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  • Title: Marcos 66 GTO 389
  • Description: No description
  • Owner: Gallery Administrator

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The heads have been modified for our special valves. They are Swirl Polished, Undercut Stems, One Piece and have a special mixture of metal to create my formula for the Stainless Steel.

Marcos 66 GTO 389

  • Here are our Rods. Yes these are made to our far more stringent specifications that others. We have no time for broken connecting rods and we sure have no time for failures of other peoples overseas made garbage.

    • Here are our Rods. Yes these are made to our far more string…
    • Views: 1098
    • By: Gallery Administrator

  • There are some suppliers that cannot be beat. They of course are making their items in AMERICA. Sealed Power is one of them. They bought out TRW and are continuing the Forged Piston Line for Pontiacs. These were hard to get.

    • There are some suppliers that cannot be beat. They of cours…
    • Views: 778
    • By: Gallery Administrator

  • You can see the inner side of the Forged Piston. In my opinion there are many other units out there that just cannot hold a candle to these units. Sure they are all different but for street use these rule.

    • You can see the inner side of the Forged Piston. In my opini…
    • Views: 821
    • By: Gallery Administrator

  • I will have to remember to take a picture of the pistons before we turn them. They need to be a bit lower in the bore to lower the compression. I have been doing this for years and Wedge Heads have to have it done this way.

    • I will have to remember to take a picture of the pistons bef…
    • Views: 602
    • By: Gallery Administrator

  • Here they are with the rods installed. We thermally install the connecting rods to ensure that the Piston Pin is securely located in the Connecting Rod. I feel that when the Connecting Rod Small End shrinks down on the pin it is more likely to stay put.

    • Here they are with the rods installed. We thermally install…
    • Views: 765
    • By: Gallery Administrator

  • Once done with the assembly they had better float like they are supposed to. If they do not perform then I press out the Pin in over $7500.00 worth of Piston Press, Fixture and tooling to make sure the Rod, Piston, and Pin are not damaged.

    • Once done with the assembly they had better float like they…
    • Views: 743
    • By: Gallery Administrator

  • I have yet to screw up on the Connecting Rod install though. It could be possible, I am not perfect but I screwed up about 1000 motors ago. Now I got a long running record.

    • I have yet to screw up on the Connecting Rod install though.…
    • Views: 675
    • By: Gallery Administrator

  • One more shot of the milled surface on the Forged Piston top. w those of you out there in Internet land might say, Hay the arrow is missing. I would say where are the Indians. You see there is a arrow on the bottom also.

    • One more shot of the milled surface on the Forged Piston top…
    • Views: 851
    • By: Gallery Administrator

  • There are Specialized Coating applied to the skirts of the Pistons. This is to stop them from Scuffing the Bore. Not to mention that I have yet to have a motor do this. Of course since we bore them so there is almost no clearance any little bit helps.

    • There are Specialized Coating applied to the skirts of the P…
    • Views: 1092
    • By: Gallery Administrator