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It would be Down right Stupidity to spend a big Waude of 💰 for the amount of power wanted.

Hell a 5.3 out of the junkyard would make 900 with refresh bearings and rings.

900 hp for pennies on the dollar...inflation included and parts unavailablity.

 

His location says VA, there's a ton of E85 around here. I don't see any reason for meth or M1 with E85 especially under 1000hp.

I agree a 427 is way overkill, as is the LSX block itself but he already has it. But if its built right should be dead reliable and you can point to it and say look I have pretty expensive things

 

The more I read this thread the more of a joke I think it is….something’s not right…

 

Might as well use the lsx block since he already has it, but I'd probably do a 388 with some cheaper 6 bolt heads and a blower or turbo capable of making 1500 rwhp. Keep it turned down to 800-900 for the street then have the capability to turn up to 1500 on race day with complete reliability and drive it home.

Hopefully the OP keeps us updated because I honestly like to see how people with infinite money do things. I have a couple friends like that, but they like much more power than 8-900 rwhp.

 

Thinking about keeping it NA and possibly turboing it down the line if I decide I wish to. After reading the comments.

It doesn't matter if it's a waste, I'm going for the best of the best and only shooting for 900 that's not changing. I'll be going NA after consideration and more than likely playing around with Forced injection down the line.

It's not stupid spending stupid amounts of money on something I want perfect. I want this engine to be over the top for the amount of hp output I don't care.

As in I'm a joke? Or the comments?

Boreing to 427, build has to be centered around that. Not going with cheap **** I have plenty enough money to throw at this engine. Going NA but that's a interesting idea, wasn't aware you could have that much of a power switch difference. I'll gladly keep everyone updated parts take a while to arrive but that's fine I am in no rush. Money isn't an issue either so if there are parts out there that are really really ******* good but expensive to the point where nobody uses them I don't give af I'll use it. I like high hp in the thousands too dont get me wrong I just want a Car that I'm literally probably going to daily that pushes 900 to the wheels, but is also as reliable as you can get an LSX. My foxbody makes 1300 to the wheels.

 

Call me bias but I think you've made a good decision on a foundation to build on. Reaching 800-900 rwhp NA is not doable without going power adders but personally 600rwhp in the 350Z would be pretty nasty for a street car. Might conisder building it for Maggie or Whipple supercharger instead of the turbo.

 

I hate superchargers

 

LOL...I love me some procharger. With that said and what you posted most recently...427 with a turbo set up for 800-900 rwhp for the street would be easy and built with all the best stuff like you plan and a properly setup turbo system you could easily switch to 1500 rwhp if you ever wanted to. With your budget that is what I'd do. Run e85 and 10 to 1 or so compression and make 900 rwhp easy on low boost and low timing then have multiple boost settings so you can easily switch to 1200 or 1500 when ever you want. Shouldn't be an issue with all the best stuff in the drive line as well and a proper fuel system either big single variable speed pump or multiple pump setup and huge injectors or even 2 sets of injectors since this is a no budget deal.

I'm genuinely interested in seeing what direction you take. The best parts do take time to get right now, but as you make a solid plan and start ordering stuff post it up.

 

I just dislike the look and sounds of them, nothing against the performance. I'm picky when it comes to my cars and I will pick a turbo every single time. I'll def keep the multiple tune settings in mind when putting together the final build list, I've heard of that for smaller numbers didn't think it could be applicable for high hp numbers.

 

ANYTHING can be done these days. With an infinite budget anything you dream can be done today. I have nothing against a turbo man they make more power than any other power adder and can do it with street ability.

 

The block number is 19260089 if that opens any doors for more information

 

It does. That’s the early generation LSX. Do you have everything to go with it, such as block plugs, lifter trays, cam retainer plate? Those are specialized items for that block, and that puppy has been discontinued for a little while now.

 

Didnt those early units also have issues with core shift and need to be sonic checked before boring to larger diameters.

 

getting parts for it isn’t an issue for me

 

If you keep it NA, probably need to rethink power goals. LS is kind of displacement limited. I can point you to some of the best 427-468 CI builds on this site, and pretty much all of them top out in the low 700's to the tires. Likely several are in the 820-850 range at the crank. There are ways to stay NA and hit 800 rwhp, and most of them rhyme with "R P M". But at this point, you have a high revving monster that's a real PITA to drive in parking lots. Not to mention the reliability issues that come with a high RPM motor. I think your original plan for turbo is the best way to handle it.

Don't know if you've considered this option, but you could build a 600-630 rwhp 427 with a moderate cam and be very streetable, and just hit it with a 250 shot when the need arises. Would be very reliable and easy to drive. Heck you can still call it NA -- Nitrous Assisted. Also, thinking this through, if you did build this way, you would not need much boost at all to cross 800 when the time came. Probably 8psi would be enough. Just a thought.

 

it’ll be running 800 minimum at all times. And if I can only get 700whp NA on a fully built 427 with everything maxed out then I’ll have to go turbo I’m not running nos the entirety of my driving time.

 

You aren't going to be in boost the entirety of your driving time either. What machine shop are you having prep the block?

 

a colleague of mine

 

 

If not then give these a folks a call and they should be able to help with those.

https://sdparts.com/?gclid=CjwKCAjwv...BoCsskQAvD_BwE