Help! New Motor willn't strat Why

[Marv02]

Happy Days

I found It why It bent the push Rods.
Like I said This is the First time I set up a motor with Trick Flow Heads And This also a First for Roller Rocker Arms.
I never Used A Push Rod Checker Before either I read all the Info you put out And tryed My best to understand how to use A Push Rod Checker.
Here A link that has Pictures which showed how use them Now I Know What was Screwed Up.
Setting Pushrods Length, Quick and Easy- Car Craft Magazine
First I put The Good Push rods back on #1 Cly And rechecked today And guess what The intake was Bend once Again.
After doing and seeing what to look for the push rods I have are 7.794 long good for the Exhaust but the Intake needs to be 7.700.
the roller tip was sitting on the lower part of the vavle stem not the center.
I dont know if the Heads or Cam why The Intake needs a shorter push rod but at least I know Why It is bending Push Rods Now.
The weird part of it it was not bending them when you turn it over by hand only with the starter motor.
eadHorse:

 

[Marv02]

I could have found out why there are 2 different size push rods needed for this engine.
After having a very bad day I went into the garage before I blew up at the family it nothing to do with them why I had a bad day but when I am in this mood I better off finding something to get my mind off the bad things.
Problem solving helps me get my mind off of the bad.
I started looking at the valve train once again trying to figure out why is there 2 different size push rods needed for this build so I straight edged the top of the valve stems once again thinking it would be the Intake valves that were giving me so much headaches.
But after shining the drop light beside the valve stems I found out the Exhaust valve stems are shorter.
They are .025 shorter by the feeler gauge.
That makes the problem child intake .025 taller than the stock height Valve stems this is why the Exhaust push rods measure out to 7.800 and the Intake measure out to be 7.700
I think the intake push rods just were binding things up at full open position and causing them to bend.

 

[Hot Rod Roy]

I think it was early cross-fire motors that fired twice each cycle, once at the end of compression stroke, and again at the end of exhaust stroke.

What kind of logic is this?? Any engine with a rotating distributor can only fire the cylinder that the distributor rotor is pointing at! There's no way it can fire at the top of the exhaust stroke!

(This can be done with a distributorless ignition, and many such engines have three ignition coils for 6 spark plugs, or four coils for 8 plugs.)

An easy way to check whether your number one cylinder is at TDC on the compression stroke is to twist the push rods with your fingers. If you're right, they'll be easy to twist. If you're 180 out, they will not twist!