Re: Ram Air IV versus 455 HO
I agree with Mike 1000% A well prepped 455SD is one hauling mean machine. The block even had Dry Sump racing provisions built in!
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Charley it depends on your budget, but I would recommend a Hyd roller possibly a Comp XR276HR or a XR288HR depending upon what you want to do with the car. A HYD roller with 230-240 degrees duration would make you very happy and it will idle just fine. 10 to 1 for pump gas would be fine. You need ROSS Pistons, they are the best and they are off the shelf most times. Throw in a set of aluminum rods if you have money to burn and that 455SD will rev like a small block.
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