427 Lunati ls1 kit question
08-29-2006, 01:50 PM
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427 Lunati ls1 kit question I have a 98 ls1 engine. Like to go to a 427 ls1 kit. Summit has a Lunati 427 kit for 3600. (http://store.summitracing.com/partde...lun-ea035-427). Has anyone used this kit? I'm assuming all I'll need is boring , tuning,etc. How does Lunati stack up against others as far as cost, performance durability?
08-29-2006, 01:57 PM
#2
Boring? No, you'll need a whole new block. 97-98 LS1 blocks were not good blocks to start with, so you'll need a 99+ block. After you get it, you'll have to send it in to have it resleeved to get the 4.125 bore. That will run you around $2800. Best to use a LS2 block for this. As for the stroker kit, it's top notch. Really a overkill unless you plan to make 1000+ rwhp. You can get a Eagle rotating assembally for half that and it will handle just about anything. If your looking for a affordable stroker, look into the 402 kits that all the sponsors are selling. You can have the whole motor built for a touch more than that rotating assembally costs. You also have to remember, if you go with a bigger motor, you'll need the suppoting parts to make it perform correctlly. Heads, headers, cam, tuning, rear end, clutch and so on.
08-29-2006, 05:55 PM
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Beast96Z why not a 97-98 block, if it is getting sleeved it doesnt matter. the 97-98 had less materal in the cyl walls but if they are getting pulled 
......... I have never heard of a block comming part for any reason other then a Wheelie stand , or a rod/crank breaking and putting it threw the side, and then it wouldnt matter if it was an ls1 (any year) or a ls6,ls2,ls7. nice 454 btw. 
jsconiers if you want a 427 get an ls1 block (any year) sent it to Race Engine Developement and have Steve work his magic and make it an MID ... all problems solved. and you have a BADASS block for less than the price of a C5R , Warhawk, the new GM block . With an MID you can do the same boring or at least clost to the Warhawk.... oh and it weighs less too.
My MID i only went 4.125, i am already planning on future rebuilds
LS2 is a nice option and in all honesty if i had that option before i started mine i would have used it.
Ask you self why you want a 427 or bigger, either way you look at it not only is bigger better but it cost more too.
Katech is now selling Value 427's short blocks.
And as far as Lunati , its quality.
......... I have never heard of a block comming part for any reason other then a Wheelie stand , or a rod/crank breaking and putting it threw the side, and then it wouldnt matter if it was an ls1 (any year) or a ls6,ls2,ls7. nice 454 btw. jsconiers if you want a 427 get an ls1 block (any year) sent it to Race Engine Developement and have Steve work his magic and make it an MID ... all problems solved. and you have a BADASS block for less than the price of a C5R , Warhawk, the new GM block . With an MID you can do the same boring or at least clost to the Warhawk.... oh and it weighs less too.
My MID i only went 4.125, i am already planning on future rebuilds
LS2 is a nice option and in all honesty if i had that option before i started mine i would have used it.
Ask you self why you want a 427 or bigger, either way you look at it not only is bigger better but it cost more too.
Katech is now selling Value 427's short blocks.
And as far as Lunati , its quality.
Last edited by KHShapiro; 08-29-2006 at 07:02 PM.
08-29-2006, 07:36 PM
#6
KH, I thought I had read somewhere that no sleeving places were even messing with 97-98 blocks. Not to mention that whole notch in the block/head thing that seems to have people buying the wrong gaskets or getting the wrong heads.
JS, alot of the sponsors to the right will build you a 402 for much cheaper than you could ever think about a 427. Hell, some places are doing .030" over bores on the LS2 sleeves and throwing in 4.100" eagle cranks and getting 418 cubes for no more cost than the 402. You just have to weigh your options and you budget.
JS, alot of the sponsors to the right will build you a 402 for much cheaper than you could ever think about a 427. Hell, some places are doing .030" over bores on the LS2 sleeves and throwing in 4.100" eagle cranks and getting 418 cubes for no more cost than the 402. You just have to weigh your options and you budget.
08-29-2006, 10:10 PM
#7
97 98 blocks The 97 98 blocks are fine bases for the Darton MID sleeves. I do them all the time.
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
Originally Posted by Beast96Z
KH, I thought I had read somewhere that no sleeving places were even messing with 97-98 blocks. Not to mention that whole notch in the block/head thing that seems to have people buying the wrong gaskets or getting the wrong heads.
JS, alot of the sponsors to the right will build you a 402 for much cheaper than you could ever think about a 427. Hell, some places are doing .030" over bores on the LS2 sleeves and throwing in 4.100" eagle cranks and getting 418 cubes for no more cost than the 402. You just have to weigh your options and you budget.
