My crank hub has been off several times, and I can't go by the marker on that.

I'm using shoebox's page as a guide:

http://shbox.com/1/4th_gen_tech2.html#adjust_valves

My problem is, there are 2 valves per cylinder, which one is the intake and which one is the exhaust???

THanks.

 

Cylinder Heads pn LT1's have valves arranged ExIn InEx ExIn InEx
ie extreme 2 valves & centre 2 valves are exhausts
HTH
Mitch

 

See where the valves line up with the exhaust ports (manifold) those are the exhaust ports, the rest are intakes.

 

Use method 3, then the hub doesn't matter. You watch the pushrod/lifter/spring movements.

 

thanks for the replies guys, i'm on top of it now

 

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