Going with 441 LS7 build. Anyone done this, please leave advice or opinions.
#25
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Rhoads Lifters. I used these many years ago and they worked as advertised. The reason I got these is, based on my previous experience with them, I should gain a few PSI of vacuum back, better idling on the big cam and more low-end torque, even with bigger cam (not that I should need the torque part with these cubes) :
![](https://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/430081_10150634944822915_765782914_10876224_2120332450_n.jpg)
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#35
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Sorry, no.
When you said stock, I thought you meant, like I was just supercharging a stock engine from a corvette. The crank, pistons, etc., the internals, are forged and built with FI in mind. The sodium-filled valves have been replaced. That type of thing.
I repeatedly get engine builders tell me this configuration would be good to about 15 PSI. I expect to run between 7 and 10 PSI, maybe.
When you said stock, I thought you meant, like I was just supercharging a stock engine from a corvette. The crank, pistons, etc., the internals, are forged and built with FI in mind. The sodium-filled valves have been replaced. That type of thing.
I repeatedly get engine builders tell me this configuration would be good to about 15 PSI. I expect to run between 7 and 10 PSI, maybe.
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IMO the weakness of the LS7 blocks are exaggerated. I don't dispute the other blocks are stronger. A local guy (LS2Formula) who now has the twin turbo running 7.7s in the forced induction section was running 7s on nitros w/ an ls7 block. He sold the motor with no issues. There was a guy at the last track rental running over 160 mph in a turbo setup with an LS7 block. I definately wouldn't push it but it's not a piece of crap as some seem to believe.
#38
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Good question, mebuildit. I already have a very expensive forged crank from my 422 Iron block build. I'm re-using that. The Superdamper has other assets associated with it besides the ability to pin the crank with it.
If I had to buy another crank, I would have gotten one with the stock stroke.
#39
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Increased stroke would make this bolt hit the block
![](https://sphotos.xx.fbcdn.net/hphotos-prn1/554674_10150997059277915_497175130_n.jpg)
Block has been notched to add clearance for rotation of the longer stroke crank (allowing the bolt heads to clear the block)
![](https://sphotos.xx.fbcdn.net/hphotos-prn1/554674_10150997059277915_497175130_n.jpg)
Block has been notched to add clearance for rotation of the longer stroke crank (allowing the bolt heads to clear the block)
![](https://sphotos.xx.fbcdn.net/hphotos-snc6/179424_10150997059352915_195145998_n.jpg)