[strikingthematch]

Thanks for doing the work Killer,
As was said the extra CI WILL produce more TQ that is just one of those facts. It really does not mean that all together you will make more HP in fact I have seen 383 dyno test that make less HP all around however they put out a good 400 or so through out most of their powerband.

Trying to compare a sim 350 and 383 can't really be done... you can use the same intake same heads if you want but the cam will be much diffrent and the carb. slightly bigger on the 383. In other words each is built just for that motor.

One thing I noticed though with houmans' setup is that he has 170 cc heads. This I would think is a good size for a 350 but kinda small for a 383 and will cut back on some of the power that CAN be made. I always considered a 180cc - 195cc to be good for a 383 but thats just me.

Chris

[Houman SS '70]

Originally Posted by strikingthematch

Thanks for doing the work Killer,
As was said the extra CI WILL produce more TQ that is just one of those facts. It really does not mean that all together you will make more HP in fact I have seen 383 dyno test that make less HP all around however they put out a good 400 or so through out most of their powerband.

Trying to compare a sim 350 and 383 can't really be done... you can use the same intake same heads if you want but the cam will be much diffrent and the carb. slightly bigger on the 383. In other words each is built just for that motor.

One thing I noticed though with houmans' setup is that he has 170 cc heads. This I would think is a good size for a 350 but kinda small for a 383 and will cut back on some of the power that CAN be made. I always considered a 180cc - 195cc to be good for a 383 but thats just me.

Chris

Thanks Chris for your comment.

Acutally for my engine, I cannot change the parts any more, and am just gonna go with what I have. By the way do you think that my cam is o.k. with the setup?
This cam is very strange, it has a lot of lift but the duration is not so high. Anyway what do you think about my cam?

But after all I'll be using your comments/suggestions for the 383 which I'm going to build for my friend here, and he is going to have the headeche of ordering parts and importing and PAYING for them, so I'll advise him to get AFR's. It seems that they are the best around.

And I can also suggest him to get one of those Eagle 383 kits.
They sell it in our neighboring countries for USD 1500, which is very high compaing to US. But if he wants, I can get it for him and I really do suggest him.

Regarding the Balancing issue for my own 383, my machine shop doesn't know anything about Crank Balancing. He told me that when I'm using 400 Crank + 400 Damper + 400 flexplate + 400 Rods, there's nothing to balance? Is this true?
What do I tell him?

I wait for your reply.

Thanks,
Houman

[strikingthematch]

AFR is very good I have them on my engine. I used the 195 cc street heads but the 180cc street heads would be very good as well for the 383. Either one would make a killer set up with an RPM intake.
One thing to note is that when you use AFR heads the exhaust side flows very good and sometimes the dual pattern cams out there can over scanvage. It has been suggest a few times that single pattern cams be used with them. In the range of 280-292 comp. mang. cams

Which cam did you have again?

Eagle is pretty good for the price I can see it is more where you are but if thats cheap compared to other things then go with it. SCAT also makes really good stuff. At least the kit will have everything together. Also find out if they are pre balanced. Sometimes they come that way and then you can use 350 dampner and flexplate. Thats really the good part about a kit is that everything comes made to go together and you just need ot get the block right.
Chris

[Hippie]

Originally Posted by Houman SS '70

Regarding the Balancing issue for my own 383, my machine shop doesn't know anything about Crank Balancing. He told me that when I'm using 400 Crank + 400 Damper + 400 flexplate + 400 Rods, there's nothing to balance? Is this true?
What do I tell him?

If they're all from the same 400 you can probably get by not having it balanced since you're not going to wind it very high. Personally I'd be more comfortable having it balanced but I understand your situation.

[wshinn]

[QUOTE=Houman SS '70]Regarding the Ignition, I'll just have to get the MSD 6AL, right? Or do I need anything else as well?QUOTE]

I think you would be okay with a standard HEI distributor setup and coil. I wouldn't think you would be operating the engine at high enough RPM to warrant purchase of an MSD. Use the money saved on the MSD box and 400 crankshaft machining to buy a new forged steel crankshaft.

[strikingthematch]

I agree with wshinn, Save the money and buy MSD latter. I don't know how cold it gets here you are but thats when MSD coems in handy really. Cold starts and idle. As long as the cam is not really crazy to won't matter so much.

Chris

[Houman SS '70]

Actually,

The Crank and the rods of stock 400 are from one engine, and the damper and flexplate from another or maybe two other engine. I have to buy them from junk yard, but in mint condition.

