rockfourone

FINALLY!!!!!!!!!!!

i finished my 305-350 swap in my 85 iroc!!!!

for those of you that dont know, i fell in love with thridgens about 3yrs ago and last september i bought an 85 iroc with a 305 that blew smoke and a 700R4. then the restoration began......

now 8 months and $5000 later im done!!!!!

OLD- stock 305, TPI, 700R4

NOW- 355 TPI
11:1 compression
.172 exh, .202 int
forged rods, crank, pistons
BAD CAM- .472 int, .481 exh
titanium valve springs
dynomax shorty headers
of course it has all the chrome and shiny goodies (valve covers, pullys, polised TPI setup)

WC T-5 tranny
Competition clutch setup
3.42 posi

i just fired it up and drove it for the first time today. all i can say is.............t-t-t....TORQUE MONSTER!!!!
i couldnt have done it without you guys and the wisdom of the TGO message boards. you have my eternal thanks:hail:

ill get some pics asap!!!! let me know what you think

P.S.- sorry for the long post, but im really excited!!! my neck is still sore from being pressed into the headrest

87daddyformula

It must be nice to have your plans and dreams come to life so potently. I can't wait until it's my turn. Good for you man, congrats!:lala:

Riley's35089rs+

another satisfied TGO member!!! Good for you!

AJ_92RS

Glad to hear it.

Someday I'll be where you are (305 out/350 in) and I can't wait.

The best part is when someone asks
"Who did the engine?" you get to say "ME!"

"Who did the exhaust?" ----- "ME!"

And on, and on.

I do have a question though about your engine specs.

NOW- 355 TPI
11:1 compression
.172 exh, .202 int
forged rods, crank, pistons
BAD CAM- .472 int, .481 exh
titanium valve springs
dynomax shorty headers
of course it has all the chrome and shiny goodies (valve covers, pullys, polised TPI setup)

.172 exh, .202 int ----- Is that the valve size?

And "BAD CAM"..... is that a manufacture?

Just remember to keep the tickets in the cop's pocket, not yours.

rockfourone

yeah i know its great to have it going. in response to your question, yes that is my valve size. also i said BAD CAM because im not sure who makes it. lol bought it at auto zone for 29.99. i was hesitant but the guy looked up the specs and it had a 100,000 mile warrenty so i was like what the hell.....why not

TransAm12sec

Congrats on the swap. Can't wait to see the pics!

chev69

Man I know what your talking about one of mu buds has an iroc ad its the same way it wicked fast. And i know what you mean about the touque and your neck huting.

rockfourone

ok now that my initial euporia has worn off (and i can finally keep my pants dry when i hear it run ) lets see if i cant get you guys some pics. heres the engine bay. looks a little dark but then again its like 12:00 at night when i took it.

Riley's35089rs+

Nice...

rockfourone

hmm that pic didnt seem to load. let me try again

Riley's35089rs+

one more time!..check out the FAQ section on the home page for help...LOL

rockfourone

hmm i cant get it to load. you guys need to see this, i put in more than a few hours of detailing into this engine. (except i still need to repolish my tpi plenum ) lets try this one more time....[IMG]{IMG}C:\Digital Pictures\Digital Photos 03\Cars\85 Camaro\Engine Compartment 2.JPG{IMG}[/IMG]

rockfourone

well that didnt work, lets try this......
[IMG]C:\Digital Pictures\Digital Photos 03\Cars\85 Camaro\Engine Compartment 2.JPG[/IMG]

rockfourone

well damn. i guess im a lot better at building engines than i am at working on computers. what am i doing wrong?

Soulless

You cant load images from you harddrive!! LOL

Try loading the images to this site and then linking them to here

www.imagestation.com


and i think your valves should be 2.02 and 1.72

Midnight Sun

It seems a lot of you are getting rid of your 305's. Not that I have a problem with this, I plan on getting rid of mine for a 350 as well.

I am just curious, where do all of these 305's go?

Riley's35089rs+

yes you can ..after hitting reply ..click on browse...then find your pic in your files..you may have to reduce it in size....like this..

Riley's35089rs+

or this....

