Quote:
Originally Posted by gevette
I did not see mention of ring package for your build. There is definite power in a nice ring set. I am building a SD455 with custom pistons with 1.5 1.5 3 mm rings. Use a Napier second ring. The oil ring set will be the key. Lower tension equals horsepower but you can go too far. A stealth vacuum pump install would be worth power especially with the lower ring tension. The vacuum pump will also help keep the engine clean and leak free. I have used electric GMs that due a good job. GZ Motorsports also has a good belt driven pump that is street worthy.
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You are right, I mentioned that there is power to be found in the pistons on post 13. I think to OP will be happy with Eagle rods and some kind of hydraulic roller cam. An OF or JMO grind or something like that.
