Procharged/Carbed 4.3

[SYCLONE#1531]

I am looking for some input? I am going to build a 4.3 with RPMS Ported Vortecs/ nitrided crank/ Eagle rods/JE pistons/ custom comp 224+ at .050 cam 112 lobe sep/ RPM custom sheetmetal single plane CARB intake. 650/750 carb/ D1 Blow Thru Procharger set up/ 3000+ stall with a upgraded 700r4. I am guessing that I will make 300+hp on the motor alone? I am planning to run 20 to 25lbs of boost with methanol inj. I figure I should be in the 700hp+ range. I am not going to a bowtie block. Is it possible that the stock block with 4 bolts will take the stress? I have searched and have yet to find any similar builds. I was going to install a V8 but have now decided against it. I believe that this should be a fairly reliable set up while keeping the V6 character as GM intended! I am looking for high 9s. to low 10s

 

[sharkbait]

Re: Procharged/Carbed 4.3

a newb myself. but im gonna guess your gonna hear alot of....

reliable and turbov6 don't go together
blow threw carbs are harder to tune than you think
if you want big power go v8 TT

but thats just my guess....opcorn2:

 

[jpalmer]

Re: Procharged/Carbed 4.3

you will have to ditch the 700r4 for that kind of pony, unless you plan on never using the power. Btw i would go v8 too, procharge that it will be cheaper in the long run.

 

[turbodig]

Re: Procharged/Carbed 4.3

I am looking for some input? I am going to build a 4.3 with RPMS Ported Vortecs/ nitrided crank/ Eagle rods/JE pistons/ custom comp 224+ at .050 cam 112 lobe sep/ RPM custom sheetmetal single plane CARB intake. 650/750 carb/ D1 Blow Thru Procharger set up/ 3000+ stall with a upgraded 700r4. I am guessing that I will make 300+hp on the motor alone? I am planning to run 20 to 25lbs of boost with methanol inj. I figure I should be in the 700hp+ range. I am not going to a bowtie block. Is it possible that the stock block with 4 bolts will take the stress? I have searched and have yet to find any similar builds. I was going to install a V8 but have now decided against it. I believe that this should be a fairly reliable set up while keeping the V6 character as GM intended! I am looking for high 9s. to low 10s

Fairly Reliable and 9-second doesn't really go together.

I doubt highly that you'd make 300+ on the motor unless you're running *lots* of compression.

You're pushing the limits of the block. If it never pings, it'll live just fine. Since the computer isn't going to be running things anymore, you'll have no way (outside of your ears) of telling when it pings.

There have been stock-block 9s... but not many of them.

 

[blk00z28]

Re: Procharged/Carbed 4.3

If you want to have a truck like this I would suggest just buying a clean s-10 and building it like that. It will cost a BUNCH less. And just throw in a T400 in it. You will run 9's due to it being lighter assuming you build the motor like you think you want.

 

[Silly]

Re: Procharged/Carbed 4.3

I would like to see pics and get more info on the intake. I run a carb'd 4.3 myself

 

[NecroWolf]

Re: Procharged/Carbed 4.3

use the older non balance shaft block, i'd use a carb box to make for your blow through. you can find after market knock sensor setups to help keep it alive.