Maybe this wil help. It's some info from 1996 that I'd saved from the GN T Type mailing list.
Later,
Steve
Subject: RE: cam/lifters
From: Scott J Moody
[..The pn is 844kc792, I was told ...]
According to the FM/SP book, part # KC-792 is the cam and lifter kit for
the 84-87 Buick turbo and 89 TTA cars. It consists of the CS-792 cam,
HT-969 lifters, and 55-400 lube. Specs on the CS-792 (TRW TM788) cam
are: Lift = .410/.388", duration @.006" = 281/278 deg,
[email protected]"=
193/197 deg,
[email protected]" = 62 deg. Some other part #'s are:
Pushrods, hardened = RP3164
Pushrods, chrome-moly = RP3213R
Rocker arm, right = R-869
Rocker arm, left = R-870
Rocker arm shaft = RS-624
Rocker arm assy, complete, one head = RA1068
Rocker arm retainer, nylon = MR1829
TIming set, HD = 220-4111
Oil pump, high volume = 224-518V
Valve intake 1.71" = V-2117
Valve intake 1.77" = V-4001R
Valve, exhaust 1.50" = V-2116
Valve stem seal = MV-1911S
Scott Moody
[email protected]