Thread: ID-ing a 400 sbc blk
Threaded View
-
09-09-2014 11:17 AM #1
ID-ing a 400 sbc blk
Looking to buy a 1981 Chev pk. Guy says it has a 400
in it. What is the best way to ID this engine without
looking at numbers. Can it be done by looking at freeze plugs?
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance