I just read through this thread
Would only buy from Hughes or Indy unless they were the sole source
HAve used lots of Engle with no more than the normal problems- mostly when pushing the envelope
As far as Howards and that kind of lobe I'd run dual springs set up light and break in on the outer
also I grind flats on the sides of hyd lifters similar to the ones sold by Rhodes (howards has them for some lifters) and this kind of flat was stock on 229 chevy v6 and some buicks
have not tried edm for hyd but would try
The .904 designed lobes will out performance the universal grinds
AS for the "Mopar grind" for HR no such think afik
First all HR retrofit kits are made by the same vendor AFIK let me know if any others
All have the small chevy size roller
A mopar HR could have the same base circle as a BBC but I do not know of any that do
In fact it's worse- many use masters that would work on Buick base circle or one that would work in a stroker chevy
We just do not have the numbers for customized grind lists- but that could change\- see below
Mopars also benefit from a larger lifter wheel .810-.815 no reason to use the smaller chevy sized wheel
the small wheel increases side loading...so at least get mopar sized rollers
Mke Jones inverse flank masters demonstraably outperform flat flank profiles solid or HR
One way to dial in your cam is to use a program like Controlled Induction software and generate your custom lift curve then take it to a grinder with CNC grinder and get your optimized cam solid, hyd, roller, hyd roller
you could also get away from the "most lift" dick comparison and roll the nose over so not pointy and limit the spring needed- and ensure the valve close is non bounce
happy new years
The last small block chrysler roller cam I ordered from Comp I ordered BBC base circle size. I am not sure that it matters with a roller. I think the wheel diameter is the pertinent dimension. Comp has different prefixes that you add to the lobe number for different roller diameters. I am talking about custom, I am not sure about shelf grinds.
I have purchased a lot of parts from Hughes. I did have some bad parts from time to time. They always took care of the issues. Sometimes going above and beyond. Like sending premium gaskets to make repairs, overnight shipping ect.
Then I called one day to inquire about a cam. That's when things went south. I had Dave on the phone and we were discussing my camshaft needs when I asked him why they don't list advertised duration numbers. He said "nothing matters that happens below .050" lift." I said I disagree. He said "your wrong, all that matters is the @.050 number."
I said "Dave, the engine can't build compression until the valve is seated, not to mention the importance of overlap. By your logic I could crank my adjusters down to hang the valve open .030-.040" and it wouldn't matter, right? We both know it wouldn't start, much less run"
He hung up on me. I haven't ordered from them since.
