Generation IV Internal Engine - What is the best block for 454

OK I HAVE BEEN READING FOR WEEKS
what i cant decide is what is the best block for a 454 build street only with PD top mount (later on maybe) NO SPRAY it runs out :emb:
i have an LS3 A6 powered maloo with a E38 ECM
so i want to keep a 58x reluctor and all the ls3 sensors ect
my big concern is piston rock on BDC
and oil burning issues
these are the opt as i see them so fare

1/ls2 RED sleeved block ls3 to dear at the moment
and i wont to sell mine compleat an have a buyer
2/LSX some say yes some say no dont really wont extra120lbs
3/LS7 not very good for FI as well as big stroke

WHAT IS the advantages of the RHS high CAM block with std deck height a far as sleeve length goes other then more room for the rotating ASM
war hawk ??
others ??
not interested in ones that wont except lsx style intakes and heads must look OEM
looking for reliability rather then HP as it will have enough

thanks

4) RHS Aluminum race block.... up to 500ci and 2500hp. Ive been dreaming of one for a while, since I saw it last year at PRI. Looks like you can order it completely machined and ready to assemble too.

Copied from website:

• Extra long liners for standard (5.87”) & tall (6.38”) decks
• “Long arm friendly” design – Accommodations for up to 4.6” stroke with standard rod pin diameters (2.100”) & oversized 60mm camshaft
• Raised cam centerline (.388”/9.86mm) to allow larger stroke; 2 extra links in the timing chain – Timing sets available from COMP Cams®

Imo the lsx would be a good way to the block holds up much better for FI. The advantage of the raised cam on the RHS block is to allow clearance for the larger stroke. I have built many 434 cubic conventional SBC with std deck heights and they do have piston rock at the bottom but as long as the machine work is done correctly it's not a problem. The extra weight of an LSX block can be well over come buy the hp gains so i don't consider it to be a problem.

OK I HAVE BEEN READING FOR WEEKS
what i cant decide is what is the best block for a 454 build street only with PD top mount (later on maybe) NO SPRAY it runs out :emb:
i have an LS3 A6 powered maloo with a E38 ECM
so i want to keep a 58x reluctor and all the ls3 sensors ect
my big concern is piston rock on BDC
and oil burning issues
these are the opt as i see them so fare

1/ls2 RED sleeved block ls3 to dear at the moment
and i wont to sell mine compleat an have a buyer
2/LSX some say yes some say no dont really wont extra120lbs
3/LS7 not very good for FI as well as big stroke

WHAT IS the advantages of the RHS high CAM block with std deck height a far as sleeve length goes other then more room for the rotating ASM
war hawk ??
others ??
not interested in ones that wont except lsx style intakes and heads must look OEM
looking for reliability rather then HP as it will have enough

thanks

Do you want to make power or leave some on the table-

Do you want to get all your moneys worth-

the maloo is already heavy so putting a lsx in it cant real harm it anymore unless you want to chase every single et down the track-

Money is also a concern as whats the budget-

The thing will make torque even if it runs like a busted ass-so what are you going to do about the trans?

Least but not least the cam-it should be a direct reflection of the head you are using then the engine aspects, the vehicles weight, the tran's and the converter, etc, etc, etc

I am in a log process of doing a 454 for a customer but i am a long way off from even starting it-

Like i stated in one of your other thread's if i was doing a 454 i would not be using a ls3/l92 head on it and you stated now that you like to put some boost threw it..no no-

I might be wrong but that's my opinion.

Do you want to make power or leave some on the table-(DEPENDS ON RELYABILTY)

Do you want to get all your moneys worth-(YES)

the maloo is already heavy so putting a lsx in it cant real harm it anymore unless you want to chase every single et down the track-(NOT REALY I DOUBT IT WILL SEE THE TRACK STREET ONLY)

Money is also a concern as whats the budget-(UNDER 15,000 USD I HAVE TO GET IT OVER HERE AND FIT IT TO Along with alot of other things )

The thing will make torque even if it runs like a busted ass-so what are you going to do about the trans? (GET IT BUILT)

Least but not least the cam-it should be a direct reflection of the head you are using then the engine aspects, the vehicles weight, the tran's and the converter, etc, etc, etc (235/240/114/585lift ISH NOT VERY BIG stock stall )

