Anyone build a stroker 383?

[General_01]

I have finally decided that I am going to stroke a 383 for my '71. I see that 440Source has two kits. One is to make a 438 and one is to make a 496. I would like to make a 496. It will be a 4-speed. The car does have power brakes, although I am not opposed to the idea of going manual brakes if a resevoir won't help. It will be mostly street, but I might hit the track 2 times a year tops. Since it is a stick, I can go with a single plane intake.

My question is, what would be a good intake and cam combo? Any suggestions or comments about the kits from 440Source.

[General_01]

Anyone?

I was thinking of this cam with an Edelbrock performer RPM for low end:

http://store.summitracing.com/partdetail.asp?part=LUN%2D60303LK&autoview=sku

or this cam with a single plane manifold

http://store.summitracing.com/partdetail.asp?part=LUN%2D60304LK&autoview=sku

I forgot to say the rear gears are 3:55's.

[firefighter3931]

The Holley 300-10 street dominator is an excellent low rise singleplane for the 383-400 lowdeck engine. There's one for sale here in the DC.com classifieds if you're interested.

The cam selection will largely depend on engine displacement....more cubes = bigger cam. Lots of other factrs to consider as well ; cylinder head flow, header diameter, exhaust sytem etc...


Ron

[General_01]

Finished cubes is supposed to be 496".

The heads, for now, will be a set of 2951250's with stock intake and exhaust. The plan is if I have money(i.e-sell my other car) I will put A set of Edelbrock 84cc heads on it. I plan on using dish pistons to keep the compression around 10:1. I could use flat tops and go with 88cc heads and get a little more closer to 11:1. Problem is, if I stay with the stock heads for awhile, the compression ratio is almost 12:1.

Block is .030 over.

The exhaust is going to be a set of Elite Hedman headers with 3" exhaust and an x-pipe.

[firefighter3931]

Finished cubes is supposed to be 496".

The heads, for now, will be a set of 2951250's with stock intake and exhaust. The plan is if I have money(i.e-sell my other car) I will put A set of Edelbrock 84cc heads on it. I plan on using dish pistons to keep the compression around 10:1. I could use flat tops and go with 88cc heads and get a little more closer to 11:1. Problem is, if I stay with the stock heads for awhile, the compression ratio is almost 12:1.

Block is .030 over.

The exhaust is going to be a set of Elite Hedman headers with 3" exhaust and an x-pipe.

Those 250 cylinder heads will choke a 500in motor to death.  The E-heads would be a nice option so when you build it keep that in mind when selecting the pistons. I would ue a dished flattop piston with the 84cc closed chamber heads as your future upgrade option. Tight quench motors work much better with pump gas. Keeping the compression in the 10:1 range is a good idea.

The cam will be tricky....most of the bigger grinds will require some valveguide modifications to your existing heads or you will run into retainer to guide clearance issues. Cams with more than .510 valve lift won't work on a stock (unmodified) head....unless the guides are trimmed down.


Ron

[General_01]

Thanks Ron. Sounds like I am getting E-heads whether I have a budget or not.

Actually, I am buying a motor and will be selling what I don't need, so that means the crank and the heads can be sold and then I can make up some of the cost of the E-heads. So I will just build it like I am using the E-heads and try to hide the bill from the wife.

[Jesco]

Mopar Muscle magazine March 2008 features a Stroker 431 build also include a track test "Don't discard that tired 383, build a monster". Seems lika a nice engine they build, good numbers on the et's toooo.

Maybe you can find it on the tech part at www.moparmusclemagazine.com

[MoParMetal]

if you have power steering why not go with hydroboost?
supposedly better than power brakes.

[doctorpimp]

If you're buying a motor, why don't you get a 400?
It has the same external dimensions as a 383 (both are B blocks), but a bigger bore.  Therefore you can get more cu/in out of it...

Is this for a street car?

Right form the 440source site: "Displacements calculated at .060 over (4.310") bore size."  I don't think I'd want to go that big on the street.

400 Block:
Displacements calculated at .035 over (4.375") bore size.

Part #:       Stroke: Rod Length(s): Rod Ratio:
400>>512  4.250"    6.535"            1.537
400>>500  4.150"    6.760"            1.628
400>>470  3.915"    6.535"            1.669
400>>451  3.750"    6.760"            1.802

383 Block:
Displacements calculated at .060 over (4.310") bore size.

Part #:       Stroke: Rod Length(s):  Rod Ratio:
383>>496  4.250"    6.535"             1.537
383>>438  3.750"    6.760"             1.802

[kcederwall08]

I have the 438 kit in my engine right no,. it works great, no problems at all so far. As for the intake, I'm using the Edelbrock performer RPM, since it is supposed to be the best all around intake for the 383. I know its not the same as the 496 kit, but if the quality is the same, then the 496 should be a good kit too. The only reason i didn't get the 496 was because I don't really need that kind of CI's for this car.

[Runner]

i kinda agree with going the 400 route,  however  do pla to biuld a 383 stroker t some point. i was kicking around the idea of doing a 451 (3.90 stock 4.28 bore) but i will probably just biuld a 431 sence it will be cheaper and it will be for my daily driven 68 satellite.  the reason im going the 383 route is because i have a freshly bored .030 over 383 block sitting in my shop begging me to do something with it.

          ill be biulding mine with a reworked stock crank unless i get a deal on something aftermarket.... but it would have to be stupid cheap.

