Trevor @ Texas Speed & Perf.

iTrader: (3)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Terry Burger:
<strong> You don't need an iron block to get 396 cubic inches with the stock crank. <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yep, you're right Terry. You can either buy an expensive 4.125" stroke crank and pair it up with a 3.905" bore to get a 395.xx cid LS1, but we are not big fans of stroke over 4" in the LS1's. You could also take the resleeved block route with a 4.1" bore and 3.75" stroke. The cost would be considerably higher, and you'd have the wonderful worries of a leaking block. Our iron-block is guaranteed not to drop sleeves. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Trevor

Chicago Crew UnderBoss

iTrader: (1)

TREVOR,

Can you give me the specific reasons why you guys are not big fans of stroker cranks larger than 4.00 for LS1s.

THanks,

MTI 427 C5 Roadster

Chicago Crew UnderBoss

iTrader: (1)

TREVOR,

Can you give me the specific reasons why you guys are not big fans of stroker cranks larger than 4.00 for LS1s.

THanks,

MTI 427 C5 Roadster

Trevor @ Texas Speed & Perf.

iTrader: (3)

We are not big fans of going over 4" stroke because you do reach a point of diminishing returns. You gain piston speed and side-loading with the longer stroke, and we do not feel that it is worth the decreased longevity of the engine. You can make near identical power using a 4" stroke crank (holding camshaft and cylinder head selection constant).

There are plenty of guys out there using a 4.125" stroke crank with no problems and making nice power. We just choose not to go over 4" stroke.

Trevor

Terry Burger

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">
Yep, you're right Terry. You can either buy an expensive 4.125" stroke crank and pair it up with a 3.905" bore to get a 395.xx cid LS1, but we are not big fans of stroke over 4" in the LS1's. You could also take the resleeved block route with a 4.1" bore and 3.75" stroke. The cost would be considerably higher, and you'd have the wonderful worries of a leaking block. Our iron-block is guaranteed not to drop sleeves.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How about a 4.125" bore and 3.72 offset ground stock crank. Most alum resleves work fine and you save almost 100# off the front end. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Linear Velocity

iTrader: (1)

I agree with Terry on this one, you don't need an iron block to do a big bore, it's not worth the extra 100 lbs. I'm going with an LS6 aluminum block and a 4.125" bore and stock 3.622 stroke for a 388, no expensive darton sleeves. My block is guarateed not to leak or drop sleeves either <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> , AAP uses a stepped sleeve process that had been successful in every engine they've done <img border="0" alt="[worship]" title="" src="graemlins/gr_hail.gif" />

<small>[ February 26, 2003, 05:49 PM: Message edited by: Linear Velocity ]</small>

-Joseph-

iTrader: (12)

No one ever said a 4.060" bore was a big bore. The reason for the 6.0L block use is because of the cost, same reason the stock crank was kept and offset. The new GM 6.0L block and complete machining is well under $1000. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

The stepped sleeve process is nothing new. I have one of my own 5.7L blocks waiting to be resleeved at our machine shop - I just don't know what sleeves I want to use.

<small>[ February 26, 2003, 11:30 PM: Message edited by: -Joseph- ]</small>

Scott

I like the sound of this... would like to see more discussion concerning this Off-Set Ground 396.

Linear Velocity

iTrader: (1)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by -Joseph-:
<strong>
The stepped sleeve process is nothing new.</strong>
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Um...never said it was. It's just effective. <img border="0" alt="[pimp]" title="" src="graemlins/gr_pimp.gif" />

Chad00ws6

Originally posted by Joseph:
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Did someone say that Jason was going to break-in a engine?! LMFAO!!! that won't happen with him. He was trying to spray it when it was on the engine stand being assembled.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I can vouch for that....lol <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />

He drove mine with only about 10 miles on it if that and you could hear him romping on it about a mile from the house. <img border="0" alt="[driving]" title="" src="graemlins/gr_driving3.gif" />

jk....Jason you can drive it again if I ever come back down

Jason 98 TA

iTrader: (4)

We will definately offer the package with a aluminum block. We use MTI for all of our resleeved blocks <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> We've been discussing the use of resleeved blocks & will probably test one out before long <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> I'm game to build another one, but I'm kind of tired of the c5 being apart all the time. Don't worry though the next one will have a HUGE bore <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ February 28, 2003, 09:14 AM: Message edited by: Jason 98 TA ]</small>

MidniteLS1

Do you guys have any Dyno numbers yet?

-Joseph-

iTrader: (12)

We were planning on having it Dyno'd on Friday, but at about 3am Friday morning the clutch started slipping. Probably be about 2 weeks until we get the clutch fixed and find time to take it somewhere before the SBSO.