I am sure you all are beat to death with the cam ???. I have cam across this cam, would like to know what grind it is.. LSk 223 lobe is 636 112lsa. I am aware that bigger isn't always better, but can i get away with this in a lq4 with mild stock heads .20 mill. Would I get more hp out of this then the tsp 224 581.. My plans down the road are cnc ls6 heads.. So could this work in the 6 with a 3k stall, with out doing anymods to pistons or such.. Also how much further up the powerband is that going to put me over a 581 lift. Thanks to the folks who put the knowledge in for this ???

Thanks JOhn

 

You don't need that much lift with stock heads,but the cam should work,if you run valve springs rated for that much lift,installed correctly and checked for coil bind.

 

theres a point where your heads will flow the same at something like .580 lift as they would at .700 lift law of diminishing returns. with that much like you might want to check into piston to valve clearance but im not sure of the duration

 

You may run into p to v clearance issues with that. Just go with teh 581 and there will be no worries.

 

Lift doesn't affect PTV clearance duration does.

 

wouldnt it be lift and duration because it something pushes the valves open .050 inches more than another one. if it pushes it open more it sticks into the CC more. seems liek if you had something with .280 lift you wouldnt have any PTV issues because the lift was so small. wouldnt you run into problems on the other end of hte scale

 

i would go for the taller lift that way if you ever get beter flowing heads that could use the lift you would be set and wouldn't need another cam. there a guy on the tech that went with a cam close to that but went with a 110 lsa and made tons of torque down low. he had like over 300ftlb of torque at like 3000 rpm. his dcr was 8.8:1 i think. the search wont work right now but the thread was "torque coming out of my ears" by patrick g search it and check it out was a great thread i learned alittle.
and that short of a duration it would be ok with that lift.

 

https://ls1tech.com/forums/showthread.php?t=481382 found it and its over 325 at 2500 rpm. thats good low end grunt right there.

 

I'd pass on that cam. I agree with what Whitt said, it's a bit much for all but the bigger heads/valves in larger cube engines (over 400 c.i). I'd image it eats valve springs pretty quick as well, on a D/D anyway.

 

in that thread i posted up the guy said that those lobes weren't much harder on the springs as the xer lobes. as long as the springs were shimed properly.