max bore on a 6.0 iron block
07-05-2006, 04:40 AM
#2
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4.03 is normal, 4.06 is good only with a sonic check. I have seen one company make a 4.08" iron block but that was probably pretty rare that is sonic checked good.
I would just go 4.03" and leave plenty of meat on the walls if you're going to make any serious power.
Nate
I would just go 4.03" and leave plenty of meat on the walls if you're going to make any serious power.
Nate
07-05-2006, 08:14 AM
#3
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as stated max is around .060 over if the block sonic checks good; and as also stated .030 over is the norm, if you wanted something differnt do a .040 or .050. it does not really get you much but you would be a little different.
07-08-2006, 09:59 PM
#5
so tell me this, stock crank X 6.100 rod X 4.030 bore = WHAT?
also what do you think about these rods
http://cgi.ebay.com/ebaymotors/New-4...spagenameZWD1V
or
http://cgi.ebay.com/ebaymotors/Ultra...spagenameZWD1V
I will be using arp L19 rod bolts with the rods, oh yeah turbochared
just to let you know im looking for like 800+ hp " low 9's" is it possible with these rods
also what do you think about these rods
http://cgi.ebay.com/ebaymotors/New-4...spagenameZWD1V
or
http://cgi.ebay.com/ebaymotors/Ultra...spagenameZWD1V
I will be using arp L19 rod bolts with the rods, oh yeah turbochared
just to let you know im looking for like 800+ hp " low 9's" is it possible with these rods
Last edited by bumpin_records; 07-08-2006 at 10:09 PM.
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07-09-2006, 04:20 AM
#10
Honestly cant recommend anything as i dont know LS1's that well yet im still too much of a newb to recommend anything, but i know a 4.030 bore and the stock crank is a 370. Ive thought about building that combo. Rod length wont effect the cubes at all. The different lengths can help with taking pressure off the cylinder walls some /(longer rods) but there is another downside to it that im forgetting right now. Theres alotta threads about the connecting rod length debate.
07-09-2006, 11:34 PM
#13
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i don't think the .06 rule applies to the Gen 3 engines at all. i did my 5.3 L .120 over with no problems at all. the walls are pretty thick still as in i could have done way more. i would say its the machine shop guy and your call. the iron block gen 3 have walls that are thick almost syammised, but with 4.40" bore spacing and a bore of 4"...you do the math
07-09-2006, 11:36 PM
#14
Not the case, for example, with LS1's as they can only be bored over about .010. The LQ9 block can only be bored .060 safely with a sonic test to make absolutely sure it is fine. Anything more than that is not safe and would require sleeving.
