Has anyone built a 383 stroker motor from a Chevy 350 and swapped it into their fiero?
Could I chat with you about it? I have some questions, concerns and things I would like clarified.

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Yeah though I walk through the valley of the shadow of rice, I will fear no Turbo, for Torque thou art with me!
383 stroker swap mated with G6 tranny. Twin Turbo's!

I have built a 383 stroker from a Chevy 350 4 bolt main, but it didn't go into a Fiero.

Ninjabruce has one. It is for sale if you don't want all the headaches of a build.

https://www.fiero.nl/forum/Forum4/HTML/053810.html

[This message has been edited by johnyrottin (edited 01-12-2011).]

i did it when i was younger with help. i remember most of it. just not all of it. It was a real rat rod. Sadly the car was totaled almost 12 years ago.

I am by no means a master engine builder like some of the other folks on here though. so... depends on the question.

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"And remember: amateurs built the ark ....
professionals built the Titanic."

quote Originally posted by craigsfiero2007: I have built a 383 stroker from a Chevy 350 4 bolt main, but it didn't go into a Fiero.

Same here. Mine went into a heavier car which benefited nicely from the noticeable increase in off-the-line torque afforded by the 383.

However, I'd think that same noticeable increase in off-the-line torque afforded by a 383 stroker could be more difficult to successfully hook up to the pavement in a lighter car like a Fiero.

I am gathering the parts now to build an LT1 383 stroker for my Caprice. What's on your mind?

I have one, My best friend built and installed it in my 86 GT while i am deployed.

Jake

I prefer to just build a 406... build one for my 86 Vette back in the day and eventualy put it in my 69 camaro when I sold the vette.

Several people have put a 383 stroker in a Fiero...

From personal experience.. the drive train for "The Dirty Rat" was a 383.. and it was OMGORGASMIC AWESOME when Chester took me for a ride once.

I've built dozens of 383s, from mild to wild, depending on what the customers wanted. But none ever stuck one in a Fiero, so far as I know.
And with a Fiero, there's no real need. Especially with a manual trans.
And for less money than a 450 horse 383, you can do an LS4 and get it to 450 HP.

I'm a novice here in this section but...wouldn't you have to worry about the transmission just blowing up on a heavy launch?

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"Grammar is important. Capitalization is the difference between helping your Uncle Jack off a horse & helping your uncle %@&$ off a horse."

quote Originally posted by Cliff Pennock: Reading this thread made me drool and forget my name.

Without a taller geared transaxle, I don't think a 383 would be noticeably different from a worked over 350.
(Even a 4.9L (300 ci) already has neck-snapping torque in a Fiero). With the manual transaxles that are available,
I think a high-revving 350 (or 355) would be a much better fit. Probably a 327 would be even better (shorter stroke,
higher revving).

They do exist and mine may be able to run some day.

Nelson

Nelson could already be breaking parts if he hadn't spent so much on the EFI.

quote Originally posted by hnthomps: They do exist and mine may be able to run some day. Nelson

Was that the heart of The Rat??

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1986 SE 350 V8

quote Originally posted by tesmith66: Was that the heart of The Rat??

Yes, yes it was... The rat is going to get a 3800SC once Nelson's swap is done.

I had a 383 in Raptor..........86 Fiero GT. Tranny lasted a week. Swapped it out for a ZZ4 350 Camaro...transmissions lasted a few months then

Tina, in Chicago I think, was one of the first I know of. Dont even know if she is still on here.

[This message has been edited by rogergarrison (edited 01-13-2011).]

Yeah I'm going to mate it to a Pontiac G6 (6-speed for those unfamiliar) with a stage 3 clutch. I'm interested in hearing what else there is for transmissions that will fit a fiero and the 383. I'll be starting out with a 79' Chevy 350 and from there I will be building it up to a 383. Suggestions?

quote Originally posted by 86_Fiero: Yeah I'm going to mate it to a Pontiac G6 (6-speed for those unfamiliar) with a stage 3 clutch. I'm interested in hearing what else there is for transmissions that will fit a fiero and the 383. I'll be starting out with a 79' Chevy 350 and from there I will be building it up to a 383. Suggestions?

Does your 79 Chevy 350 have 4 bolt mains? If it came out of a truck or a Corvette it should have them. You could use the 5 speed getrag or the 4T65EHD that was used in the GTP's if you want to go the auto route.

For less total investment than a Vortec-headed 383, you could have an AFR-headed 350, and have more power, in a Fiero-friendly RPM range.

