how would you go about it

 

With a 327 crank and pistons. You're not destroking a 350, you're building a 327.

 

any good idea where to find these parts
and come to find out it has the tbi took out and a carb 305 with the 700r4
so im looking at a 327 to go in it cuz its my all time fav block by chevy and the rpm rang is just sexy

 

You buy them anywhere you buy engine parts, they're not rare. Just more expensive than the more common 350 parts.

Your all-time favorite block? That makes it easy then, you just leave it alone because your 350 uses the exact same all-time favorite block too.

And it being a 327 has absolutely nothing to do with the RPM range it runs in.

 

Maybe read this

https://www.thirdgen.org/forums/engi...t-fiction.html

http://www.hotrodders.com/forum/sbc-...-a-139509.html

 

Why do you want to spend extra money so you can lose races? How is this A Good Idea?

 

When GM introduced the longer stroke that made a 327 into a 350, many cars from that era got rid of the small 327 in favor of the larger 350. The 327 was popular in it's time because it was a bigger engine. Once the 350 came out, it became a lot more popular than a 327.

If you're building a period car that may have come with a 327 at the time then go ahead and build a 327. If it's for a more modern car like a third gen then you can build a 350 which will easily outperform the 327 for the same amount of money.

To build a 327 however, all you need is the crank and pistons since the rods are the same length. The early 327 cranks were cast and had small journals. The last couple of years the 327 was produced, they could have had forged cranks with the larger journals. Good luck finding either crank. With the abundance of aftermarket parts now available, you just order the crankshaft in whatever stroke you want.

 

really i just wanna have something different then anyone else i know alot of people with a built 350 and or 305 and the 327 is a nice engine and i feel its one of the things that made the camaro a legend in my eyes

 

When all the other cars had 283's, the 327 "was" a hot engine.

You can build whatever you want if you want to be different. Just prepare to be disappointed when 350's, 383's etc outperform you. There's an awful amount of third gens with V6 or 305's that drive around fine by owners who have never driven a car with a 350 in it. The extra cubic inches and torque can make a huge difference.

 

Well, you're not getting much help, are you...

I'll help.

A little.

Find an '87-'99 Gen I 350 SBC block. This will give you 1-piece rear main seal (very important given what follows), and likely roller lifter capability (some truck engines didn't have the roller lifter provisions machined from the factory, and trucks are the source of the majority of 350 builder blocks). Now, find a 4.3l V8 from a 1994-1996 B-body. Looks like an LT1, but has a 3" stroke (and smaller bore). All you want is the crank, so the rest is scrap. With 5.7" rods (probably from your 350), 327 pistons for whatever bore size you need to clean up the cylinder walls, you've now got a 327-ish SBC.

Of course, for a "sexy RPM range", you're going to need good heads and a great valve train. That would also be the case with a 350, 383, 400, 414, 427, or 454 SBC as well. But, hey, 327 is "different".

Now, when you open the hood, the first words out of the admiring public will not be, "Wow, a 327!" Why? Because they'll have no clue it's a 327. It could be a 262, a 265, a 283, a 305, a 307, a 327, a 350, a 383, a 400, a 414, a 427, or a 454 and they'd all look basically the same (the details of the differences are obscure, or more to the point, obscured).

You really want a "327" that's "different"? Get a 5.3 from a '01-up truck. Rebuild it with a hone to 3.800" on the cylinders. It'll be closer to the original 327 displacement (328) than a 0.030"-over 327 would be (331+). And, since it's an LS-series engine, it'll rev "to the moon" (in spite of its 3.622" stroke). Those long rods and great LS heads & valve train really let them wind. While I don't understand it, a lot of guys are putting carbs and Gen I SBC-valve-cover-looking coil covers on them to give them that "retro" look.

Probably cost you less than building a Gen I SBC 327, too.

 

A factory air cleaner with a 327 emblem on it would be a lot easier.

 

 

hahaha this one made me laugh

 

fella, if you wanna build a 327, then do it, Build whatever makes you happy, its your money and time. If you want to use both then do. I have a 306, a 327, that is now a 350 with a 671 blower on it, 2 355.

when guys build a small cubic inch engine there runnin a weight per cubic inch class in drag racing, no one said it cant be a street engine. Reguardless of what others think.

You can build that 327 to run like a striped ape if you wanna spend the money, or just build it to cruise with.

Comp cams has a camquest on there site to help with cam needs and aprox hp from there dyno on there as well. might help you decide if you reall wanna build it or not.

 

if you wanted a real 327 block, casting number 3914660 is a true 1968 large journal 327, this is the only year of the 327 large journal, incase you decide one day you wanna change it to a 350, then you just punch it 060 over and add 350 crank, rods are still 5.7 in length

 

And if you spend the money to make the 327 run good, just remember, you'd have got around 8% more power if ALL THE SAME PARTS were used with the 3.48" stroke.

