BlackSS2001

iTrader: (23)

LSX block. 4.125 with 6-bolt BHJ torque plate
CP boost specific pistons. 25cc dish 1.2mm PVD coated stainless top ring, 1.2mm ductile 2nd ring, 3mm oil ring
1/2" ARP head studs 3/8" outer studs
1/2" and 7/16 ARP main studs
Oliver rods
Callies Dragonslayer crankshaft

this is what I have so far for an idea.

I'm wanting to run a supercharged set up.

I am just in the thought process so far I'm willing to take advice.

Stang's Bane

iTrader: (22)

Unless you are wanting to run a F1A or bigger you don't need that many cubes. It does sound pretty damn bulletproof though. What kind of heads are you thinking???

BlackSS2001

iTrader: (23)

I'm thinking a F1 or bigger thats why I have those cubes. Not sure on heads yet I have heard of some new ones coming out but wasnt sure on that.

Shawn @ VA Speed

iTrader: (3)

what are your hp goals,that stuff is good for 2000+hp

BlackSS2001

iTrader: (23)

1,800-2,000 hp

BlackSS2001

iTrader: (23)

I am still lost on heads and I will need an intake. I've been looking at the Wilson Manifolds, heads I'm just not sure on yet.

Stang's Bane

iTrader: (22)

You are going to need a hell of alot more blower than that for 1800-2000 HP.

What is the intended use for this?? I don't know if you can physically fit the blower you need in a 4th gen fbody in the standard location.

Hell you are looking at $3500 worth of fuel system. You are going big for sure.

As far as heads right now, you have 4 choices and 3 of them are ET with the other being ALL-Pro. Good luck and keep it shiney side up

BlackSS2001

iTrader: (23)

It's going to be a strip only car. I'm not to worried about location I have striped the entire car down. I might have to do some fabing but that's not to big of a deal. This will be a long project just for the fact of cash flow. I might have to settle with a lower power level for a while just to save some cash.

I still have to get the cage, all the suspension, the rearend, brakes.. all of it.

Like I said I'm just trying to get everything planned out, and all advice is more than welcome.

BlackSS2001

iTrader: (23)

So I'm sutck on building a 427. I'll use a LSX bloxk and I would really like to get in the 1,500hp range. What setup would you go with?

I'm just shooting for ideas here.

Stang's Bane

iTrader: (22)

To run a blower big enough to get you into that Hp range you will be looking at a f-2 class blower. That will require you use a cog drive and a whole bunch of oher fab work.

Personally I would just go with a twin 76mm setup of snails and call it a day. Check out Tiago's setup, hell it breaks everything it touches!!!

I would use the new lsx heads that are due to be out soon. JMO.

99blancoSS

iTrader: (115)

My LSX 434 will put you where you want to go with the block. $6250 plus freight, utilizing Callies internals and a Wiseco custom piston and GFX rings.

BlackSS2001

iTrader: (23)

That sounds great! I just don't know why but I'm stuck on building a 427.. maybe I just need to get off that idea..

could you pm me more info

BlackSS2001

iTrader: (23)

What fab work will I need to do? I'm planning on cutting off the front of the car after the wheel wells and building a tube front on it.


sounds like TSP's Vette set up. How much did the set up cost him?

I'm also looking at saving as much $$$$ as I can haha I know I wont be able to save a lot either way.

99blancoSS

iTrader: (115)

Thats not a problem with the LSX block, we just make it a 4.125 bore instead!
Then if some catestrophic failure happens due to a tuning issue you have material left to work with to clean it up and get going again.

BlackSS2001

iTrader: (23)

Sounds good to me!

I wish I had the funds to buy and build this now but I'm saving all the money I can now.

Do you have any recommendations on how I shoud go about getting the power range I'm looking for?

99blancoSS

iTrader: (115)

Twin turbo on a lsx 427 is what your looking for it sounds like. Save your money! You'll need about 15-18k to begin with just off the top of my head... short block is 6243, fuel sysyem is around 3500, twin turbo setup is what 5400-6k? Then a few odds and ends like heads and intake....LOL my guess is by the time your finished with just getting the engine to start.. 22k.

Stang's Bane

iTrader: (22)

PM rubbersidedown on here. He has put a f2-r on a vette and they have more room than the f-body does. I am sure others have, but he is the only one I know of.

I would say you would need to relocate the radiator and be creative with the intercooler placement unless you plan on running an in cab a2w intercooler then that is a whole different ball of wax.

Honestly, if you plan on doing this in under 2-3 years, you better get ready to melt your credit card!!

You are looking at $3k+++ in fuel system, $6.5-$7K shortblock, ~$5k for the proper heads for this, not to mention probably at least $10 for the Blower setup. And then you have the chassis, suspension, tranny, cage, & rearend to consider. There is probably another $5k in stuff that I have not even touched to consider...

Good luck and have fun!!

dads toy

Thanks for this thread, I want to have a LSX 427 or 454 with Procharger also. Not wanting your HP numbers, thinking more in the 800-900 level. Also will be a track car only. Guess I will mark this thread and see how it goes for you. good luck, my build is
1 1/2 years away, by then there should be some nice heads/intakes for the LSX.

dads toy

My parts list is around 30k including all of the chassis, suspension, procharger. that does not include labor or fuel system as mentioned in this thread. guess I need to update my spread sheet.

I am wanting less power (900 if that is considered less with these LSX blocks) so that it can be fairly reliable if that is possible. Not looking for world records, just want a fun mid to low 9 second 454 with a procharger. gotta have your toys you know.

99blancoSS

iTrader: (115)

Well the 454 requires a longer stroke which is not a great idea (with power add), not impossible and many do it without to many issues. But it does a few things. Like pull the piston out of the cylinder further, so when you address that you compromise the piston kind of. Its give and take. the cylinder is only so long and the rings need to sit somewhere..LOL so he amount of material between the rings and the distance of the compression ring to top of piston all get squashed up..which isnt the greatest in a big boost situation. We stick with a 4" stroke for power adds. We play it safe, don't like to see an engine that smokes and burns oil.
If your goal is only 8-900hp our LQ9 408 would suit you well. Very cost effective at $4292 and will handle your application.