For the record, mine had a super beefed TH125. I think Tina had a 5 spd and she broke one a year.

Hmmm.... What could that be? - Mated to a 4 speed Muncie. The 4 speed seemed to hold up well with the previous 350! We will see.

OLD heads! Much shame on you. Hang your head. Then, at least do stock Vortecs with a dual-pattern hydraulic roller cam, with NO more than 0.480" intake lift at the valve. Done that way, with the right cam specs, you can reasonably expect 400 HP at 5600 rpm. What I see there will never see 400 HP, no matter who ported the heads, nor how big of a solid roller cam you get. And my combo will still pass a tailpipe sniffer.

[This message has been edited by Isolde (edited 01-14-2011).]

quote Originally posted by Isolde: OLD heads! Much shame on you. Hang your head. Then, at least do stock Vortecs with a dual-pattern hydraulic roller cam, with NO more than 0.480" intake lift at the valve. Done that way, with the right cam specs, you can reasonably expect 400 HP at 5600 rpm. What I see there will never see 400 HP, no matter who ported the heads, nor how big of a solid roller cam you get. And my combo will still pass a tailpipe sniffer.

I was just messing with the OP. There are a lot of folks that have done the SBC in a Fiero - it's not a big mystery. Only diferences is how the motor is built - it's all related to dollars! It's not a 383! Plain Jane stock 1970 350/4 bolt motor. 2.02 heads with some work. This was a stock 300hp motor. With the cam, intake and head work, I'm hoping for an honest 350hp at the crank. About all I want to push through the 4 speed - I'm not into grenading parts and I want it to be reliable. This will be the first in a series of SBC builds for this car. I have a complete 383 with Dart heads/Eagle rotating assembly and all the goodies. I am afraid to put it in the Fiero due to drive train questions. I'll build it with this setup and "see" if I like it. I can be driving it and having some fun while I work on a F40/383 setup for later down the road. You never know what I'll do next - maybe put the F40/383 in an 86 Chop Top or find a nice 88 GT - I have yet to own a GT!

i was going to install a zz430 that is now a 383 instead of the 350. zz430's were 350's originally. i did not build this engine for a fiero application. just happened to have it on the shelf and thought would be a fun toy in my mera. now have since gone to a ls3. as far as manual trans choices... the f23 287 getrag out of a 2010 cobalt fy1 rpo code is a good choice and is strong enough to take the abuse. the zz430 would have destroyed a stock 282 getrag, isuzu or 4 speed muncie. my .02

I have a 383 and the only problems I have had so far are with my Centerforce clutch. It slips when power shifting......axles and tranny have lasted 10k+ miles under V-8 power.....tranny has been cryo treated though.....I might be trying a SPEC clutch in the future.

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1986 SE 383 SBC w/ 5spd
aka "Homewrecker"

Yes, they exist.

I met two guys at our local summer funfest (Street Wheelers Street Machine Weekend) in July 2010.

Two guys named Brian.
The older Brian, has a Red GT with a 383 stroker, and 5 speed Getrag. He says it's a 11.50 second car.

The younger Brian (which someone else I know said they were Father/Son, had a Black GT with a 283 / Auto (used to be a 327 but he blew it up)

Both cars look strong,

The older Brian says he lurks here on PFF, but have never seen him post yet.

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Marko.

'85 SE 2M6 Muncie 4 speed.
a.k.a "The Rumble Seat"

i think username Claytonto has a 383/g6 six speed in his nice fiero

quote Originally posted by ninjabruce: I have a 383 and the only problems I have had so far are with my Centerforce clutch. It slips when power shifting......axles and tranny have lasted 10k+ miles under V-8 power.....tranny has been cryo treated though.....I might be trying a SPEC clutch in the future.

i have a beefed up getrag 282 with quad4 hd carrier and spiders, ep lsd, cryo all components including case and axles... and i wasnt sure it would hold to the zz430... zz430 is rated at 430hp stock... and mine isnt stock... not saying it couldnt hold it but wasnt sure.

