What was the fasrest zero to sixty general motors  production car of the sixty
I read somewhere that it was a 1963 pontiac catalina. Is this true and
if so what was the time.

I would have to think it was the 66 or 67 Corvette w/427.

"1967 Chevrolet Corvette 427.

435 horsies. fastest production car in the world when it was built.
fastest corvette built until 1991."

http://www.netshrine.com/vbulletin2/showthread.php?t=4357&goto=nextoldest

Gotta beg to differ. Don't believe the marketing departments. I was
there :) We beat Corvettes handily with both GTO's (preferably of the
three deuce variety) and in my opinion, the fastest unmodified
production monster, the Plymouth Road Runner!

Catalinas were not even in the game.

But perhaps someone can find more concrete data for you.

-=clouseau=-

"Any 427 Sting Ray was an incredible performer. With the short 4.11:1
gearset, Sports Car Graphic's example did 0-60 mph in a nearly
unbelievable 4.8 seconds and ran up to 140 mph. The modest 3.36:1 axle
made things only a bit less sensational; Car and Driver reported 0-60
in 5.4 seconds and a standing quarter-mile of 12.8 seconds at 112
mph."

http://www.histomobile.com/1/Chevrolet/1963/Corvette.htm?lan=1

"1963 Pontiac Catalina...

Performance: SD 421/410: 0-60 in 5.2 seconds, 1/4 mile in 13.7 seconds
@ 107 mph. Super Stock lightweight SD 421/410: 1/4 mile in low 12s at
more than 116 mph."

http://www.musclecarclub.com/musclecars/pontiac-catalina/pontiac-catalina-history.shtml

"What was the fasrest zero to sixty general motors  production car of the sixty
I read somewhere that it was a 1963 pontiac catalina. Is this true and
if so what was the time."

Fastest 0 to 60 was the 67 vette.  BUT the Shelby Cobra had them all beat!