IIRC the LA 360 FTH was 252/260/112 or 111. It works great in a 318.
I think the fastest Zero to .050ramps are on the Solid mechanicals. This allows you to run a cam up to two sizes bigger , without the cylinder pressure loss, of a FTHydraulic of similar .050 timing.
For instance;
Take the ever popular 268/276/110FTH that might have
[email protected] in a low compression 318LA, the cylinder pressure might fall to 125@96VP..
Same 223@ .050 but a Solid, might be a 261 to as little as 252 advertised. At 252*, the results might be 133@ 108VP.
108/96~plus 12.5% improvement in low rpm performance. And 133/125~plus 6.4% improvement in cylinder pressure. In an 8/1 engine ....at best, this is very significant. And a VP of 96 is particularly weak..
The point is; a hydraulic roller with same .050 as a hydraulic FT, may put more area under the curve but may take 8 or 10 more degrees to get the .050s.And that sucks on the bottom end.
But If they are both compared from advertised, the FTH will hit the .050s about 8* sooner, and may actually edge out the roller for a fatter area under the curve.
And a mechanical FT should be a winner big time against a hydraulic roller, when compared at say .008 tappet lift.
So all in all, IMO, the only advantages to a roller, in my mind, are the near zero likelihood of flatting lobes, and the slightly less friction to drive them.But that is offset some with worry that the needles could all end up scattered throughout your engine.
_____________________________________________
Since my FTH has gone 100,000 now, with just the regular addition of ZDDP, I'll stick with the FTs. And I really like my 230* cam; but the 276/286/110 is a heavy penalty in the fuel consumption arena. The same .050s could get me a solid of 260/267, and if I tighten it up to 106, that would get me a power-extraction event of 118.5... versus the 105 I have now... and that is a huge jump. Coupled with the loss of 10* of overlap, I'm hoping for mpgs in the mid 20USg again (with overdrive), with only a modest loss in hi-rpm power due to the loss of overlap; but with an accompanying increase in bottom end due to the earlier closing intake, and resultant ~10psi higher cylinder pressure.
Hmmmmmmmmmmmm, actually I think I'l go a lil bigger on that Solid..lol.