Shubeck Roller-X seems to be a superior Roller lifter design.
As for IA2 stuff, tune the "issue for some" into a FEATURE for many: allow lifter to bottom onto Lifter BOSS instead of Cam's Base-circle.
Could Include a Steel Collar, and keep it's position with a Lathed-Groove cut into lifter body, or a couple Match-machined Steel press-pins. I'd guess a .003" hover-off basecircle would be an ideal nominal...at cold. Customer determines where to Pin/Lathe the Postive-Stop collar onto the Lifter's upper body.
IA2 Upper Boss Pad then becomes a toleranced Machining step. Setup a cutter for single-pass for each bank.
Shubeck Roller-X wants an alignment groove along the BOSS..real nice if it's practical to be cutting such vertical grooves into the Boss ID x 16places.
HIS
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95 Towncar that needs more TQ.
Sold 2023: 12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct
Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct
Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct
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