I am in a log process of doing a 454 for a customer but i am a long way off from even starting it-

Like i stated in one of your other thread's if i was doing a 454 i would not be using a ls3/l92 head on it I (WAS ASKING THE QUSTOIN IF IT WOULD BE OK ?AS LS3 HEADS SEAM TO BE GOOD )
(AS I HAVE READ IT LOOKS LIKE LS7 TOP END IS THE GO )(what is the difference of ls7 heads to ls3 heads do ls7 have rectangle ports BIGER VALVES ) and you stated now that you like to put some boost threw it..no no- (I DID SAY MAY BE IF IT DIDENT MAKE IT unreliable )

I might be wrong but that's my opinion.


(im still deciding on a good reliable block HENCE THE POST
so haven't got in to the other stuff yet)
cheers

OK I HAVE BEEN READING FOR WEEKS
what i cant decide is what is the best block for a 454 build street only with PD top mount (later on maybe) NO SPRAY it runs out :emb:
i have an LS3 A6 powered maloo with a E38 ECM
so i want to keep a 58x reluctor and all the ls3 sensors ect
my big concern is piston rock on BDC
and oil burning issues
these are the opt as i see them so fare

1/ls2 RED sleeved block ls3 to dear at the moment
and i wont to sell mine compleat an have a buyer
2/LSX some say yes some say no dont really wont extra120lbs
3/LS7 not very good for FI as well as big stroke

WHAT IS the advantages of the RHS high CAM block with std deck height a far as sleeve length goes other then more room for the rotating ASM
war hawk ??
others ??
not interested in ones that wont except lsx style intakes and heads must look OEM
looking for reliability rather then HP as it will have enough

thanks

Resleeved LS2 block

.

LSX with dragon slayer crank is what I'm running.. so far it handles a 250shot with no problems :)

LSX with dragon slayer crank is what I'm running.. so far it handles a 250shot with no problems :)

what bore and stroke, rods length ,pistons,ring s ect ??

We offer a few different options for a 454, LSX or LS2 being two of them. I went LS2 to save the weight.. little more expensive than going the iron route. RHS block would be nice if it's in the budget.

We offer a few different options for a 454, LSX or LS2 being two of them. I went LS2 to save the weight.. little more expensive than going the iron route. RHS block would be nice if it's in the budget.

can you drop us a PM with some prices opt ??

will do, we've got a LS2 454 going into a maloo in the UK :)

Yeah something tells me I know about that one ;)

Best block for a 454? Dart Billet Block.

Once you got to a power adders the advantage with large cubic inches is diminished. The problems that you discuss are trade offs when it comes to big cubes in a short deck block.

For a 454 reliable street application you need a tall deck block. the only one that is reasonably priced (when it starts shipping LOL) is the LSX tall deck.

The RHS is a nice part but requires a lot of expensive components since they raised the cam .700" .

If it's NA only then you can get away with a longer rod without the pin killing your ring package and top land distance. If it's a dished deal your only asking for trouble.

Now remember this is for a RELIABLE street engine. I'll build a race engine all day long with that because it's not going to get a lot of miles and I will tear it down often.

And a re sleeved LS2??? what is up with that? There are so many better options I am confused why I see this mentioned so often......

The LS7 block is a gem for big cube reliable street engines. Will handle big power and is reasonably priced.


Robin

Yeah something tells me I know about that one ;)

:secret2: by the 440 in your sig I think I've heard about your car as well :)

And a re sleeved LS2??? what is up with that? There are so many better options I am confused why I see this mentioned so often......
Robin

Because of the price of the LS7 block the resleeved LS2 becomes a better option with being able to add a slightly longer sleeve and bigger bore. Add in the cracking issue under certain conditions with the LS7 block and the LS2 becomes more desirable.

There are some other good options as well, but the three in your orignal post can all be made to work well. Although they have different sleeve lengths, any of the three can work well as long as the piston manufacturer has done their homework. Some haven't and I can assure you that you will have obscene wear and oiling with some of their offerings. Best of luck, Brian Nutter

Because of the price of the LS7 block the resleeved LS2 becomes a better option with being able to add a slightly longer sleeve and bigger bore. Add in the cracking issue under certain conditions with the LS7 block and the LS2 becomes more desirable.