Now I'll freely admit I'm not the brightest bulb on the string, as is well known around here; but even somebody that's a coupla bricks shy of a pallet like I am, can figure out that the kind of "different" that can be summed up by "spent the same money but got 8% less power" won't help boost my reputation any.

 

ty someone see what im trying to say and besides all people are running on the streets around is is "stock" hemis in the new chargers no even the changers and besides i dont know what im going to do yet so all you people wanna hate on my idea dont post here ty...

 

And he is another new member who has only been here 10 min

You asked a question and got all the same answers you didn't want to hear from different people.
You will continue to get the same answers as long as this thread runs.
Suggest you go to www.goodreasonsforbuildinga327.com
or similar where you may be happier with the answers

 

Why?
A 350 uses the same 4.00" bore as a 327 does

 

Actually, that'll yield a 302. And, aren't the crank snouts of LT1's/L99's different from a Gen 1 SBC? I'm probably wrong, though.

 

All 1 pce RMS cranks are the same ; be they Gen I or Gen II
The differences are in the various balancers / hubs used depending on accessory drive setup ( F-Body is different to Vette )
and whether a crank sensor wheel is installed (OBDII LT1's and Vortecs ) .The hub has to be shorter to accommodate the wheel

 

Yes, I stand corrected, the bore is the same.

 

This is not entirely true, due to earlier 327 are small journal and a 350 crank wont fit. So in this sense they are not the same block.

 

So since Ive only been here as you say 10 min, that makes my opinion any less than yours, not sure why that is. I understand him wanting a 327, is not an engine used every day or should I say its not one built every day, most use 350 400 block to build with. If he wants a 327 so what, answer how and let it go. its his money and build anyways.

 

WOW all the hate on 327. Contrary to popular belief, a true automotive enthusiast can spot the difference between a true 327 and 350 block as there are some differences on the outside. I've had older guys walk up to my car at shows "convinced" that I just dressed up a 305 until they lean in and are a little shocked when they realize right away it's not a "look-alike."

Seriously man, just go get a 327 and build it if that's what you want. I've got a little over $5,000 in mine and it not only looks good, but performs very nicely. In all in how you build it whether it's a 327, 350, 383, or whatever. It's your car. Just have fun with it. I got the same comments from people and when they rode in my car after it was done...they changed their tune.

Here is mine for an example:

 

Couldn't have said that better myself. I have the early 327 with the small journal forged steel crank and even the rods are a little shorter. We compared the rods to others in the shop and they are a little shorter. My block measures a little over 1/4" shorter from deck to oil pan than a 305 or 350. We verified this in the shop to our amazement. Custom done block? Maybe, since I've found no info about the differences (not online anyway). My dad had it built back in the 70s for racing and I totally redid it and brought it back to life.

 

very nice, whats this in?

 

It looks like a camaro, almost sorry I had to ask!

 

Close.lol '82 Trans Am

 

No, they're both built in the same block. There are no external differences. You can put either stroke into a large or small journal block if you really want to.

From the outside, you can't tell if a block is a 327/350/302/383.

 

There are some casting differences which is what I was referring to. All true 327 blocks have a casted curved web on the passenger side with a pipe plug just next to the water pump. The 283 also has this web, however the size of the web and the space between the web and the timing chain cover casting lip are different between the 327 and 283. NO 350 or 305 block has this web and pipe plug. You can see the curved web and plug in my 2nd photo I posted. Also, the early 327 and 283 had a road draft tube casting in the rear of the block as mine does next to the distributor (easy to spot). You won't find any other small block EXCEPT the 67 (one year only) Camaro 350 block with the road draft tube casting.

Now I would agree that it's tough and maybe impossible to tell a 305 from a 350 in all cases if you have two bare blocks sitting next to each other, but I can spot a real 327 every single time without running the casting numbers. So again, the blocks are NOT identical. There are subtle casting differences. Subtle or not, it's there.

 

You're right!

Got carried away with the "short stroke spins to the moon" stuff.

Now I have to go and delete all that.

3.25" stroke

3.25" stroke

3.25" stroke

(If I say it enough, maybe I'll remember it next time)


Okay, get a '68-'85 350 block (2-piece rear main seal), find a 307 and pull the crank out of it, put 327 pistons in the 350 block with the 307 crank (rebalanced, of course), and you'll get a 327.

Still like the 5.3 idea better, though...

Not that I've heard. Haven't compared them side-by-side, personally.

 

"Real" 327?

Are you saying these weren't "real"?

3914678....302.....68....2...Z-28 Camaro
3914678....327.....68....2
3914678....350.....68....2

3932386....302.....69....4...Z-28 Camaro
3932386....327.....69....2
3932386....350.....69....2 or 4

3932388....327.....69....2
3932388....350.....69....2 or 4

3956618....302.....69....4...Z-28 Camaro
3956618....327...68-69...2
3956618....350.....69....2 or 4

3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4

 

You can distinguish a block externally, but not the displacement. You could make a pretty high-probability guess what the original displacement of the block was 45 years ago, but you can't say for certain what it is now.

