| | | quote | Originally posted by 30+mpg:
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This one is mine. It is a duke block, but the head, crank, rods, valves, cam and pistons are all Superduty. The turbo was running about 5-7 lbs. It scooted REALLY well, but I didnt push it very hard because it was dumping too much fuel and wasn't running right. I took off the turbo and have been running it without the turbo and with a holly TB instead of the pro injection it had when I got it just for moving the car around to stretch its legs occasionally.
My understanding is that even with beefier internals, stock duke blocks are way too thin and have a habit of breaking apart at the deck under boost for too long, or your main caps break apart. I would just drive it until it fell apart if it weren't for the fact that I do not want to hurt the SD internals.
I have a spare Superduty block, head and some SD interal parts that I plan to put together one of these days when I have the spare time and money.
My prediction is that with stock internals and block under boost, the first thing you will break (if you don't blow the head gasket first) is you will collapse your pistons, or your rods will twist and snap in the middle /skinniest part of the rod. If for some reason the pistons, gasket, and rods don't break, count on your main caps or deck giving out on you.
I have had my SD block beside a stock block before and the differences are VERY noticeable. You look at the stock block and say to yourself "How does this thing run at all...
[This message has been edited by FieroMonkey (edited 09-18-2007).]
iam 30 but married with children that rises my effective biological age dramatically
