3.0 overbore

Oreo · May 13, 2003, 02:05:07 PM

I am going to get my 3.0 rebuilt in my 4runner and figured I should get the cylinders overbored at the same time. Has anyone had experience with overboring their cylinders in a Toyota 3.0 v6? How much does it cost and where is a good place to get it done? Any info would be great.

BigMike · May 13, 2003, 08:13:29 PM

Are you refering to a standard 20 or 40 over or are you looking for a maximum bore?

mr4x42u · May 14, 2003, 04:29:08 AM

also remember you will get more power out of the engine from head improvements over bore..bore only does as mush good as the head lets in or out x amount of air and fuel through..so just bore is not always the awnser..

84runner · May 14, 2003, 05:43:06 AM

The average price is about $10 a hole give or take

Oreo · May 14, 2003, 05:58:38 PM

I'll probably go maximum bore. I will be getting ported and polished performance heads from D.O.A. Do you guys know where I can find a rebuild kit (other than D.O.A.) that comes with pistons/rings/crank made for an overbored 3.0? Also how much?

mr4x42u · May 15, 2003, 02:18:31 AM

I would check L C but would not go with anyone other then those L c,doa,or trd if available..

Remotruker · May 15, 2003, 10:46:12 AM

LC does not do anything v6 as far as i have ever seen....

79coyotefrg · May 20, 2003, 10:24:56 AM

D.O.A. is the only way for performance 3.0
althouhg i wouldn't do it , i would swap in a 3.4 :chug:

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3.0 overbore