Anyone send their block to Darton for sleeving?
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They tell me they guarantee it, have the latest technology, do it for MTI and lingenfelter among others, and will do the finish work.
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MTI has the necessary equipment and expertise to build a Darton Sleeved Block. In fact, that's the only type of block that goes into their big cube engine packages (427, etc.)
They buy the sleeves from Darton but do all the machining, prep work and assembly in house.
They buy the sleeves from Darton but do all the machining, prep work and assembly in house.
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Originally Posted by SAM98WS6
They tell me they guarantee it, have the latest technology, do it for MTI and lingenfelter among others, and will do the finish work.
Both MTI and Lingenfelter do their own installs on Rottler equipment. I do installs directly for many of the other sponsors on this site and other tuner shops, and members of LS1TECH.
I use a precision industrial CNC milling machine that has coolant capability to keep the work piece, block, temperature constant during the machining process. Coolant is a critical component of the machining process that can not be over stressed since tolerances and finish cannot be held to the +- half thousandth required without coolant. In fact I now market CNC machines and stress relief machines at very competitive pricing, including training, and fixturing to shops that are interested in doing the work correctly. There will shortly be a fully equipped installation facility in the Atlanta area using my equipment and training.
As far as guarantee. I guarantee that the machine work and installation was done correctly whether you deal directly with me or through Darton. Sleeves themselves are guaranteed by Darton to be free from defects. This guarantee covers leaks or sleeve dropping though sleeve dropping is not an issue with the MID wet sleeve. Guarantee does not cover anything else including damage to the engine from overheating, detonation, improper honing, incorrect coolant, dropped valves, engine blow up, etc.
I do finish work, and assembly time permitting or will find someone competent in my area to do this if I do not have time. This time of the year I am pretty busy machining blocks and doing engine development work, special projects for the upcoming racing season.
Steve Demirjian
Race Engine Development
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Originally Posted by masterdill
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Yeah, it'd be nice if it'd come down a little. Might as well go C5R with that about of money involved.
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Originally Posted by Mike 01WS6
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Yeah, it'd be nice if it'd come down a little. Might as well go C5R with that about of money involved.
If one adds up the cost of machine work to install the sleeves, finish boring, honing, main studs, align honing and stress relief (brand new blocks only) one arrives at a price less than half that of a C5R. Keep in mind that a new C5R block needs to be honed to size as well.
The Darton MID block if done correctly is substantially stronger in the cylinder wall area than a C5R. Another plus is better cooling with the MID sleeves. The only other difference would be the billet caps and main studs on the C5R vs. the powder metal on the standard block. Pro Gram sells replacement steel caps that one can fit to a standard block but this is unnecessary for most builds. I recommend fitting studs on the mains of any block I do here, Ls1 or otherwise for the more even clamping and less distortion of the block they provide.
Steve Demirjian
Race Engine Development
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Originally Posted by DG Gordon
So how much does one cost?
With core (your block) - $2,300
Without core - $3,000
These prices are without shipping.
I have done about six blocks with Steve. He will definitely be the one that does the work on any block coming out of my shop as he is just a few miles away.
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Originally Posted by Steve - Race Eng
have held the line on pricing.
If one adds up the cost of machine work to install the sleeves, finish boring, honing, main studs, align honing and stress relief (brand new blocks only) one arrives at a price less than half that of a C5R. Keep in mind that a new C5R block needs to be honed to size as well.
If one adds up the cost of machine work to install the sleeves, finish boring, honing, main studs, align honing and stress relief (brand new blocks only) one arrives at a price less than half that of a C5R. Keep in mind that a new C5R block needs to be honed to size as well.
In other words building a resleeve Super Stroker may only cost ~$2000 or so more than doing a stroker. The block for the stroker will need some of the same machine work the resleeve does.