i have a 90 blazer with a 400 small block out of a 74 impala , anyone wouldnt happen to know what the marks are when doing the chain and what should the timing be set at? also is # 1 on the drivers or passanger side. and while were at it i could use the firing order
timing on a 400 small block
Apr 04, 2006
3 Replies
The firing order is1-8-4-3-6-5-7-2 #1 is the first plug on the drivers side closest to the front. Before I tell you where to set the timing,is the motor stock?
Bill
it has 882 heads on it
Back then static timing was usually TDC on a lot of GM SB's. WHat you can run it at depends a lot on the gas octane and CR ratio you are running. If you are running more than stock compression, it will not like more than TDC with 87 octane. If you are stock compression you may do best with about 4 BTDC and if you use 91 octane or better, run about 8 to 10 BTDC or so.
----------------- The SnoMan
formatting link
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required