Best block for 427 build
Originally Posted by LILS
So you are saying that you can also install MID liners in LS7 blocks, not just LS2? Would that allow for a 4.200" bore in an LS7?
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
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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
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
Thanks for your interest,
Steve
Originally Posted by 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.
Keep up the good work in the engineering for LS based engines.
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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
Launching!
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From: CAIRNS QLD AUST
Originally Posted by Steve - Race Eng
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
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
454 454 would be 4.185" bore x 4.125" stroke which is no problem with the Darton dry sleeves in the LS2 block.
Steve
Steve
Originally Posted by red 454
STEAVE please forgive my ignorance but does that mean i can take my ls2 out to 454 safely now ?
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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
Launching!
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From: CAIRNS QLD AUST
454 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
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
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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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From: CAIRNS QLD AUST
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
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
talking to ERIK at the moment on price for a complete engine DO you also build engines or are you to busy sleeving them ?
Engines I do short blocks time permitting. Complete engines are a problem with the back log of blocks I have to do.
Steve
Steve
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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
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.
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.
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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
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.
