Magnum shortblock capability.
Why do you guys insist on shifting these engines at 7500 rpm? I shift my 422 at 7000 and it runs 9.40’s. My son shifts his stock crank 360 at 6800 and it runs 10.30’s. Why beat the piss out of them
Just trying to figure out where the limitations realy are on a subject that i find intresting. LA engines are getting harder to find and Magnums are still very available,and figure these things could be built oldschool as in add cam and compression to make up for lack of headflow and cubes,remember there was a time when strokercranks where just as rare as good heads and how things where built back then.
But since you ask i would like to start with that i believe that your 4" stroker is probably beating up the block harder at 7000rpm than a 3.31 crank engine will do at 7500rpm.
Would also like to add that i believe that if you took the topend and camshaft of your sons 360 and put it on a 318 it would probably be shifted somewhere around7200rpm due to how these smaller engines extend their productive rpmrange uppwards and how they tend to not nose over as hard as bigger engines does,unless valveshrouding gets realy bad so its not all irrelevant realy.
I respect your knowledge and both your car and your sons are very impressive but i hope you can think alitle outside the box here.
I think the number 7500 was just pulled out of the air as an extreme shift point. Not necessarily meaning that he’s going to go there.
You are correct as you often are!
I may take one of them things there at some point mostly trying to figure out what the real limitations realy are at present before i comit on a direction since i have not fully descided on where my next enginebuild is going and have no rush to get there but i have sort of got the impression that Magnums can take alitle more than the older LA stuff.
Stock stroke 360 on the dyno
Here's another build that should fit the bill...
Thats some usefull information,thank you!
