Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

355 swap

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Old Jan 5, 2011 | 02:00 PM
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355 swap

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Size:  141.9 KBhey guys its been awhile since ive been on but i figured id throw on my latest updataes even though it was last winter lol. anyways last winter i decided that the little 305 i had wasnt enough so i droped in a 355, at the same time i took out the 700r4 and swapped it to a t5 5 speed
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thats my 300 dollar 355 in mid tear down
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masced off for paint
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Last edited by One_Nasty_Z; Jan 5, 2011 at 02:03 PM.
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Old Jan 5, 2011 | 02:44 PM
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Re: 355 swap

those are the 882 heads i installed lunati springs to hold upto the cam
then i painted her red and black and toped he off with a summit intake and edelbrock carb
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Old Jan 5, 2011 | 02:45 PM
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Re: 355 swap

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Old Jan 5, 2011 | 02:47 PM
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Re: 355 swap

http://s821.photobucket.com/albums/z...3-17-45-23.mp4
heres a video of the day we got it all runnin. she sounds mean for sure
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Old Jan 6, 2011 | 03:58 PM
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Re: 355 swap

any input? lol
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Old Jan 6, 2011 | 04:08 PM
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From: Ottawa,KS
Car: 84 Z28
Engine: Mildy Built 350
Transmission: World Class 5 speed
Axle/Gears: 3 73
Re: 355 swap

Sounds good! nice budget build
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Old Jan 6, 2011 | 04:17 PM
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Re: 355 swap

thanks. when it was all said and done i had about 1500 in the motor and tranny
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Old Jan 6, 2011 | 04:37 PM
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From: Ottawa,KS
Car: 84 Z28
Engine: Mildy Built 350
Transmission: World Class 5 speed
Axle/Gears: 3 73
Re: 355 swap

Originally Posted by One_Nasty_Z
thanks. when it was all said and done i had about 1500 in the motor and tranny
What are you running for gears
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Old Jan 6, 2011 | 04:44 PM
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Re: 355 swap

sadly the stock 273s at the moment but the next step for the car is a better rearend with posi and higher gears
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Old Jan 6, 2011 | 04:47 PM
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From: Ottawa,KS
Car: 84 Z28
Engine: Mildy Built 350
Transmission: World Class 5 speed
Axle/Gears: 3 73
Re: 355 swap

Originally Posted by One_Nasty_Z
sadly the stock 273s at the moment but the next step for the car is a better rearend with posi and higher gears
yeah im pretty happy with my 3 73s but my tranny is alittle lower geared so my topend isnt what i would like im going to a 3 42 probably
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Old Jan 6, 2011 | 04:56 PM
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Re: 355 swap

the car i pulled the tranny from had 342s but the rear end wasnt posi i didnt wastre my time on it. i need to up to a tko though so i gotta drop 2200 on a tko 600 lol
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Old Jan 7, 2011 | 09:57 PM
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Car: 92 camaro RS
Engine: Vortec 355,262/268 cam,670holley
Transmission: 5speed
Re: 355 swap

what size cam did you use? i just bought a 350 out of a 95 and im rebuilding it for my 92 rs but im unsure of what heads and cam i should use. any suggestions?
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Old Jan 7, 2011 | 11:03 PM
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Re: 355 swap

well depends the two corispond to eachother. you want to make sure ur heads can handle the lift of the cam and do so efficiently otherwise its kinda just usless. i am runing a lunati voodoo .489 lift intake and .504 lift exhaust. its a great runnin cam with a power band of 1800-6500 and i love it! now i aimed for a lower begining to my power band due to my manual trans. if you have an auto a good place to have ur cam kick in is just befor ur stall. for instance if ur runnin a 2500 stall run a cam tha kicks in at 2200. now im pretty much peaked my heads out and am plannin on new ones after chassis and suspension mods and prolly a tko lol. but the best way to choose is 1. cost 2. power goals and 3. compatability. when i step up to aluminum heads im going to run 1.6 rockers to gain some more lift and a little power while not increasing the duration to drastically. lower duration= lower starting power band. the best lift to duration combos are hydrolic roller lifters but you better be ready to shell out some cash. my cam only cost me 110 bucsk then the double roller timing chain,heavy duty springs and lifters and pushrods are about 40 to 50 bucks a peice. i went complete lunati with my valve train and am extremly impressed with it. it sounds great and runs even better! good luck with ur build and if ya need someone to bounce ideas off from im always willin to help
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Old Jan 7, 2011 | 11:36 PM
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From: AK
Car: 92 camaro RS
Engine: Vortec 355,262/268 cam,670holley
Transmission: 5speed
Re: 355 swap

Where did u get ur heads from? I'm debatingif I should use a set of ported and polished 305 heads. But I heard that mainly increases tq and I wanna increase hp as well.
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Old Jan 8, 2011 | 06:46 AM
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Re: 355 swap

mine actuallly came with my motor. i got really lucky and got a 355 with 20k miles and the heads had less then 10k for 300. id look for some 2.02 1.6 camle humps or something in that area. unless you can aford aluminum
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Old Jan 8, 2011 | 07:04 PM
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From: AK
Car: 92 camaro RS
Engine: Vortec 355,262/268 cam,670holley
Transmission: 5speed
Re: 355 swap

So I found out today after tearing down my block that I have l98 heads. Will these work pretty good? I am trying to figure out what all I need to swap bc I wanna do the 355 with tbi. I know I have to change knock sensor and esm will 350 injectors work and I am trying to find a chip out of a old caprice. Thanks for the help.
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Old Jan 8, 2011 | 07:30 PM
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Re: 355 swap

well a master on the tpi i am not, but that said i do know the stock l98s put down some fairly impresive numbers and that you can fit the tpis with lt1 or ls1 injectiors. if it s a tpi ur better off sticking to tpi if its tbi. well my opinion is to swap one way or the other cause tbi isnt the greatest for power but people do put good numbers down thats just my 2 cents. and yes i do know that lsi 1s and tpis both have throttle bodies im talking about the intermediate carbstyle v8s not those style just for clarity lol

Last edited by One_Nasty_Z; Jan 8, 2011 at 07:35 PM.
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Old Jan 8, 2011 | 09:39 PM
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From: AK
Car: 92 camaro RS
Engine: Vortec 355,262/268 cam,670holley
Transmission: 5speed
Re: 355 swap

im stuck where im at for the next 2.5years and i just drive the car mostly on the weekends and i dont access to mant tools now so im trying to decide on whether to stick with the tbi, or jus swap it out for a carb. id like to keep the tbi bc there isnt many 355 tbis.
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Old Jan 9, 2011 | 12:47 AM
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Re: 355 swap

but theres a reson for that. the tbis are very consttrictive and really expensive and hard to find the parts to ubgrade. u could put out decent power with it but as far as building huge power that you wont without serious money. you could make a pretty solid 300-350 without a huge hassle
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Old Jan 9, 2011 | 02:25 AM
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From: AK
Car: 92 camaro RS
Engine: Vortec 355,262/268 cam,670holley
Transmission: 5speed
Re: 355 swap

So what do you think I should use just go with a carb?
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Old Jan 9, 2011 | 10:54 AM
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Re: 355 swap

well that ur desision to make. i understand wanting to be diff then others thats what i base y entire car on. if ur just building a mild 355 keep it for now you can always carb it later when u go for big power. just run a good spacer and air intake. its not that tbi is bad hell my sonoma is tbi its just that performance parts are few and far between and usually break the bank getting them
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