Thread: 385 fast burn crate engine 350ci

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hello everyone like this new home i found. i baught a 350ci crate engine a while back about in year 2002.

gm p/n 12496769 ZZ4 create engine
hp......................385@5600 rpm
torque.................385@4000 rpm
max.rec.rpm..........5800 rpm
compression ratio....9.6:1
block...................p/n 10105123 four bolt main,cast iron 1 piece rear main?
crankshaft...........p/n 12556307 strong forged steel
connecting rods.....p/n10108688 pm rods forged powder metal connecting rod
pistons.................p/n 10159436 high silicon aliminuim with offset pins
piston rings............p/n 12528817
camshaft................p/n 10185071 hydraulic roller
crank durration at lash point (degrees) I:275 E:280
crankshaft durration @0.50 tappet lift (degrees) I:208 E:221
maximum lift with 1.5:1 rocker ratio I:474 E:510
valve lash zero
lobe centerlines (degreese) 112
intake manifold ........p/n 12366573 aluminum dual plane , no egr
cylinder heads .........p/n 12464298 aluminum fast burn heads 23 degrees
( heads have been removed and port and polished )
intake valves ...........p/n 12555331 2.0 hollow stem lightweight
exhaust valves..........p/n 12551313 1.55 sodium filled lightweight
valve springs.............p/n 12551483 single spring
outside diameter 1.32"
pressure at installed height 101# @ 1.78"
solid height 1.22"
average rate pounds per inch 332
rocker arms ...............p/n 10089648 steel 1.5
valve lash ..................0 zero
spark plugs .................mr43lts gap .045
fuel ...........................92 octane i was running reg unleaded
timing ........................32 degrees @4000 rpm with vacum advance
disconnected
if i add hot cam...p/n 12480002 hydrolic roller = its said to produce 425hp dont know about torque ?
(degrees) crankshaft durration at lash point I:278 E:287
crankshaft durration at .050" tappet lift I:218 E:228
maximum lift with "1.6 rocker" I:525 E525
valve lash zero
lobe centerlines (degrees) 112


I had it in a 1987 montecarlo ss. I ran the motor only about a week or so when i
baught it. For several reasons got side tract did other things married etc. .
Yanked the motor out after beating my wifes causin on a 80 modle mustang and he had a stroker etc. . Sounded loud took him about two car lanes on the street ,since then yanked the engine out and sat in guarage for a long time. In that time frame had tooken the heads off and sent to get machined port and polished by hand i asume. My firts son was born then everything was put on hold and the mc i had was starting to be a rust bucket, so i even got more dissapointed and kind of gave up a little. This year i just happened to run into a young kid selling his uncles car on auto trader. The car wasnt what it looked like in the ads but the body was clean so i baught it, now im craving for a beast under the hood.
Ive read a couple of post here before i posted this and a great post on adjusting the rockers before installing the engine that was a great post.There were several methods to use. My question to the pros out here.
How much more hp can i achieve with a good cam? I have had the heads port and polished. I also have the required fuel pump and carb ( required from gm) headers etc.. I want a chopy sound so that it can sound like whats under the hood hp wise. I want my car sound like the gone in 60 seconds shelby, its exaclty what im looking for. The sound and the performance etc. lol. What cam would yall recomend. what hp will it produce. GM offers the hot cam i mentioned above giving me 425hp without touching the bottom end.
This engine will be backed up with a 6spd tranny and i believe a 456 gear need to double check.

Well gave yall as much information as i could,except carb and fuel pump ill dig those up in the garuage.
I dont want a 9 sec car etc. I want a daily driver with a chopy cam sound,oh and one more thing im thinking of putting an x pipe exhaust. I had true dual exhaust on before. Will the x pipe give me more of a shopy sound etc... ???????? i have so many ???? to ask the pros im a rookie at this, thanks in advance to everyone reading this far and anyone that helps in replys


p.s hope this is better understanding (i road the short bus)

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I've always wondered about that.


Don

K, let me put it in another way....

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what is this comparable to? A fast Burn 383.

Now I am really confused

Originally Posted by junior2

...without having to touch my bottom end???????? i have so many ????

K, Big Truck Driver can help you with all of these.

Least I'm not the only one that couldn't read that.

Junior, In future post, please try the following: Sentences with Capital letters starting and periods ending. Spaces would be a little nice. Puntuation would make things clear.

If you're asking if the Hot Cam will work without mods, it will.

Originally Posted by junior2

...the x pipe give me more of a shopy sound etc... ????????

Again Big Truck Driver can testify to this. Whenever he parks his rig in the shop, it has a beautiful shopy sound, so just try that. Forget about the x pipe.

Oooh, next time try some capitals and spaces.

Thanks for the welcoming.

No problem.


No really there is a good bunch of guys here.No one can answer because they dont know what you are asking,all you qeustions run into the next one.Anyways stick around awhile we were only playing around with you ,it could of been worse.

My head really hurts.
I am not sure if you are asking if you install the larger hyd. roller will you make 425 hp?
Typhoon ZR,there can only be one resident smart a-- and that is me un-less I decide and only if I decide to pass the torch on to you.

Originally Posted by erik erikson

Hey Typhoon, here is the smart a** torch, you da man.

Thanks Erik

Originally Posted by erik erikson

Typhoon ZR,there can only be one resident smart a-- and that is me un-less I decide and only if I decide to pass the torch on to you.

How quickly you forget!

Originally Posted by TyphoonZR

Thanks Erik


How quickly you forget!

With that being said you are the official smart a--.
This is a very serious position and will require a lot of work on your part and I really hope you will be able to fill my shoes.