340 T/A Head Adjustable Rocker Arms

Yes gentlemen, I misspoke. I did not interpret my casting numbers reference book correctly. My error, sorry. I want the adjustable rockers for the T/A heads (casting number 3418915, U or O head). Thank you Larry Shepard for your SB Mopar HP Book. The rocker PNs are: P3577076, P357077 and P357078.

I believe the J head had 1.88/1.60 valves. I want the 2.02/1.60s. The X head I bought recently is CN: 2531894-D (2.02/1.60), the 68-71 340 head. The adjustable rockers for the 273 or the 318 will probably work fine for these X heads. The pushrod holes and valve stems line up perfectly with a 6 bbl exhaust rocker.

But I still want a second T/A rocker set for right now; I have (2) sets of the T/A heads from the 70s.