But the problem is that I don't really know what balancing a crank really means, so that I can explain it to my machine shop? That's the real problem.

Regarding MSD, I'll definitly buy one AL box, because I've alway used them on all my engines, I had AMC 304's which i really love, and also on my SBC's which I had earlier.

My cam is Lunati VOODOO the adv. duration is: 262/268 the duration @.50 is: 219/227 BUT the lift is: .468/.489 isn't that too much? Why is this so different from other cams?

A comp. 270H doesn't have this lift??
Is there any advantage about this cam?

Thanks a lot.

And one more thing, I just asked my friend these after noon to buy me 4 Flow Tech Magnum Glasspacks. Do you think they are good? Better than Thrush?

Presently, I have two GM strait Mufflers which I got from Oldsmobile Cutlass Ciera Exhaust system. One on each side.

The inlet is 2".
Now I'm going to use two glass packs on each pipe. That means one after the header collectors, and one after the rear end where the pipes will bent in order to go out.

So I'll need two on each side.

Do you guys think that the exhause system will breath better this way? And how about the sound, is it going to be too much?

Thanks alot,
Houman

[strikingthematch]

The dampener and flexplate should be close on all 400 it won't be exact but close.
Do a search on here to find out what bal. is, pretty much it makes sure that the crank counter weights and rotating parts (pistons, rods, bearings, pins) will have close to an = pull so that it won't shake itself apart.

MSD is good with the box I believe you need use an MSD dis. and coil with it as well.

270 is a good single pattern cam. I have it in my engine and it performs very very good. When you go to 383 though the extra CI eats up more cam thus why when building the 383 with AFR heads i'd go slightly bigger.

Why are you useing two on either side? I'm kinda confused about how this is being done. All you would need to do is run a muffler after the headers. If your making it dual exhaust then one per side. If you run one then pipe then another your going to have a very muffled sound and att weight and make the exhaust more complex.
Out of a 383 or even a 350 generally the collectors for the header will be 3 inches most people use 2 1/2 inch pipes (dual exhaust = 5 inch total) that will flow up to around 450hp.
Either muffler will work fine.

Chris

[Houman SS '70]

Chris,

Actually, I've heard that using only one Magnum Glass Pack on each side will have a very loud sound? Here the police will just knock you down for a bad sound, you know!

If with one on each side the sound is not very loud, yes you are right, why should I just make it heavier and more complecated.

My header's collector is 3", but the Glass Packs are 2.5" inlet and outlet. You didn't tell me if Flowtech Magnum Glasspacks are good at all or not?

And regarding the Cam I have on my engine, the VOODOO, can someone tell me why is this cam so different with other cams?
Is it good for 383?

Thanks,
Houman

[NXS]

Originally Posted by Houman SS '70

And regarding the Cam I have on my engine, the VOODOO, can someone tell me why is this cam so different with other cams?

It's VOODOO, Magic & SnakeOil mixed together under the pale moon light, ever danced with the devil?

[Houman SS '70]

So it's a Magic? Black Magic?



How does it work with 383, good enough? #60102lk is my cam.

Tks,
Houman

[wagonboi]

Hey guys,

This is my first post and I am having a really big problem. I have a 383 stroker in a 83 Malibu Station wagon. Its been running like a champ until the other day. I was turning and all of a sudden my car just shut down on me and wouldn't turn back over. I know for a fact its not my battery or my alternator cus i just replaced the alternator and the battery I just had checked and recharged so I know it aint those. so when I looked to see what was wrong i noticed a small amount of white smoke coming from my valve covers. I thought that it was a gasket or two at first but then I started asking some of my buddies what else might cause the smoke to appear. some told me that it could be my cylinder heads rubbing. My first thought was "OMG I really don't want to tear apart my motor" but the more people I ask the same answer I got. ummmm what could possibly be a cheap way to fix it now and fast because im about to deploy next month. any suggestions?

[PatM]

Cylinder heads RUBBING????

[ericnova72]

What were they smoking when they told you about "cylinder heads rubbing"??

You will get more responses if you start your own thread. The front half of this one is 4 years old.

[wagonboi]

well here is the thing aparently i am about the dumbest person in the world i never looked inside my radiator my radiator had no fluids in it so the engine was overheating. how simple huh lol. yeah im dumb i know but hey i am still in the learning process. but all i have to do is replace my hose so i hope that works.