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  1. R

    L31 or L31R Crate engine?

    Thanks for the input. Really helped me make my decision.
  2. R

    L31 or L31R Crate engine?

    I have a 98 Tahoe. It has cracked both heads within 30,000 miles of the first mishap. Decided to buy a crate motor & have narrowed it down to GM #12530282 or 12530283. I can't tell the difference except the 283 is a four bolt main. Is there a meaningful difference? Will the new motor have...
  3. R

    98 Tahoe Cat's bad?

    I did not ask the code number. Just had them fix it.
  4. R

    98 Tahoe Cat's bad?

    Severe random misfire dictated the tuenup. CSFI began dumping fuel. I have an infrared thermometer &I will check them. Thanks for the YouTube link.
  5. R

    98 Tahoe Cat's bad?

    The $2200 was a complete head job with one replacement. Major Tuneup - plugs @ $10 each, AC Delco wires, Coil, Cap, Rotor
  6. R

    98 Tahoe Cat's bad?

    Comedy of errors chain of events: Jan 2013 - CSPI went out, new MFPI installed $800 Jan 2013 - Cracked head dumping coolant into the exhaust - $2200 Dec 2013 - Threw code, major tuneup - $500 Threw another code en route home from repair shop. Returned to shop and the code read "right bank rich"...
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