Though of doing a sleeved LS2 over the LS7 block. ohh well.

Do you want to make power or leave some on the table-

Do you want to get all your moneys worth-

the maloo is already heavy so putting a lsx in it cant real harm it anymore unless you want to chase every single et down the track-

Money is also a concern as whats the budget-

The thing will make torque even if it runs like a busted ass-so what are you going to do about the trans?

Least but not least the cam-it should be a direct reflection of the head you are using then the engine aspects, the vehicles weight, the tran's and the converter, etc, etc, etc

I am in a log process of doing a 454 for a customer but i am a long way off from even starting it-

Like i stated in one of your other thread's if i was doing a 454 i would not be using a ls3/l92 head on it and you stated now that you like to put some boost threw it..no no-

I might be wrong but that's my opinion.


Why is this?? Would a LS9 or LSA head be better??

Try LS7 or similar I think was the intention mate. ls3=ls9=lsa=l92 head.. well portwise anyway.

Try LS7 or similar I think was the intention mate. ls3=ls9=lsa=l92 head.. well portwise anyway.

is there a link to ls7 block/head speck similar to this ls3 one
this is very informative for stock stuff and newbys anyway :eek2:

http://www.camarohomepage.com/ls3/index.htm

Because of the price of the LS7 block the resleeved LS2 becomes a better option with being able to add a slightly longer sleeve and bigger bore. Add in the cracking issue under certain conditions with the LS7 block and the LS2 becomes more desirable.

i gather you are limited to 4.155 bore for fi with ls2 re sleeve and 4.185 for N/A reliability wise
is this the end of THE line for the block no room for future cleanup honing rebuilding ect ?

WOULD you be better of with as big a bore as possable and keep the stroke as short possable (still 454)for hi milage
would that keep the skirt in the bore with the wright piston rod combo



is the GM PERFORMANCE PARTS 454 crate WITH LSX HEADS as seen on seama show vido avalble yet dont seam to be much on there site price ect
GM PARTS say 4.25 bore on the new lsx extrem block
is this a newer version or is there only 2 lsx blocks high and std is the casting problem that thay hade a thing of the past now

Lots of detail there on the LS3 mate
http://www.corvettemuseum.com/specs/2006/LS7.shtml
Some here on the LS7.
Try and get a hold of the presentation last year at PRI for the ATEC from one of the GM LS7 team. Some good info on the extra work that goes into the LS7's

Doesnt the LS9 head have a thicker deck that would allow it to stand up to FI (obviously) or nitrous?? To me, this solves one of the major drawback of the LS3/L92 head. Can the exhaust on the LS9 head be made to flow a bit better then the LS3/L92 one??

Lots of detail there on the LS3 mate
http://www.corvettemuseum.com/specs/2006/LS7.shtml
Some here on the LS7.
Try and get a hold of the presentation last year at PRI for the ATEC from one of the GM LS7 team. Some good info on the extra work that goes into the LS7's

nice little lsx head vido from seama
link

http://video.google.com.au/videosearch?hl=en&source=hp&lr=&rlz=1W1SUNA_en&q=lsx+heads+vido&um=1&ie=UTF-8&ei=7zHqSsurJJHM6wPFuJjvCw&sa=X&oi=video_result_group&ct=title&resnum=1&ved=0CBwQqwQwAA#

click link in my sig.
morris carries budget alum. ERL resleeved engines that will go from 427-500ci

what are your thoughts on thease ive never heard of them over here in the bush :eek2:

http://www.totalseal.com/TechPage.aspx#trTSTechnology

what are your thoughts on thease ive never heard of them over here in the bush :eek2:

http://www.totalseal.com/TechPage.aspx#trTSTechnology


Good rings we were using them before Wiseco offered their GFX rings for everything.

Total Seal has been around a long time and specialize in piston rings. We use them allot on our big boosted/ large displacement engine builds because they have every ring you could imagine and can put any combination together for you. They aren't cheap though but worth the money in some of these big builds of ours.
Just like 99blancoSS said the Wiseco GFX rings will do fine on most Street/Strip builds.

thanks for that info
do you use the gapless or just standard ones
cheers

One of the recent engine masters magazines had a review of rings, the gapless ones were about 10rwhp better than the usual gapped ones IIRC.