprimises between form and function...
07-20-2005, 05:07 PM
#13
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Re: can a 305 be a fast engine?
Eh.. theres a list and a half.
cammed it, some intricate head-work done, Performer intake, Performer 600 carb, custom 80-Series catback, hi-flow race cat, dual-snorkel intake, and some gold old Fashioned Headers. Oh ya.. and a new vacuum advance distributor.
If I want to bump that to 400+hp, I am going to get a dual-electrical high-output fan system, new lighter and hi-perf. radiator, possibly a Performer RPM Air-Gap intake, electric water pump, and I also have my eye on some nice heads
cammed it, some intricate head-work done, Performer intake, Performer 600 carb, custom 80-Series catback, hi-flow race cat, dual-snorkel intake, and some gold old Fashioned Headers. Oh ya.. and a new vacuum advance distributor.
If I want to bump that to 400+hp, I am going to get a dual-electrical high-output fan system, new lighter and hi-perf. radiator, possibly a Performer RPM Air-Gap intake, electric water pump, and I also have my eye on some nice heads
07-20-2005, 05:34 PM
#15
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Re: can a 305 be a fast engine?
Like I have said before there are 305 sprint cars that make 400 - 450 HP and last all season there all motor and quite reliabe. I mean I am one of the biggest fans of "Theres no replacement for Displacement" but any motor can be made powerful and "fast" it just depends on how good you are and how much you like to be different