warhawk vs. gm lsx block FI builds?
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Joined: Nov 2001
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From: Virginia
warhawk vs. gm lsx block FI builds? who is doing these? is there an aluminum option? availability?
looking for a back up plan, i have suspicion that my block has a crack in it from the wreck. it runs fine, but somehow im getting water into the oil
what intake fits these? stock ls7 and fab aluminum from someone? Is there a cable tb available for the ls7 intake?
looking for a back up plan, i have suspicion that my block has a crack in it from the wreck. it runs fine, but somehow im getting water into the oil
what intake fits these? stock ls7 and fab aluminum from someone? Is there a cable tb available for the ls7 intake?
i would wait for the LSx block, becuase of the 6bolts per cylinder for the head, and wouldnt the intake depend ont he heads u use, if u use l92, which would be the best, then u could only use an l92 intake, and vice verso with ls7 heads
Originally Posted by MIGHTYMOUSE
who is doing these? is there an aluminum option? availability?
looking for a back up plan, i have suspicion that my block has a crack in it from the wreck. it runs fine, but somehow im getting water into the oil
what intake fits these? stock ls7 and fab aluminum from someone? Is there a cable tb available for the ls7 intake?
looking for a back up plan, i have suspicion that my block has a crack in it from the wreck. it runs fine, but somehow im getting water into the oil
what intake fits these? stock ls7 and fab aluminum from someone? Is there a cable tb available for the ls7 intake?
Intakes will depend on heads used. For the shortdeck versions of the blocks, any head and intake combo will work. For the tall deck, it will have to be a custom piece or maybe they will introduce one for the tall decks(probably carb style)
Any 4 bolt 90 MM cable throttlebody will work for the LS7 intake, although I have heard the best results were with the UMI piece.
Good luck!!
FWIW both blocks will have a 6 bolt head option, however they are not the same. Any regular ls head will bolt up, just not be able to use the extra head bolts.
Originally Posted by INTMD8
I'm doing a GMPP LSX, 427ci, twin turbos, ET LS7 heads and GM LS7 intake. The weight savings of the aluminum block would be nice, but I'm not willing to pay twice as much for it.
doesn't DART have a new billet aluminum block that is built like a tank? I know I saw it in one of my gm high tech mags recently? I think it might be less expensive than the warhawk block.
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Originally Posted by INTMD8
I'm doing a GMPP LSX, 427ci, twin turbos, ET LS7 heads and GM LS7 intake. The weight savings of the aluminum block would be nice, but I'm not willing to pay twice as much for it.
i plan on building a backup gmpp lsx block but not until they release a set of heads that can make use of the 6 bolts per head...... no real point in trying to make 2500hp if the heads are lifting at 1000
Didnt one of the guys from Warhawk say you could order thier LS7x head in a 4bolt pattern, and your machinist could drill the extra 2 bolts holes to fit a GMPP LSx block? I'm pretty certain I saw that somewhere on here
Originally Posted by 52172
doesn't DART have a new billet aluminum block that is built like a tank? I know I saw it in one of my gm high tech mags recently? I think it might be less expensive than the warhawk block.
Last edited by 1CAMWNDR; Mar 7, 2007 at 03:49 PM.
To me the ideal thing to have would be some 6 bolt cathedral heads on a LSx block. I dont think that is going to happen though, i have no need for heads or a block that can make 2500hp. 1000-1200 at the crank and not worrying about head gaskets will make me happy..
Originally Posted by kp
To me the ideal thing to have would be some 6 bolt cathedral heads on a LSx block. I dont think that is going to happen though, i have no need for heads or a block that can make 2500hp. 1000-1200 at the crank and not worrying about head gaskets will make me happy..
people on here act like they are going to get that 2500hp and be just fine on the street..... 1k is a nice number, you only need so much on the street before it gets rediculous.
but i would def love the LSX block with twins or a single
but i would def love the LSX block with twins or a single
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Joined: Nov 2003
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From: Norn Iron
Originally Posted by kp
To me the ideal thing to have would be some 6 bolt cathedral heads on a LSx block. I dont think that is going to happen though, i have no need for heads or a block that can make 2500hp. 1000-1200 at the crank and not worrying about head gaskets will make me happy..
Is it a block flex issue ? Head issue ? lack of adequate stud ? Or simply the gasket not being sufficient.
If the latter, why not opt for 1/2" or larger studs ? ( I assume that is possible ? )
Why not opt for an alternative gasket arrangement ? Copper with stainless rings for example ?
There are quite a few other engines ( most smaller in size than LSx ), making staggering HP per cubic inch, yet they only have 4 bolts per cylinder. What differs with their head sealing arrangement ?
I've got one reserved and a set of ETP LS7s with the GMPP bolt pattern on the way. Build will end up with a 4" crank, 4.100 Diamond -30cc F/I pistons and lunati Pro-Mod rods.
phil
phil
Originally Posted by stevieturbo
So where do you feel the weakness lies with an Alu LSx block and heads in terms of head gaskets ?
Is it a block flex issue ? Head issue ? lack of adequate stud ? Or simply the gasket not being sufficient.
If the latter, why not opt for 1/2" or larger studs ? ( I assume that is possible ? )
Why not opt for an alternative gasket arrangement ? Copper with stainless rings for example ?
There are quite a few other engines ( most smaller in size than LSx ), making staggering HP per cubic inch, yet they only have 4 bolts per cylinder. What differs with their head sealing arrangement ?
Is it a block flex issue ? Head issue ? lack of adequate stud ? Or simply the gasket not being sufficient.
If the latter, why not opt for 1/2" or larger studs ? ( I assume that is possible ? )
Why not opt for an alternative gasket arrangement ? Copper with stainless rings for example ?
There are quite a few other engines ( most smaller in size than LSx ), making staggering HP per cubic inch, yet they only have 4 bolts per cylinder. What differs with their head sealing arrangement ?
What other engines do is of little concern to me really, bore spacing, combustion chamber design, space between the bolts, deck integrity, head/block density/materials, compression, cylinder pressure etc all add up. Just saying one engine has 4 bolts and holds x amount of bhp per cylinder means they all should is kind of going out on a limb. If it were that easy a lot of aftermarket companies would be out of business.
Personally I dont have the money to throw at the problem and figure out exactly what is causing it, but I would throw the money (a reasonable amount of it anyhow) at a DEFINATE solution to the problem and that would be a cheapish 6 bolt solution. But switching to LS7 heads/valvetrain and intake PLUS a 2-4K block is not the answer for me. Seems simple to me
Also, I'm not being a smartass though Stevie and I know exactly where you are coming from. I have far from the perfect setup and like everyone else I want a simple and cheap solution when I know there is none
Last edited by kp; Mar 7, 2007 at 06:18 PM.