Is there anyone running 408 6.0 liter iron blocks making over 600 all motor before nitrous?

 

Are you talking about at the flywheel? or at the rear wheel?

 

I'm trying to make about 600 even on the motor with a victor junior single plane intake and a 4 barrel 4500 TB. Then spray a fogger on top of it.

 

well im sure it can be done. but ive only seen motors around the 416-427 ci and up make it to 600rwhp. guys 427 ls3 based motor made 613 on a pretty aggressive tune.

 

It's all about money It can be done but it isnt cheap. Solid roller hi rpm deal.
Its much much easier to up the cubic inches. We're talking at the wheels right?

 

6.0 stock crank motor has capacity to make 600bhp with correct induction cam and supporting parts.

 

Yes i want to make right at 600 to the wheels, hydralic roller camshaft, single plane intake.

I have a fully built & forged 408 CID from Brian at Late Model Engines in texas. The motor has a stock L76 intake, Ported 92mmTB, 65lbz. Fast Injectors, TexasSpeed Ls3 heads flowing 358CFM @ 650' Lift milled to 68cc, 11:5:1 compression, CamSpecs 251/259 660/664 LSA-111, 1-7/8 Hooker LT's, TexasSpeed 3" True Duals, Moser 12-Bolt 4:10's, Eaton Locker, STG 3 M6.

The car made 527/475 on motor with a speed density tune. I haven't got anything else yet for the car. it runs hard from 4000RPM and up... Anything under 2500 it does not like. Obviously... lol I can tell at 3000RPM it detinates not very badly, but enough that i can tell it has alot more left in it. Not to mention the car idols alot at 2000RPM. When it idols down it sits at about 1250 or so... Not sure if the tuner should have been in my car. I think personally not that i'm trying to get a puffy chest and brag about a motor, but for the power it made i wasn't impressed being that i see cars on here all day and everywhere else making 550+ M6 and 530+ Auto... So i am not quite sure what is going on. Any suggestions would be awesome cuz i'm planning on running alot of junk this summer so i'm trying to find out which components aren't matched besides the intake like everyone else foreal lol My heart is set on a desired range of 3500 to 7500, victor junior single plane plumbed for a fogger set-up, 4500 wilson TB, and 373 gears so i don't shift out of fourth gear on the street so i can stay in my power band longer. Driveabilty isn't **** if you can drive a M6 with a 660' lift camshaft.... lol it's a bitch to drive only making poor numbers IMO...

 

IMO, if you want 600 at the tires you're getting out of the pump gas compression range. You're going to need to be at least 12.5, probably more like 13.5 to 1 to get to 600 rwhp n/a, and you're going to need to turn more rpm then you think, it's gonna want to spin to 8000.... meaning you need a moroso pan on the car with a melling oil pump to keep it alive without the expense of a dry sump.

The super victor intake would be a better choice, the heads you have on the car aren't bad, not the best choice for what you want to do but for the $ they aren't a bad head, I think the 245 tfs larger cc cathedral heads from PI (used to be ET), or the newer ls7 port heads from PI would certainly give you a better chance. Allpro also makes a very good piece that should be considered an option. The camshaft should be fine, not sure what the low lift #"s look like but I'm sure it will work.

I would recommend a head swap and get the compression up to about 13.5 to 1, along with the intake change, spend the $ on getting a super victor ported, or if you can get one and have the $ the PI single plane will certainly serve your purposes as well. You can kiss running pump gas away, but if you want the power it shouldn't matter.... it's not reasonable IMO to be looking for that kind of power from pump gas anyway, if you can't afford race fuel to feed it you should lower your expectations and just deal with it.

 

Yeah true story guys thanks alot. I am trying to make 550+ on motor before the fogger.

 

600 at the crank...can be done with cam and carb, stock displacement, 9.8/1 compression.

 

So then realisticly my goal isn't that far off from what this bastard should really make???

 

so then 575 on motor isn't unrealistic???....

 

I am curious what cam you would spec to get to this level.....with a stickshift. I am looking to get to this power level at the crank, w/ 9.6:1 LY6 6.0L and L92 heads.

 

Someone wants a motor to do what you're looking to do, I just posted mine for sale in the eastern for sale section... priced reasonable too.