Thread: 350 sbc wont start

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Originally Posted by firebird77clone

I just saw something....

You say both cam gears have their " dots at 12 "

Someone chime in on this one, but as my feeble brain is telling me that Chevy says the dots point to each other- cam at 6, crank at 12

Times 2... SBC I think is like you say crank at 12 and cam at 6, put the dots together.

Originally Posted by 34_40

Times 2... SBC I think is like you say crank at 12 and cam at 6, put the dots together.

Charlie & I were typing at the same time. The instructions I've seen for a Gen 1 SBC are install dot to dot to be sure of alignment, which puts #1 at TDC exhaust stroke, and #6 at TDC compression. When you're ready to drop the distributor in place rotate the crank 360 degrees, putting the crank dot back at 12, but the cam dot now at 6 (TYPO - SHOULD BE BOTH AT 12 - See below). #1 is now at TDC compression stroke. Use a big screw driver to set the oil pump slot just a bit early on rotation, and drop in the distributor ending with it pointing at #1 on the cap/body. Correct me if I'm wrong.