Well so far I hear alot saying yay to the G6 so I think I am on the right track there. The only real issue I hear is the clutch. I'm looking at getting a stage 3 clutch. Here's the link from Ebay.
http://cgi.ebay.ca/ws/eBayI...geName=STRK:MEWAX:IT

quote Originally posted by 86_Fiero: Well so far I hear alot saying yay to the G6 so I think I am on the right track there. The only real issue I hear is the clutch. I'm looking at getting a stage 3 clutch. Here's the link from Ebay. http://cgi.ebay.ca/ws/eBayI...geName=STRK:MEWAX:IT

That is probably a 10.4 or 11" clutch... that will not fit inside the F40 bellhousing and the clutch disk does not have the proper spline.

i build kevlar clutches and high performance pressure plates for the fiero applications, mine are a bit more expensive than spec or clutchnet but my kevlar and components are made here in the USA. my .02

quote Originally posted by ghost187x: i think username Claytonto has a 383/g6 six speed in his nice fiero

Yes, also, he had everything cryo treated as far as I know.... and he does have a bottle hooked up.

Its a nice widebody.

oooo a Nanaimo guy you dont see that very often here on the fourm.
I have a 350 4 bolt main block sitting in the garage. im tempted to take it in the machine shop and get it bored out. cleaned. and decked for a 383 and tempted to put it in my GT. im still debating if i want to or not.

where abouts in nanaimo are you? i wouldnt mind checking out your work and or fiero.

I'm around the Northfield exit but my car is at a friends place right now. I don't have room at my current rental. Some bylaw official came by cause a neighbor complained about too many vehicles at our residence. slimy bastard. I'd love to exact some sweet revenge.
Maybe we can roll in the only 383 Fiero's in Nanaimo?
If you truly are interested I wouldn't mind doing a build side by side. 2 heads are better than one. Wouldn't mind the extra help either.
Need a job first to raise the funds to get this build on the go though.

i dont believe there are any 350 powered fieros in nanaimo. i think there are some in victoria. but there are only a handful of fieros in nanaimo. i saw an add on used nanaimo for a white fiero for sale for $500 with a blowed 4cly engine. i was wondering if that was yours or if you bought it off the person who was selling it.
just going by your avatar you have.
i have a white 85GT. you might have seen it driving around. it needs work but its a working progress.
i live at the north end of nanaim. by doverbay secondary school.

i have only ever seen one fiero drive around town and thats a burgandy fastback and i saw a black fastback parked on the side of the road. and a red notchy parked in a driveway. thats about it that i ever seen in nanaimo. other then my car. i see a red ferrari drive around town more often then a fiero.

i wouldnt mind giving you a hand on your build i wont be able to do mine any time soon. im just refeshing up the suspension and interior 1st before i start doing some big changes. maybe in the next year or so. but im still looking for engines to hopefully i might come across a hot deal that cant be passed up.

were you planning on buying archies kit for your swap or doing everything your self?
only thing that is holding me back is that darn adaptor plate. if it wasnt so darn expensive i might have already have a 350 in my fiero. so let me know what you are planning to use as an adapter plate.

quote Originally posted by rogergarrison: Tina, in Chicago I think, was one of the first I know of. Dont even know if she is still on here.

Tina, in Minnesota, has/had one and it was fast. If she still has it, she probably won't have it for much longer... long story there that isn't mine to tell. She pops up on PFF once in a while and the car does still exist. She started out with Isuzu 5 speeds and she broke them constantly, with spares on a shelf that could be swapped in when needed... she then switched to a cryo-treated Getrag and hasn't busted it yet. From the Dells Run 2010, a trio of nice cars:


Clay's car was the first to get a Archie fast back hatch as well... very nice car.

[This message has been edited by carbon (edited 01-18-2011).]

quote Originally posted by Isolde: OLD heads! Much shame on you. Hang your head. Then, at least do stock Vortecs with a dual-pattern hydraulic roller cam, with NO more than 0.480" intake lift at the valve. Done that way, with the right cam specs, you can reasonably expect 400 HP at 5600 rpm. What I see there will never see 400 HP, no matter who ported the heads, nor how big of a solid roller cam you get. And my combo will still pass a tailpipe sniffer.

I got to disagree


Displacement: 383 cu. in.
Carburetor: Holley 750 double pumper
Heads: GM #441 castings, 76cc chambers, 2.02/1.60 in. valves, pocket ported
Intake: Edelbrock Victor Jr.
Camshaft: Comp Cams 280° Magnum hydraulic, with 280/280° of duration, 230/230° of duration @ 0.050 in. lift,and 0.480/0.480 in. lift
Rockers: 1.5:1
Headers: 1 5/8 in. street
Pistons: TRW forged
Rods: 5.565 in.
Crank: cast
Comp. Ratio: 9.3:1

MAX HP: 400 @ 5700
MAX Torque: 403 @ 4500 and 5000

I'm still trying to decide if I like that hatchback look on the fiero or not. I think it makes it look like a shelby mustang wanna be IMO.