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  • Title: Marcs 71 455HO
  • Description: No description
  • Owner: Gallery Administrator

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P1010029

Marcs 71 455HO

  • Of course I would not utilize a five wire HEI. In your case I would utilize a three wire HEI. This would be correct for 74 and up. I would remanufacture it for the camshaft and flow of the cylinder heads. You should be aware of the nice no nonsense...

    • Of course I would not utilize a five wire HEI. In your case…
    • Views: 941
    • By: Gallery Administrator

  • The selling points to the HEI are a bigger cap, less spark scatter, further apart spark plug wires, a non resistive 12 volts delivered to the coil pack on the cap. The coil is in the distributor cap.

    • The selling points to the HEI are a bigger cap, less spark s…
    • Views: 929
    • By: Gallery Administrator

  • Same type of distributor gear. One of the disadvantages is that they are hard to upgrade with a better coil. They are not correct for the engine. They are larger and take up more space. You will have to decide.

    • Same type of distributor gear. One of the disadvantages is…
    • Views: 800
    • By: Gallery Administrator

  • Most Pontiac motors had only two bolt main caps. These were the failure prone cap sets. You can see that they are all held on by two bolts. Just imagine that big four foot long piece of cast iron spinning around at 6000 rpm held in by 10 bolts.

    • Most Pontiac motors had only two bolt main caps. These were…
    • Views: 762
    • By: Gallery Administrator

  • Well in our case we will install our custom line of Steel Billet Four Bolt Main Caps. These are designed to make your motor all it can be. Not only are these a replacement for the failure prone factory four bolt main cast iron cap sets but they are a...

    • Well in our case we will install our custom line of Steel Bi…
    • Views: 788
    • By: Gallery Administrator

  • In this case your motor will be far more heavy duty than any 71 455 High Output. We will make the short block nearly bullet proof. In this case it will be a super engine for street ground pounding. It will respond really well from 1100 to 6500.

    • In this case your motor will be far more heavy duty than any…
    • Views: 669
    • By: Gallery Administrator

  • With these to keep your crankshaft in place and the Stainless Steel H Beam Connecting Rods to keep the cast iron block free from damage you can side step the clutch and reverse direction at any speed without worry.

    • With these to keep your crankshaft in place and the Stainles…
    • Views: 702
    • By: Gallery Administrator

  • On top of that it is pretty much the only way to go. I will never forget the day I was toolign along in my 72 455 High Output Formula. One of 23 cars made during the Norwood Strike that lasted 186 days. It started detonating. The rad lost water, suc...

    • On top of that it is pretty much the only way to go. I will…
    • Views: 688
    • By: Gallery Administrator

  • Now we move up to the intake manifold. This is a work of Pontiac Art. There is nothing to do. This was their work of Art. They could of spent some time on matching the ports to the heads. I must admit the port matching is very poor, but the intake...

    • Now we move up to the intake manifold. This is a work of Po…
    • Views: 773
    • By: Gallery Administrator