JS, alot of the sponsors to the right will build you a 402 for much cheaper than you could ever think about a 427. Hell, some places are doing .030" over bores on the LS2 sleeves and throwing in 4.100" eagle cranks and getting 418 cubes for no more cost than the 402. You just have to weigh your options and you budget.
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Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
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08-29-2006, 10:41 PM
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Originally Posted by Steve - Race Eng
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks.
Steve
Steve
lie to me if you have to.
By the way if anyone doesnt know, STEVE is DA'MAN!.... When he is done with a block you want to wear it around your neck and show it off like a new born.
08-29-2006, 11:21 PM
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After checking websites it looks like I can get an ls2 402 short block for about 4k without a core. Would I save any money by using my current ls1 block? If I bought the short block would anything off my current ls1 be transferable?
Originally Posted by Steve - Race Eng
The 97 98 blocks are fine bases for the Darton MID sleeves. I do them all the time.
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
08-29-2006, 11:49 PM
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Sleeve it. Sent it to Race Engine Developement run you around 3k-3500, spend the 3600 for the Lunati kit and have a worry free short block and make it a 427 or a 454 if you want...Yes everything you use on an LS1 you can use on the MID except the head gasket, and oh yeah if you go 4.125 you can use the LS7 head...The MID creates a complete new Deck , hench the MID= Modular Intergrated Deck...Go check out www.RaceEngineDevelopment.com ,Steve is a wealth of information not to mention he helped Design the MID for Darton. ok enough of me singing Steve's praise
MID it and join the Family!!!!!!
MID it and join the Family!!!!!!
08-30-2006, 12:14 PM
#13
channel milling Sorry Keith but I wrote the program about four, five months back. Did your block over a year ago.
Originally Posted by KHShapiro
so when you did my MID did you have the program in time for mine?
lie to me if you have to.
By the way if anyone doesnt know, STEVE is DA'MAN!.... When he is done with a block you want to wear it around your neck and show it off like a new born.
lie to me if you have to.
By the way if anyone doesnt know, STEVE is DA'MAN!.... When he is done with a block you want to wear it around your neck and show it off like a new born.
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
08-30-2006, 01:14 PM
#15
Buy a LQ9 408 with forged everything for N20 and run a dual stage 300 shot and walk on 427s all day long for 1/2 to 3/4ths the cost.
Or, an even cheaper route, build a 6.0l LQ9 or even your current LS1 with parts to handle N20 and run the same 300 shot. Drives nicely through town, doesn't kill the wallet and could put down high 9s low 10s with the flip of a switch. Whatever you do, you better expect to get a new rear, tranny and suspension. All the accessories from your LS1 should swap to the LS2 or LQ9 based shortblocks.
Or, an even cheaper route, build a 6.0l LQ9 or even your current LS1 with parts to handle N20 and run the same 300 shot. Drives nicely through town, doesn't kill the wallet and could put down high 9s low 10s with the flip of a switch. Whatever you do, you better expect to get a new rear, tranny and suspension. All the accessories from your LS1 should swap to the LS2 or LQ9 based shortblocks.
08-30-2006, 05:27 PM
#16
Originally Posted by Steve - Race Eng
The 97 98 blocks are fine bases for the Darton MID sleeves. I do them all the time.
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
The 97 98 blocks however do not have the cross over oil galley at the back. I wrote a program to machine the block to join the galleys together for improved oiling as in later blocks. There is minimal charge for this machining.
I can do the same modification on the iron LS blocks.
Steve
Last edited by ROCNDAV; 08-30-2006 at 07:21 PM.
08-30-2006, 05:32 PM
#17
Thanks for the clear up Steve. Wasn't really sure on that one. Getting his block MID'd and the Lunati kit would be a huge overkill. Depending on what he is wanting to do/spend, the 402 is the best bargain. However, if you want big cubes, the LS2 dry sleeve is almost to hard to pass up. It's almost $1k cheaper than the MID, comparing $2500 to $3500 (prices I was quoted during my build). jconiers, the best thing to do would be to post up what your looking to achieve, and then we could help from there. Everyone can tell you to build a monster, but there's no need if that's not what your looking for.
08-31-2006, 09:49 AM
#18
Like some say above, go with an LS2 block. Pair that with the right heads and bolt-ons and 500+ is easily attainable. Lunati make some DAMN good products and unless you have more money than God I would rec. going with Eagle or any other compairable. There are a lot of LS2 shortblocks out there, just find a package you like thats in your price range, and make sure you have ALL of the supporting mods needed to efficiently make that thing put down some power.