Vortec 350 to 383

[Disturbed]

Hey guys,
I am hoping to start on my 1st project with my dad. The vehicle is a 1996 Tahoe with a 5.7L Vortec. The engine needs to be rebuilt, and I have spoke with a machine shop which will be doing the work. I am looking at doing a 383 Stroker. The 4L60E was rebuilt with HD parts less than 15,000 miles ago. I am looking for advice on which cam to use, from what I have read, I don't want to go more than a .470-.475 lift on the cam. I will be using the same Vortec heads. I have several parts that I have been thinking about using, but I wanted to know what you guys think.

I will be using a **** assembly which includes a cast crank, Forged Pistons, and forged rods.

http://www.summitracing.com/parts/SCA-1-91055/

I am unsure on the cam so I have 2 options. I am not wanting too much of an aggressive sounding lope, I want it to sound like it has a cam, but not to the point to where it dies.

http://www.summitracing.com/parts/CCA-CL12-249-4/

http://www.summitracing.com/parts/CCA-CL12-256-4/

http://www.summitracing.com/parts/CCA-CL12-262-4/

I will also be installing some headers, and I was wondering what you guys think about these. I don't want to run into problems when I putting the motor back in. So basically I am interested in these as longs as I don't have a headache because they don't fit when I reinstall the engine.

http://www.summitracing.com/parts/PTE-H8059/

I will be looking at getting a 2200-2600 stall torque converter. Please advice which should be good. This will be a daily driver, to and from work which is about a 5 mile trip to and from work. I am also toying with the thought of spray. I will say a 75 wet shot of nitrous at most. I will be swapping the fuel injectors to the AC Delco Spider set up. I have a brand new fuel pump also.

I would like to add that IF and and when the 4L60 breaks, because everyone makes it seem that will break, I have a good friend who has a 4L80E he will sell, I don't want to pay for it at this moment.

Please let me know what yall think. The vehicle again is a 96 4 door Tahoe 4x4, on 18" raptors with 265/75 tires.




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[SunlitComet]

According to your signature didn't you just sell the 1996 Tahoe?

At any rate GM has done all the work already and came up with this stroker.

http://www.gmperformanceparts.com/EngineShowcase/index.jsp?engId=HT383E&engine=HT%20383E&sku=17800393&engCat=sb

All new components. nothing reused. A bbtune afterwards is a necessity.

 

[Disturbed]

According to your signature didn't you just sell the 1996 Tahoe?

At any rate GM has done all the work already and came up with this stroker.

http://www.gmperformanceparts.com/E...=HT383E&engine=HT 383E&sku=17800393&engCat=sb

All new components. nothing reused. A bbtune afterwards is a necessity.

So I had thought man, long story short, I have it again, so I am rebuilding. I have a Blackbeard tune already, but will send it in for a retune. I will be spending about 1/2 the amount going this route vs a GM built one. I couldn't really find the specs of that HT383 cam.


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[SunlitComet]

http://www.gmperformanceparts.com/E...=HT383E&engine=HT 383E&sku=17800393&engCat=sb

 

[Ceejkay]

383 using 87 octane, thats kinda nice

 

[Disturbed]

http://www.gmperformanceparts.com/E...=HT383E&engine=HT 383E&sku=17800393&engCat=sb

******** this iPhone, I don't have flash player on my phone. So I will look at the link at home later tonight. Oh and I want to run 91 octane. I don't mind the extra cost of fuel.


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[ch4d]

I can run 87 out my stroker by S&J I dont mind it but i like running 89 out of it.

 

[Disturbed]

Guys, so can someone tell me if my cam choices are ok? I dont think I will want to use the HT383 cam.

 

[retorq]

I would pick none of those, your cam currently is a roller cam, there is no sense moving away from that. you have everything you need to run a roller in the new block ...

 

[Disturbed]

I would pick none of those, your cam currently is a roller cam, there is no sense moving away from that. you have everything you need to run a roller in the new block ...

Ok, now we are talking. I am unfamiliar with gas engines. I am pretty knowledgable with diesel engines and unless you are have a super high HP build, you don't need to change them out. So can you please let me know which roller cam you would recommend. Thanks Retorq


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