LOL, 1500rwhp, you will have the heads laying on the side of the track.
The most I have seen is Vince's car and he made a shade over 1200rwhp, and his head's started lifting a little as well. Just to much cylinder pressure!

 

yeah just my two cents he def. needs the 6 bolt, its just a good idea period, yes it is more expensive but you want reliability, and you will spend more money in the long run to learn what you should have got.

 

I built Zombiess and its close to 1000. For teh most part its pretty easy.

his is.....

a 030 over 6.0 block($400)
stock crank (already had it)
forged rods(300$)
used diamond pistons (200$)
317 heads ($250) no porting
z06 cam ($100)
reused lifters and pushrods and rockers
oil pump (cant remeber but I think it was $200
stock coated exhust manifolds
a rear mounted sx80 turbo
one of my intercoolers with my piping
96 lb injectors
My exhuast....

He controls the fuel with a $500 megasquit and the stock pcm handles timing still.

Obviously making more power would be easy in many many ways. He runs 91 octane with mixed higher octane most of teh time. Just 116 and more boost he could probably hit the 1000 mark at the crank.

A front mounted indentical set up with l92's would do it easy. Oh wait I have those, just no hard numbers yet.......

 

Ok 1500 rwhp might be a bit too much. 1000rwhp should still be cake on non tweaked 6. iron block with normal head studs and thicker deck 4 bolt heads. Of course if you crank up too much timing you could still maybe push water.

Here is an interesting thread on a huge turbo iron block with 4 bolt allpro heads and nothing fancy done to things. He seems to have no trouble with water pushing.

1200rwhp range.
http://www.theturboforums.com/smf/in...topic=103675.0

 

Its a long thread here is pretty much the meat of it.

"For the record, I'm about to do a rare thing for the internet. I am going to share my first-hand experience about something. This did not come from someone else, through someone else from their brother's uncle's sister's cousin. This is coming straight from the owner, builder and funder of an actual car with a real engine, that exists in real life, not just in a fantasy, "My stock-size studded, OEM iron blocked, OEM main-capped, OEM head-gasketed, All Pro-headed, PT91-equipped, LSx engine does not push water at 17 psi and 1200+ rwhp, yet." "

 

^^^ i think the key word there is YET. if his heads do not lift it does not necessarily mean yours won't

 

It seems from closer study its more in the tuning ,especially getting greedy with timing . Bigger turbos of course should need less boost to make same power as smaller turbos. On reason to go bigger on displacement.
I built my build for 1000rwhp max anyway and likely will even run around 800rwhp and be totally happy.

 

This guy on theturboforum's website is using a 5.3 block with allpro heads.... Didnt know if you guys were aware of that.

 

Thats the thread I linked to. 5.3 iron block with 4 bolt heads. But again the general consensus is the iron blocks are plenty strong ,that most head lifting is happening from tuning particularly too much timing.

 

Less boost to make more power is very true, but it's the cylinder pressure's that will cause the head's to lift. All Pro head's have a super thick deck and will work fine. BUT that motor will eventually lift the head's. The 1/4 mile track run's put's alot more strain on the motor than the dyno will!
Before long, that guy will be changing out the head gasket's!

 

im assuming the 317s arnt really thich deck heads here. not too much experience but ?. i see a lot of aftermarket heads have such small combustion chamberssuck as 62 cc where the 317s are 72. are there heads around 72cc for aftermarked so on a build the heads can simply just be replaced instead of all new pistons to match.?

 

My afr 225 are 72cc. I used custom pistons to hit 9.5 compression ratio. Plan on running an alc injection system all the time. If wasn't going to run the alc injection likely would have stuck to 9 to 1.

 

post #25 from MY99TAWS6 made me laugh, it not everyday you actually hear someone on a site say that


as of right now, our motor is together less intake and oil pan and shaft rockers. we are using a 6.0L block, stock crank, comstar rods and diamond pistons, stock mains(studded though) and 4 bolt L92 heads with a little work done on the exhuast side. truck manifolds and a gt47-88 and we are gonna use an a2w IC. we plan on seeing around 1,000 hp. maybe not at the wheels, but hell... there have been guys with almost the same combo (stock block/crank) goin 8.50's and .60's.... i wish i would saved the link i found

 

Thanks for your opening sentence it is so true . Its the first time ive laughed on this forum.

 

lol!!!!!!!!!

 

so what's your excuse?

 

rods, pistons and a GT88 would be the cheapest route as far as turbo is concerned.

 

It can be done, but it is not easy; and not cheap. To give you a full answer you would need more space than what is allotted in this thread. Here are some references:

1. Read this book as it has a full write-up on a motor that makes 1000 hp: http://www.amazon.com/Build-High-Per...ref=pd_sim_b_1

2. Pick any sponsor to the right and they should be able to help you: LME, Kateck, EPP are but a few that can get you to your goal and they are already working with people over seas so they know how to ship cars to your area.

3. have you ever built a 1000 hp motor? It is not as simple as upgraded fuel system, rods, arp bolts, heads and intake. The assembly and tune is key and best left to those who have done this many times. I would call some of the companies i listed above for help if I were you.

Best of luck!

 

Haha... I don't have one... It seems that you forgot to capitalize. If you really wanted to be picky.

 

https://ls1tech.com/forums/forced-in...lbs-today.html

6.0 iron block
Stock heads with some valve work
91.5mm turbo
E85
1500bhp
job done!

Cheers

Chris.