What is max. bore .06 possible?
What is max. bore .06 possible?
Freshman User
Joined: Mar 2003
Posts: 41
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From: Wadesville IN
What is max. bore .06 possible?
I think thats the safe limit there, but you might find a machine shop that will do more then that. Anymore then that and the cylinders get to close together and that is added heat you dont want. I think i have heard of a .09 somewhere too. If you are going to just race and then shut it down it prolly will work but not on a daily driver or long trips.
Junior User
Joined: Mar 2003
Posts: 98
Likes: 0
What is max. bore .06 possible?
A couple of guys I pull with have went 120 thousanths. Kinda sacres me, but it can be done. I do not even like having a block bored 60 over, but that is just me. I guess it is just what you and your machinist are comfortble with. This is just my opinion.
Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
What is max. bore .06 possible?
.060 over won't be a problem. If you want the security of knowing exactly what the core looks like or intend on going to a
larger oversize, have the block sonic checked, about $75.
larger oversize, have the block sonic checked, about $75.
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Elder User
Joined: Nov 2002
Posts: 526
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From: Spokane WA
What is max. bore .06 possible?
Thanks for the info. Boy, if I could go .12 I might not have to do a sleeve. One shop told me if they put in a sleve($60) that it distorts the cylinder next to it?
Any one else seen more than .06?
Thanks
Greg
Any one else seen more than .06?
Thanks
Greg
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Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
What is max. bore .06 possible?
Susposively, some of the stock 429/460 blocks have gone as much as 4.600" (.240"), many have been bored to 4.500" (.140"). I have heard the early blocks can take this overbore but a sonic check is required.
I'd bore a stock block .060" and not blink an eye.
I'd bore a stock block .060" and not blink an eye.
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Elder User
Joined: Feb 2003
Posts: 760
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From: Boise, ID
What is max. bore .06 possible?
Originally posted by 74crwcb429hibPS4spd
One shop told me if they put in a sleve($60) that it distorts the cylinder next to it?
Thanks
Greg
One shop told me if they put in a sleve($60) that it distorts the cylinder next to it?
Thanks
Greg
If you consider the fact that the final bore has to be done AFTER the sleeve is put in, the cylinder distortion theory doesn't hold water as far as I can see. Any machinists want to chime in on this???
Mountain Pass
Joined: Apr 2003
Posts: 159
Likes: 0
From: Lincoln County
What is max. bore .06 possible?
I bored my 460 block .100 over, after a sonic check, and have driven thousands on the street since with no overheating issues (in Tucson). No long trips though, and no towing.
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