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  • Title: Bobs YS 400
  • Description: No description
  • Owner: Gallery Administrator

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IMAG0897

Bobs YS 400

  • Now after Steel Shot and the last step in cleaning I begin to Grind and Contour the Side Beams.

    • Now after Steel Shot and the last step in cleaning I begin t…
    • Views: 986
    • By: Gallery Administrator

  • Here it is quite obvious that they are finally at the state of cleanliness that they need to be. You can see the new ARP Rod Bolts Installed. They have just come off the Sunnen Rod Machine

    • Here it is quite obvious that they are finally at the state…
    • Views: 891
    • By: Gallery Administrator

  • If you look closely you can see the small hole between the side parting lines of the upper rod and lower cap. That hole directs oil to the side of the cylinder and the bottom of the crankshaft. GM determined that it was on no use and discontinued it'...

    • If you look closely you can see the small hole between the s…
    • Views: 702
    • By: Gallery Administrator

  • Now you can see the final surface that I strive for . I take each rod and weight it first. Once I find the lightest Rod I begin to take as little metal off as possible. Once done with it the "Match Weight " is determined for the other seven rods.

    • Now you can see the final surface that I strive for . I tak…
    • Views: 795
    • By: Gallery Administrator

  • It is the job of the Connecting Rod to tell me what metal to remove so that I can expose the best possible surface. You must hold each Rod and await for instructions before removing metal.

    • It is the job of the Connecting Rod to tell me what metal to…
    • Views: 797
    • By: Gallery Administrator

  • Even after matchweighting the Rods in the Polishing Phase the balancing also removes metal. You will notice some small witness marks on the rod nuts. These are just that. They do not weaken the nut whatsoever and would not effect balanced if switche...

    • Even after matchweighting the Rods in the Polishing Phase th…
    • Views: 834
    • By: Gallery Administrator

  • Here is the backside of the Pistons. I utilize a special piston in these 400 Tri Power Engines. It happens to be made just like the 73 to 74 455 Super Duty Piston. Nice forged Aluminum.

    • Here is the backside of the Pistons. I utilize a special pi…
    • Views: 835
    • By: Gallery Administrator

  • If you pay particular attention to the side of the piston top you will notice my Bevel cut to reduce compresion. Why take the metal off the outer edge? To increase flow into the shrouded area in the cylinder and to decrease compression.

    • If you pay particular attention to the side of the piston to…
    • Views: 848
    • By: Gallery Administrator

  • Why what is that? Looks like a Gaggle of pistons and connecting Rods. They sure look happy don't they. Must admit they were a nice set.

    • Why what is that? Looks like a Gaggle of pistons and connec…
    • Views: 856
    • By: Gallery Administrator