383 or 388
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
The actual lifter itself might go to 8000 but the issue you run into with hydraulic roller lifters and extreme RPM are the spring pressures involved to avoid valve float. Even with the lightest titanium valves, retainers, and locks you will not be able to shave the seat pressure enough to avoid collapsing the lifter. Hence why all engines that consistently reach 8000+ run a solid lifter set up.
Melting Slicks
Joined: May 2007
Posts: 2,382
Likes: 2
From: Kathleen FL
My 383 cost just under 3k and 3k was my budget. Eagle rotating assy off eBay, + my own labor + shop tools + instruction manual and that's pretty much it. Hundreds of passes already and it is still ok!
Drifting
Joined: Jan 2006
Posts: 1,740
Likes: 2
From: Winchester Virginia
The actual lifter itself might go to 8000 but the issue you run into with hydraulic roller lifters and extreme RPM are the spring pressures involved to avoid valve float. Even with the lightest titanium valves, retainers, and locks you will not be able to shave the seat pressure enough to avoid collapsing the lifter. Hence why all engines that consistently reach 8000+ run a solid lifter set up.
N
Burning Brakes
Joined: Sep 2005
Posts: 993
Likes: 3
From: Iowa
That's funny; the only thing that we build to turn 10K is drag race engines that don't run that for very long. I hate to break it to you, but the no holds barred racing of small block Chevy engines is still sprint car racing. That series is the reason you have off set rocker shafts, aftermarket tall deck aluminum blocks, the highest flowing cylinder heads, so on and so on. I can tell you this; a 410 sprint engine that makes in excess of 850 hp using a 2.200 titanium intake valve will NOT hit 10,000 rpm without over 800lbs open pressure!
Maybe your little Cadillac engine has small enough valves that it can get away with it, or they are running a stiff rev kit to offset some of the mass (we run those too), either way, try hitting the 1000 hp NA mark reliably (with a small block) and see what you can do with a hydraulic lifter...
And also, to imply that a $45,000+ engine that you have obviously never touched, has anything less than the best parts money can buy is rather ridiculous, but since I'm talking with an "everyday wanna be motor-head" I can see why you don't know much except for what the add told you.
Maybe your little Cadillac engine has small enough valves that it can get away with it, or they are running a stiff rev kit to offset some of the mass (we run those too), either way, try hitting the 1000 hp NA mark reliably (with a small block) and see what you can do with a hydraulic lifter...
And also, to imply that a $45,000+ engine that you have obviously never touched, has anything less than the best parts money can buy is rather ridiculous, but since I'm talking with an "everyday wanna be motor-head" I can see why you don't know much except for what the add told you.
Last edited by Deakins; Jun 12, 2008 at 10:52 AM.
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