Riley's35089rs+

305 Hell!

Midnight Sun

No seriously.

You just sell them to a junkyard for a few bucks?

My friend took a 305 out of his Chevy K5 (underpowered, dont ask) and sold it to a guy who was hot rodding a boat.

rockfourone

ok ill try that next. right now im going to the exhaust shop to get some flowmaster sound

btw- my 305 went to the floor of my garage, where i constantly trip over it every time i go to my car. anyone who wants it, come and take it

bradkeith

LOL, i thought everyone else used 305's as boat-anchors also. Problem is, i don't like pulling them back up, so i just cut the rope!!!

Momar

Hey, I just swaped my 305 out for a 350 also. It is pretty nice. I can also say I built my motor, my exhuast, swapped in the rear upgraded the breaks and the list goes on. Mine was done because my 305 took a crap. Looking back on it I didnt see any physical damage. I think that the timing chain may have jumped a tooth or something, but it was for the better. Unfortunately I also am in the process of swapping in an electric speedo so I cant drive it until I get it working so the computer will lock up. I am hoping this weekend. I have however taken it out for short trips and can tell you that the 305 wouldent burn through first and into second like this.

What kind of heads did you use? Do you know the casting number? Also on the cam do you have the duration numbers?

Ben

ajm_shorty

Ill take your 305 where do you live? is it in good condition? Email me at ajm_shorty@hotmail.com

Z28Clone

305's should be kept for installing in s-10's.

Momar

If I was going to do a v8 swap into an s10 it would be at least a 350. I just think that the 305's should go to the scap metal yards.

Ben

Riley's35089rs+

ROTFLMAO.. :hail:

rockfourone

What kind of heads did you use? Do you know the casting number? Also on the cam do you have the duration numbers?


actually theyre 305 heads that have been extensively worked and ported. reason being:
305 heads with a little work can flow just as good as nice 350 heads, and they have much smaller chambers.

smaller chambers=higher compression

higher compression=more ponies at the wheels

but guess what i just found out about the "good deal" on my 29.99 cam.....i called the company that made it just to be sure what i had and heres what i found out......

LIFT
int-.390
exh-.410



i knew it was too good to be true!!!!

now i get to have fun changing a cam while its in the car.

the thing that makes me happy is even with a basically stock cam my car still feels like an alcohol dragster!!!

ok now that ive accepted reality and have to change a cam, what do you guys reccomend? ive heard good things about zz3s and zz4s. what about lunatis? suggestions?

Momar

Hey, I have 305 heads also. They have also been fully ported. You dont happen to know what the compression would be with stock pistons and the small chambers do you? I found a stock replacement piston on a site that had the same valve reliefs as the ones I have and was used during the same years and it said that I should have about 10.6 to one compression, but I wasnt sure how accurate that is. I have the xe268 cam and like it, but I have not been full throttle past second gear and havent taken it past 5000 rpm yet. This cam is supposed to peak around 5800, and is about 100 bucks from summit I believe. I would have taken it up to 6000 in first, but my shifter cable is messed up and I cant put it in anything manually lower than second gear. I really do like having the 350 after running the 305. lol

Ben

89formula#1

ok best story about where my 305 went. ok so i am washing my car and two guys come up and start trash pickin out of my trash and my dad walks up and hes liek YOOOOO, I wa sliek oh **** heres a fight, and hes says u wunt and engine. the guys were liek um wut, hes liek i have a 305 u wunt it?? they wre liek um yea sure, pulled in my backyard rilled it into there truck and they were off. lol man that was the funniest thing lol

87WS6

iTrader: (1)

You should sell the 305's to Honda owners.

Like they would know that it doesn't work in thier cars.

Timz2882

iTrader: (1)

hey one of my custom dream cars is a stock 96 civic with a either a 427 sbc or a 502 bbc with a th400 tranny and 9in rear end. of chorse the civic will be tubbed out with big meat in the back and it will be the civic with the trunk so u can hide the battery, full cell, and the big tubs

maybe a 305 in a civic or a milddly modded 305 in a civic will still give it a nice get up and go.

AJ_92RS

Someone beat you to it....

