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pros and cons ls block vs gsr block

Discussion in 'Engine Building' started by civiclxb16, May 10, 2005.

  1. civiclxb16

    civiclxb16 Senior Member

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    ok i was looking around and in search of a ls block or a gsr block, and i noticed that the ls block i can find for cheap like 100 to 300 bucks and for the gsr block i have found them for 500 bucks. but the ls block i would have to spend another 100 to 200 bucks for the lsvtec convertion kit. so i was wondering am i better off just buying a gsr block or get the ls block and do the convertion? and what are the pros and cons of getting the ls block, and what are the pros and cons of getting the gsr block!
     
  2. formby

    formby learning in progress

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    try to find a bare gsr block and buy an ls crank...knife edge the crank($$$) and then it will clear the oil squirters....then it becomes an ls in a gsr...the perfect frank motor....if i knew then what i know now i wouldve done it...
     
  3. civiclxb16

    civiclxb16 Senior Member

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    explain to me what that knife edge means? and what pistons do i use in there then?
     
  4. formby

    formby learning in progress

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    ls crank with ls rods

    and knife edge means the take material off the counter weights to make it turn faster like the flywheel. inturn the material removed lets the crank clear the OS
     
  5. pissedoffsol

    pissedoffsol RETIRED

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    gsr VS ls..

    ls has more stroke, weaker rods, lower compression pistons

    gsr has less stroke, more rev-happy, stronger rods, more compression, crank girdle, and oil squirters.

    Ls crank/rods im a gsr casting make the best of both worlds... but gsr pistons don't fit ls rods, so keep that in mind, and the crank will have to be machined, as stated, to clear the squiters. b16 pistons will fit ls rods though.
     
  6. brian11to1

    brian11to1 Senior Member

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    if they wont fit, can you get em machiend to fit LS rods? would putting a LS crank in a GSR require any odd machine work?
     
  7. pissedoffsol

    pissedoffsol RETIRED

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    yes, you can shot peen them to fit i beleive.

    as for everything else, other than the block girlde, i don't see there being anything that would need to be modified.
     
  8. civiclxb16

    civiclxb16 Senior Member

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    thanks man the way it looks it seems like getting a gsr block is going to be the way to go thanks man
     
  9. sohcslammer

    sohcslammer Senior Member

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    Yes. I have CTR pistons on aftermarket LS rods.
     
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