timimg chain installation

[Sixx101]

My question is, on a sbc does it matter if the timing mark on the cam gear is at 12 oclock in stead of at the 6 oclock positon? I know it maybe a simple matter to some of you guys but I was just wanting to know.

[red67camaro]

It doesn't matter as far as the cam or crank, but it will matter to the distributor. As long as the distributor is timed correctly, you are good to go.

[Vegas69]

I beg to differ.....your cam timing will be completely wrong and you just may bend your valves. Do it right. Cam at 6 and crank at 12

[buns]

Sixx101.......You just need to remember that with the cam at 6 o'clock and the crank at 12 o'clock, you are at TDC on the compression stroke of the number 6 cylinder, not number 1.

It's been that way since Day 1. You just need to bring number 1 to TDC on the compression stroke before installing the distributor.

[red67camaro]

Buns is correct. Crank at 12 o'clock and cam at 6 o'clock is TDC on #6 compression stroke. If you rotate the crank 360 degrees, the cam will rotate 180 degrees and both crank and cam marks will now be at 12 o'clock and #1 cyl will be ready to fire. As long as the crank mark is at 12 o'clock, the cam mark can be at either 6 or 12 o'clock as long as the distributor is timed correctly.

[Sixx101]

You guys are awesome... thanks