It's called a CHEVETTE!!!!! :sillylol:

About 3 hrs with a sawzall and it'll fit NO PROBLEM!!!

Timz2882

iTrader: (1)

LOL thanx but i know about the chevettes. one guy around here built his chevette around the bbc he has in it. the thing hangs the front wheels nicely. he did it once leaving the car show, i almost creamed myself.

but also how many civics do u see runing around with sbc of bbc in them and look stock excupt the big *** slicks in the rear and the nice sounding of open headers

rockfourone

actually somebody beat both of you to it. his name was carol shelby and his "big engine, little body" idea was the Cobra. too bad he went with ford instead of chevy. oh well. its still an awesome car. 500+hp on a 1500lb body. i imagine that would embarass my 350 any day. lol


that still would be funny though, a 502 in a civic. people would hear the noise and be looking around for the chevelle.

not to mention it would carry the front wheels past the finish line.

Timz2882

iTrader: (1)

thats what i want to do and really suprise people. expecitally at the import races. everyone would see it being trailered in and then when u go to race u hear the nice rumble of a bbc

SinthetikIroc

iTrader: (1)

i think it'd be easier in an accord

TonyC

iTrader: (1)

A lot of guys use 305's for boat motors, there's a class where the limit on engine size is like 306ci or something around there. They usually end up blowing up the engines, so a 305 is a cheap solution to their problem.

1987-396-IROC

Congrats man! now all u need to do is switch that TPI out for a Stealth ram and ull REALLY be happy

f-crazy

iTrader: (-1)

"hey billy bob you got the anchor?"...."yea we just gotta stop at the junkyard"...


I know of a guy who put a 305 in a datsun 200zx or W/e its called...except it had a head/cam package with a big turbo on it..that sumb!tch ran ALL OVER modded Z06's, 03 cobras you name it....this car was SICKKK...
another guy put a H/C LT1 in the same car, with a 306 cam and a turbo...from a roll in 3rd gear it would blow the tires off it to 80 mph......

speakin a chevettes, yall remember that issie of hotrod a while back were the guy put a 500cube caddy motor in it ran low 11's with 2000 bucks spent including the car and motor/tranny

PhilM

there are a few dirt tracks around here that have started a 305 sprint class. supposedly it is a sort of stepping stone before the 358 cars. i think it's more like dirt burners have a lot of $$ to waste, and they get bored easily...
Anyway, I know a few people who ditched their old 305's to this cause.

Rembrandt

Excuse me, don't you mean retainers?

There are VERY few places that make titanium valve springs, and they are fittingly expensive so I really doubt you have a set.

Also your valve head diameters are off by a decimal place.

JDF-Z28

Or Pontiac Fieros

TransAm12sec

So, do you have the pics yet?

SLOWFIVEOH

iTrader: (2)

My 305 is covered with a trash bag for the last year...Free to takers!!!

Edaw

I've had a 1987 camaro for a little under a year now, and up until recently I haven't been really that much into cars.. but lately for some reason I've been reading like hell trying to satisfy my fetish for learning about engines. I'm saving up for a 305 to 350 swap right now. I know I'll need new headers cause they don't fit right? Any other tips? (Oh yeah, is the 1987 model a Berlinetta or what? I've been trying to figure that out for the longest..)

SLOWFIVEOH

iTrader: (2)

Hey Man, I know this is your first post, But do a little research, All the info your asking for can be found very easy with a little time and the Search funchtion. Bringing back a post from 2 years ago...Not the best idea

//<86TA>\\

iTrader: (14)

how does the 11:1 comp do on pump gas?

blakepeeps

Hi there!!! I had a technical question for you if you could help me out. I am doing a similar swap as you have completed. I have a 1991 Camaro that had a 305 TBI engine with the WC T-5 transmission. The question I have is in regards to the clutch fork necessary to perform the swap. I purchased a LT1 flywheel and SPEC stage 1 clutch for the T-5 LT1 set-up. The problem at the moment is that the stock clutch fork I have is not wide enough to go on the throwout bearing and the one they gave me from the dealer is not long enough. Which clutch and clutch fork set-up did you use in your swap? Thanks!!!

ezysk

I was wondering the same thing?