Number 1 on a small block Chevy is very front cylinder on the drivers side. They are numbered from front to rear on drivers side 1-3-5-7 and on the passenger side front to rear 2-4-6-8. Firing order is 1-8-4-3-6-5-7-2
a 400 small block Chevy has a 4.125" bore.
the firing order for a small block Chevy 350 is 18436572
The deck is the surface to which you bolt the cylinder heads to.
A cylinder is misfiring.
4.125"
small block
160 foot lbs
65 FT. LBS.
65 ft lbs
If it is a V8 it is 65FT.- LBS.
torque specs 350 Chevy heads65 lbs
Drivers side, front to rear, 1,3,5,7. Pass side front to rear, 2,4,6,8.