Connecting Rod suggestions

Discussion in 'Technical' started by GrabberGT, Nov 7, 2007.

  1. GrabberGT

    GrabberGT Chris

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    Looking for light weight connecting rods to complete a 347 stroker kit. Its not going to be a huge torq monster just something that revs fast. Prob needs at most 600 hp capabilities after I spray it. I've seen Scat, Eagle, and Probe. What else is available. Probe is the lightest I have come accross so far at 530 grams and cost 309.00. They are 30 grams lighter than the others but cost ~40.00 more. Is that a significant reduction in weight for a rotating assembly?
     
  2. scooper77515

    scooper77515 No current projects.

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    Hate to take the negative route, but 600 hp from a 302 block:hmmm:

    Let us know how it works out...

    Most sources say they are safe to around 500 HP, so I know I am safe in my 250-300 range:rolleyes:
     
  3. CometGT1974

    CometGT1974 Gearhead

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    I ran the Probe Ultralight 4340 Rods and never had a problem, seemed to be a good product.
     
  4. Rick Book

    Rick Book Member

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    Chris,

    I too am interested in your take on getting 600 ponies without the block grenading.

    Is your block an R block by chance?

    Also, for the "rev fast", are you going with a neutral internal balanced setup? The reason I ask is because I have the internal balanced setup and it raps pretty quickly.

    'Sounds interesting.

    p.s. I'm using the Eagle H-beam rods (fwiw).
     
    Last edited: Nov 8, 2007
  5. GrabberGT

    GrabberGT Chris

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    So are you all suggesting that I engineer the weakest link in my motor to be the rods? I am building a motor that hopefully will put out 400 hp. Would you put 500hp or less rated rods in it. If I do and decide I want to add 100 shot of spray later on, I am already on the edge of what it can handle. Shouldnt I want it to be able to handle that and then some. I guess what I am saying is the reason for the 600hp rating is more of a comfort factor. Sure the block can handle only 500 or so. Then why are there so many 347's in our cars. Are HP ratings not a factor in a build. Am I over thinking this? What criteria should I be looking for in connecting rods?

    As far as fast revving goes. The motor will still be externally balanced. I'm just looking to optimize what I have (forged crank, Mahle pistons) and like the idea of a faster revving motor. In my mind I should therefore get the lightest weight rods I can for a reasonable price. Eagle I-beam rods weigh in at 565. Probe rods at 530. Will this 30g diff be something noticeable? Hawksracing has a set of titanium rods that weigh 365g but they are 2500.00. ;-)
     
    Last edited: Nov 8, 2007
  6. CometGT1974

    CometGT1974 Gearhead

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    What they are saying is, that it doesn't really matter what aftermarket rod you put in it.......when the block splits and its guts are laying all over the road/track, it really won't matter. A stock 302 block will not live a long happy life at 600hp.......ask me and several others how we know:D
     
  7. M.A.V.

    M.A.V. Yep,my real initials.

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  8. FredH

    FredH Member

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    If weight is your major concern and Ti is too expensive, have you considered aluminum?
     
  9. Rick Book

    Rick Book Member

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    Your previous post had me confused:

    I thought you were going for 600 horses on a stock block.

    Good luck either way (I still say that internally balancing will get you that quick-revving engine you want - at a cost though. $4000-$600 depending on where you go). I'd rather spend that on a nitrous kit and spray hell out of a stock block. :D

    Good luck.
     
  10. dkstuck

    dkstuck Member

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  11. mavman

    mavman Member

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    GRP.
     

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