Chevrolet Repair: question about replacing timing chain in 1987 Chevy Astro, chevy astro van, chevy astro

Question
I need to replace the timing chain in my 1987 Chevy Astro van.  Do I need to watch for any computer codes after I replace it?  If so, what codes do I need to watch for?

Answer
HI STEVE,YOU SHOULD HAVE NO PROBLEMS WITH ANY COMPUTER CODES ON A 87 ,BECAUSE THIS HAS A DISTRIBUTOR AND IS PRE OBD11..THIS MEANS NOT ALOT OF COMPUTER INFORMATION ON THIS..JUST LINE THE MARKS UP AS IT SAYS. CAM IS AT 6 O'CLOCK CRANK IS AT 12 O'CLOCK. SHOULD BE STRAIGHT FORWARD..GOOD LUCK TO YOU,,TOM..