[General_01]

Mopar Muscle magazine March 2008 features a Stroker 431 build also include a track test "Don't discard that tired 383, build a monster". Seems lika a nice engine they build, good numbers on the et's toooo.

Maybe you can find it on the tech part at www.moparmusclemagazine.com

Thanks. I will check it out.

if you have power steering why not go with hydroboost?
supposedly better than power brakes.

I will check it out. Not familiar with hydroboost.

If you're buying a motor, why don't you get a 400?
It has the same external dimensions as a 383 (both are B blocks), but a bigger bore.  Therefore you can get more cu/in out of it...

Is this for a street car?

Found a 383 with quite a few parts and most of the machine work done for cheap!! And I am not boring it out to .060. It will stay .030. I think 490 cubes should be good for me. Plus, I can have fun with it and be a guinea pig for everyone else.

I have the 438 kit in my engine right no,. it works great, no problems at all so far. As for the intake, I'm using the Edelbrock performer RPM, since it is supposed to be the best all around intake for the 383. I know its not the same as the 496 kit, but if the quality is the same, then the 496 should be a good kit too. The only reason i didn't get the 496 was because I don't really need that kind of CI's for this car.

Thanks for sharing. Got any pics of your motor or of the parts before they went in the motor?

[kcederwall08]

I have a few pictures here somewhere.
Heres the only picture I have of the parts.

And heres a picture of the engine while its going in

Hope it helps.

[General_01]

Cool. Thanks. I didn't need the pics for any assistance. We all just like pics. Especially of cars, working on cars, etc., etc. I like the red block. I may go that route. The engine is going in the Bee in my sig and red goes better with yellow then orange does and I am not gonna paint it turqoise.

[kcederwall08]

Thats how I felt, I didn't want to paint it turquoise either, orange wouldn't look to great with the turquoise body, and black would just look like a dirty engine, and i've had plenty of that for the last year. So thats how i came up with red/black, im pretty satisfied with it, i just need a matching air cleaner top to match the valve covers now.

[doctorpimp]

Here's my 400 stroked to 470:


All internal parts were from 440source.
3.915" stroke and 6.535" rods.  Brandon from 440source may have this combo for the 383 too.  Rod ratio is almost a perfect 1.7:1 

[General_01]

Very nice doctorpimp!!!

[doctorpimp]

Thanks General!
Got any pics of your Bee?

[General_01]

None very recent. It has been parked since 2004 and hardly driven since 2001. That is when I got the General Lee. I have decided to drop down to one car and the General lost because I have had the Bee since 1989. Lot of memories. That is how this project all started. Saturday I am going to look at the 383 and if all goes well I will have it at the machinist next week so they can do what they gotta do. Then I will order up my stroker kit and put it together. Here is a pic from a few years ago. No pics of the engine. It just has a tired old 383 in it. The motor is the one the General had in it when I bought it. The 440 in the General was in this car when I bought it in 1989.

[MoParMetal]

thats a pretty sweet bee general. i think you chose the right car. 

[PocketThunder]

what if you put the 383 4-speed back in the General and sell me your 440? 

[General_01]

The motor is for sale. Asking $16,000. You get a car to go with it.

[PA Dodger]

I was considering a 383/496 stroker buildup also. After reading many of the stroker posts on here recently I was concerned about the durability of the "maxxed out" stroker kits, such as the 496.  This is the reply I got from Muscle Motors that carries a 496/383 kit:

" The shorter rod ratio engine combos will tend to make more "engine noise".
A third option for the 383 would be a 449" combo. 3.90 stroke 6.535 long
rod. It has a VERY acceptable 1.68 rod ratio and a good amount of cubic
inches.
Heads are the most important part of making power. A ported set of Edelbrock
or Stealth heads, .500 lift hydraulic cam, pump gas and you should make an
easy 550 HP.
Mike @MM "


I am thinking about a 470 stroker 400 kit now. Seems like a better choice IMO. These links kinda steered me in a different direction as far as stroker kits go. 
           http://www.dodgecharger.com/forum/index.php/topic,6000.msg70023.html#msg70023
                          http://www.dodgecharger.com/forum/index.php/topic,32482.0.html

Hope this is helpful
Dan

[pippo702]

I made a little research and I've found several posts about stroker kits..I'm writing here hoping I've found the right one..
I'm planning to get a 440source stroker kit on my 383..not mainly my decision but my partner in this wanted more power..the engine looked great even if it was sitting at least for 3 years..it needed attentions,of course,but I think this would be too much..I'm mostly worried about durability and reliability..I'll go for the 438 (he wanted the 496,I talked him to the smaller one..)..
Would you guys please tell me anything you know about this subject? Thanks in advance..

[Chryco Psycho]

the 438 is basically a 440 in a low deck block removing over  6 lbs of rotating mass with shorter pistons & maintaining the 1.7 rod ratio , they are great package for power & durability . When you go up to the 496 the piston is very short with the oil ring over the wrist pin , more of a race build but for the amount of miles most use these cars these days it would still last for years .