ls7 rods
12-18-2007, 01:33 PM
#21
I'd recommend not revving it to 8000rpm with that stroke.
12-18-2007, 10:25 PM
#23
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FWIW, there is a forum member that lives near by that runs katechs LS7 stroker cam/springs,etc....He has a stock bottom end milled heads by 30 thou ported intake , headers etc....
He regularly spins the car to 8K rpm. Doesn't mean everyone can and he knows he is running on borrowed time but he is used to 9K plus on his SB2. This is w/o the rod rebush, but after 1 year its still together. Last chassis dyno was just shy of 600hp. just real world info, stock ti valves, stock hollow SS exhaust valves and stock rods.
He regularly spins the car to 8K rpm. Doesn't mean everyone can and he knows he is running on borrowed time but he is used to 9K plus on his SB2. This is w/o the rod rebush, but after 1 year its still together. Last chassis dyno was just shy of 600hp. just real world info, stock ti valves, stock hollow SS exhaust valves and stock rods.
12-19-2007, 10:04 AM
#24
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yea, it will be a 427. with the engine combo I am going with, the peak power will probably end up being around the 7-8krpm mark...but I wont be spinning it any higher than need be.
bowtiguy - thanks for the info.
bowtiguy - thanks for the info.
12-19-2007, 11:02 AM
#26
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I will be going sheetmetal...Beck most likely. cam will probably be spec'd in the high 270's, maybe low 280's at .050, and high 700's lift most likely but this will all be determined with the headflow sheets.
Im not building a motor to say it rev's to 8k rpm, it will just be a byproduct of the parts I am choosing to make its power. If the peak power is lower, then its lower, but I want to build it strong and light...This will not be a daily driver by any means...maybe a couple trips to some car shows, and a few afternoon rips down the street, and then a few trips to the strip a year...
12-19-2007, 08:22 PM
#27
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From what I have been told the rods are good to 700 horsepower. Above that level your pushing the limits of the rod.
I know that replacing the 2 piece bushing with a 1 piece design is benificial.
As the RPM goes up the durability of the rods drop off.
It's a great rod for what it was designed. Maybe a little more.
Robin
I know that replacing the 2 piece bushing with a 1 piece design is benificial.
As the RPM goes up the durability of the rods drop off.
It's a great rod for what it was designed. Maybe a little more.
Robin
