In hospital and on pain meds so.. don't fire rounds if I missed something..
on your cam lift(limits)/coil bind issues..
and 4 heads on hand.. can't you cut the spring seats and /or add longer valve stems or both..
how much room you have before you run into the valve guide and spring retainer? before having to cut te guide down?
hope this makes sense..
You're right, Taz. Several options and I'll pursue that with the "good" engine. I have a set of smaller diameter wire springs (can't remember the pressures right now) so I'll probably use them. They allow 1.500 lift IIRC. We'll work it out when the time comes. Cool thing about this engine is that valves, springs, retainers, etc. all fit from a SBC.
I'll have to dig them out. There were two different cams that I ran depending on the motor du jour. Looking.......
WHO-HOO! More organized than I thought.
The solid lifter cam is:
220.9 int. @0.050 235.1 @0.050 valve lift 0.537 I 0.575 E 1.75:1 rocker ratio 12.8 overlap
Hydraulic cam:
214.2 I @0.050 212.1 E @ 0.050 valve lift 0.475 I 0.477 E 1.75 rocker ratio -7.0 overlap
I ran the hydraulic cam with a stock head and valve springs so it had to be pretty mild to keep the springs from bunching up. Limit on the 250 with these components is 0.500 and that's pushing it.
Both cams are from Delta in Washington State (Tacoma, IIRC)
Hope this helps. I still have the engines, cams, intake, etc. and may plot something with all these bits later.
These were ground for me and they just sent the actual tested numbers (I'm guessing a Spintron-type device). I have the whole printout from the tests but I posted the usual numbers. I'll copy the printouts for you and snail mail them if that would help.
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