Oh, and my 3970010 has the front oil galley and pipe plug. It was originally a 350, cast in 1978 long after 327 production stopped.

 

Yea, that's what I was getting at. The external differences. I bet your 350 block doesn't have the curved fin though next to the stamp pad.

 

Yea, those are all fakes. The only real 327 is casting 3782870 in my eyes. I'm biased like that.lol The later blocks were all the same basically. Even the subtle casting differences were gone as well as the road draft tubes etc. So, yeah, those are not 327s to me.haha

 

WOW! Cant believe this is still going on, have we not decided that 62 ta 67 are the real 327, with the 68-69 bein both 327 and 350. All thats diff is the stroke on the crank. except the 62 ta 67, they are small journal, so 350 cranks wont fit!

 

Medium journal 350 cranks won't fit until you make them fit, which you can do if you're so inclined. Fortunately not so many people are these days.

Not so long ago there were even aftermarket 383 cranks sold with small journals.

 

have to say really nice and like i was saying ppl i have other things im looking into i have have a few 327s around 1964 and i have alost found a t-boned vette 1996 everything still runs in it that i can get for 600 was thinking about just taken motor trany and wires outta it can have some fun that way as well

 

The argument is (as it often is with newbies that come here with " bright" ideas that they got from their expert buddies )
is that there is no logical reason, either perf or $$$ wise for installing one

The OP started off asking how to destroke a 350 into a 327 and now he states he has access to original 327 engines
so his build problem is solved

 

yes it is i just found them as well as the vette a 1972 350 4 bolt main and a 400 small block lol but the vette idea sounds fun to me aswell and just cuz im new here dont make you any better then me i come here to ask for the help so if you dont like it and wanna make smartass comments then just stfu

 

I get what your saying, The fact remains that wasnt what he asked, he asked how to go about it, give him the info he asked for, as many on here have done, along with there opinions on the matter, then be done, I am as guilty as the next guy about given my opinions, there is no need to go over board on the matter of what is or isnt better faster, slower, those questions whwere never asked, just given, one person's choices are his own for whatever reasons, as yours are to you, mine to me.

if you ask me this is a great site to get tech info on, like I have never built a fuel injeceted engine, This site has made me think about it, Me I am oooold school, NA engine, to me that is the way to go, why I dont have to worry about computers, chips, in depth wiring, not to say I wont try it, Its this site that gives me the Idea due to the knowledge those that have done, have that helps a guy like me out.

Along with the cool builds others do. Its insperation to all car lovers!

 

And I repeat again;
many new owners come here with fanciful ideas about what they think they want and after LISTENING
to better informed advice from experienced people, they change their minds
You are obviously not one of those types ( refer below)

No ,
you came hear wanting confirmation of your 327 idea , then got the sh*ts when everybody tried talking you out of it with LOGIC

As stated by others ; your $$ , your build ; you do want you want .
Just be ready for the " we told you so" when you come back here crying because your buddie's 350 out runs your fav 327

 

like i said before i dont know what im going with yes and the 327 was just one of my ideas and i wanted to see how i would go about it if i go that route and like i said before the only thing that people run around here are the newer dodge chargers and my a friend of mine has a 355 in a 85 mustang but its still got the 4 cylinder rear end and honestly a pos if you ask me and i still got a long way to go with this car and as of right now its got a built 305 in it

 

The major point here needs to be that you can build a 450 cubic inch motor with between 400 and 600 horsepower and make it look like a 305 with the right dressing. Beauty is in the mind's eye- regardless of makeup.

 

Gotcha'. Good to know.

 

" I want to build something different then the 350 and 383's everyone else has"


These threads come up all the time. No logic or reasoning can fix them.


If you really want to be 'different' don't start your build with a camaro.

 

I agree 100%, I mean if you can think about it someone has done it many times over-maybe not right next door, but it's been done. I mean there is a new member on here that has about the same RS as me and is painting it the same color and even the same brand of paint. I say build what you like, but also use your head an take advice from people that are trying to help you get the best bang for your buck. I mean if you really want to be differant with an engine swap into a 3rd gen then get a Power Stroke 7.3 or something-they make big power and sound cool as hell. I agree that everyone has a 350 and saying I got a 327 sounds differant, but there is a reason so many run the 350.

 

Also, let this be a lesson should you choose to build a 327...it should look something like this:





Will my 327 beat a 350, 383, 454, or a 305? I have no idea, nor do I care since I didn't build a race car. If I wanted a race car, I wouldn't have put a 327 in it.

 

That is one clean/good looking engine sir.