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Early timing cover on OBDII engine

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  • Early timing cover on OBDII engine

    Will an early timing cover fit an OBDII engine without difficulties?

    I've heard of people doing an OBDII top end swap, so I would think it would work... just wanted to make sure.
    Current:
    \'87 Fiero GT: 12.86@106 - too dam many valves; ran 12.94 @ 112 on new engine, then broke a CV joint
    \'88 Fiero Formula: slow and attention getting; LZ8 followed by LLT power forthcoming
    \'88 BMW 325iX: The penultimate driving machine awaiting a heart transplant

    Gone, mostly forgotten:
    \'90 Pontiac 6000 SE AWD: slow but invisible

  • #2
    depends on which cover - one fill fit i believe (the rear) but the front one will interfier with the cam sensor

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    • #3
      you planning to use an OBD1 control system?

      the only phisical differences i saw with them side by side when i had 91 and 95 motor sitting next to each other on the floor was the 95 has the 2nd crank sensor on it, and the 91-93 uses the smaller CS130 alternator, so you'd have to use the older alternator as well.

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      • #4
        Originally posted by patgizz
        you planning to use an OBD1 control system?

        the only phisical differences i saw with them side by side when i had 91 and 95 motor sitting next to each other on the floor was the 95 has the 2nd crank sensor on it, and the 91-93 uses the smaller CS130 alternator, so you'd have to use the older alternator as well.
        We are talking about the timing covers on the front of the motors right? If so check OldSkool's thread about his OBD II swap. The covers are different for the different alts.


        1992 Lumina Z34 | 3.4L 207ci DOHC 60º V6; Getrag 284 |
        1994 Pontiac Grand Prix GTP | 3.4L 207ci DOHC 60º V6; Hydra-Matic 4T60E |

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        • #5
          Correct. Timing/front covers. NOT cam covers.

          Got a link to that thread?
          Current:
          \'87 Fiero GT: 12.86@106 - too dam many valves; ran 12.94 @ 112 on new engine, then broke a CV joint
          \'88 Fiero Formula: slow and attention getting; LZ8 followed by LLT power forthcoming
          \'88 BMW 325iX: The penultimate driving machine awaiting a heart transplant

          Gone, mostly forgotten:
          \'90 Pontiac 6000 SE AWD: slow but invisible

          Comment

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