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  1. R

    1UZ vs. 3UZ Heads (Worked ie: Ported)

    In a word, the porting numbers @ .350 are absolutly horrible on a 1UZ, are the 3uz any better?! I mean yes, In a forced induction your forcing the air through and even the most horrible heads can flow, but. I see the restriction causing huge back pressure, now maybe this is because there isn't...
  2. R

    1UZ vs. 3UZ Mix Block? (Searched)

    Ok, from what i've read and seen, the 1uz has allot more meat between the sleeves. So wouldn't the best of both worlds be a 98+ VVTi 1UZ with a set of 3UZ Heads Ported for a big forged induction setup? Also what does the oiling system look like for the 1UZ bottom vs. the 3uz. The 3UZ looks to...


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