Dragonsking

My questions here are basically what i have labeled this topic as. I am wondering the cheapest way to go about building a 383 stroker motor. I am looking at replacing the 305 that is in my 91 camaro rs, but i want more power out of that engine space and the 305 doesnt cut it right now. I know that i can just take a 350 sb block and replace the crank, pistons and cam, but dont i also need to change the headers? what about the tranny, will the stock 700r4 hold up to the 383? I know the rear end will slip often and traction will become an issue that i will fix later on. The question here is will the 383 work in the camaro rs with little to no mods? i am currently running with a tb on the 305 and i am almost done bypassing the VATS "ok" signal (30hz) to the ecm to enable the fuel injectors and i am working on bypassing the starter to remove the VATS from the equation completely. so back to the topic.

What is the cheapest way to build a 383 stroker?

Will it work in a mostly stock, 91 camaro RS with little to now mods needed?

If mods are needed, what types and cost estimates?

And anything else i missed. I really want a 383 stroker motor in this car, but i may have to settle for a 350, i have about $2k to invest in this process.. Is it even possible?

Dragonsking

my VATS bypassing project can be seen here, to see if there is anything more that may need to be done to make this 383 stroker or 350 work.

https://www.thirdgen.org/forums/elec...ml#post4769341

vetteoz

iTrader: (13)

Just answered your own question.No other way
How much it costs depend on how you go about it ( parts you buy )

Only cost difference if doing a full rebuild is the cost of the stroker crank ( $170) and some labor to clearance the bottom of block for crank .
If you have to get the old 350 crank ground, the cost difference is even less
Have to buy new pistons / bearings / gaskets/ etc either way

DeltaElite121

Building power is the easy part. Building the car to be able to handle the power is the expensive part. My advice to you with your budget is to be REALISTIC. I know on my setup I came out to about $1,800 on a nearly stock 383 build done correctly with good internals and all the machinework done. Can it be done cheaper? Yeah, most likely.. but you're going to hate yourself later for it because you're only cheating yourself.

If you want a CHEAP build, I suggest you build a 355 or 406. It will drop in without any problems, and you can keep the rest of your internals (minus the pistons) and have plenty to go towards modifications.

Like mentioned before, you can go with a cheap stroker kit but like anything - you get what you pay for. I was in your spot not long ago and I actually went with a 355 because I got a sick deal on it already built with only 2500 miles, but I would've gone with a 400 had I not gone that route.

- another thing to consider that will weigh your options is this: what exactly do you have in your possession for the build right now? I'm assuming just your old 305 and you haven't bought anything yet, or?

five7kid

iTrader: (14)

383's are so common these days it doesn't make much sense to build one yourself. You'll pay a premium for getting custom work done, and not get any value for it.

Assembly line outfits will get one for you with all of their efficiencies built in. Check out these guys, for instance: http://www.rebuilt-auto-engines.com/...22111123734.82 Assume you need to add the core charge and $195 shipping, and it's still a great deal.

zraffz

You can put a 383 together to handle about 400-450 horses for probably $1500-$1600. That would be a short block. It's probably possible to build it for around $1200 everything off a 400 and 350 except for new pistons, rings, and bearings.

DeltaElite121

Not to mention a killer warranty.

DAVECS1

iTrader: (2)

I just pieced this together for a buddy of mine. He was pretty happy with the price. Just wanted a mild street motor.

LS4GXP

iTrader: (2)

Trans and rear will work with the 383, but question is will they last. Answer is.....no. I blew 3 trans and 2 rears with a modified 305.

The cost difference between a 350 and a 383 might be around 2-300$. Save up for an extra month or two and just do it right the first time.

Personal expierence, I held my project off for almost a year, just for the satifaction of knowing i did it right the first time

Dragonsking

ok, so then heres a thought, and some honest opinions are needed. I NEED to do something with this 305. I've got gas going in the oil, and coolant going out the exhaust. I have lost a lot of HP and somethign needs to be done. If i want to go for a good option, with future upgrades for more HP and other things, should I just buy a re. manned 350? i can get one with everything for around $1800, maybe less.. The question here is that I need to do something, I want more HP, but i want everything reliable until I buy this 9" rear end. So what would YOU do?

LS4GXP

iTrader: (2)

One of my friends bought Gm's remanufactured 350 for $1900 and it runs good. You could do that as a base starting point untill you can afford aftermarket parts. Throw a set of vortec heads on it and it should run alot stronger then your 305 when it was healthy

Dragonsking

ok, so say, i drop a 350 in. What complications would I, or could I run into? I know that i can take most of the parts off of my 305 to use on my 350, but what problems might arise? What about the throttle body? is that useable or not? i will have bypassed the VATS, COMPLETELY, by this point, but are there any electrical problems I might face> Anything with the ECM? just trying to collect all the info before I start this project, I dont want my car to be down forever, its spent too much already with this stupid VATS.

DAVECS1

iTrader: (2)

The ECm has no clue what the Displacement of the engine that is put in your car. It will need to be tuned so it will work with new displacement. TPI will need bigger injectors. TBI will need the displacement fixed in the ECM.