Steve - Race Eng

iTrader: (1)

Max. bore on the Darton Seal Tite dry sleeves is 4.190" in either LS2 or LS7 normally aspirated. If you are going to boost or run nitrous I would keep it smaller for added strength.

Darton will have MID sleeves shortly for the LS2 and LS7 blocks. They will go from 4.125" to 4.200". and handle strokes up to 4.250". One sleeve covers the entire range.

Steve

vert_fan

Steve, I have been following that the LS2/LS7 MID sleeves will be completed soon. How soon? Months?
Keep up the good work in the engineering for LS based engines.

Steve - Race Eng

iTrader: (1)

The LS2 LS7 MID were supposed to be finished last month. A problem with one of Darton's machining centers put the project back a bit. I have sets on order for LS7 blocks I have here to repair that are too badly cracked to repair with dry sleeves. I expect Darton will have the sleeves sometime this month.

Thanks for your interest,

Steve

red 454

STEAVE please forgive my ignorance but does that mean i can take my ls2 out to 454 safely now ?

Steve - Race Eng

iTrader: (1)

454 would be 4.185" bore x 4.125" stroke which is no problem with the Darton dry sleeves in the LS2 block.

Steve

red 454

is thear any one running this combo ?
how many miles would you expect to get between rebuilds on NA daily driver ?
what about oil burning issues?

Stang's Bane

iTrader: (22)

There are several 454's out there now. Most of them are LSX blocks, but a few of them are resleeved AL blocks.

Steve - Race Eng

iTrader: (1)

I have several running on the street with 4.125" stroke, working on two more at the moment. No oil burning problems.

I did an MID a couple of years ago with the shorter 5.675" sleeves. That engine has no oil burning problems either. That build was for Dutchess Camaro's Firebird which was written up in GM High Tech Performance.

The current LSx block has a shorter cylinder wall length. I'd be careful with this over 4" stroke for the street.

Steve

red 454

THANKS STEVE
talking to ERIK at the moment on price for a complete engine DO you also build engines or are you to busy sleeving them ?

Steve - Race Eng

iTrader: (1)

I do short blocks time permitting. Complete engines are a problem with the back log of blocks I have to do.

Steve

99blancoSS

iTrader: (115)

Currently Erik is building me a RED sleeved ls2 combination. It will have a 4.250" stroke and 4.125-.040 bore. final bore size not set in stone all depends on (what ever technical thing its dependant on..lol) thickness of something I'd imagine..hahaha.

I was originaly was looking for a 4" stroke with the biggest bore I could get. Spoke with Eric and he educated me on a few things and now I'm on the current path. Hopeing for 600+rwhp with torque to spare. 4000+ lb Camaro here.

TwnTrboCE

iTrader: (43)

Just to show the reliability and strenght in a resleeved block. When done correctly... Both cars in my sig run them.

ramairws6

iTrader: (33)

TwnTrbo..........those are both ERL blocks in your car not? Traver

njc.corp

yes-and no-depends on the goals-and the intended use-

Nick--

TwnTrboCE

iTrader: (43)

Yes, both cars run ERL's resleeved blocks. This year we'll be running there new 6 bolt versions. Which are Darton sleeved LS2 blocks with 2 added bolts per cylinder.

ramairws6

iTrader: (33)

Cool, kind've thought they were! I checked their blocks out at the Sema show and talked to one of their reps. I was very impressed with what they did with welding that little bridge or rail support, as some might call it, around each cylinder. I was even torn between this and the dry sleeve from RED. I went the cheaper route just because I am not planning to ever run that much power. Seemed like overkill for me!? But I can definately see it's a nice peice and should stand up to gobs of boost and power!! Traver

jcoker

iTrader: (17)

i am running one of scoggins L92 427s. its got about 3000 miles on it and its never used any oil that i can tell. it has trick flow 235s comp is 11.6. i got it on sale for the same price as there 402.