383 Stroker, fresh build, rocker stud broken...

[GASoline71]

What's the lift on the cam, and are the springs rated to handle it? That could have been from coil bind. Also it appears the pushrod guide is gouging the pushrod as well. A girdle will help more at high RPM to stabilize the studs from flexing.

Gary

[toolboxchev]

What else was going on when this happened? High RPM? Pulling a hill? No load condition in neutral? 700 miles on those components are not even broke in. Some opinions may vary, but yes those details may matter, tremendously.

Odd things happen in the begining, for example when I did a top end on my truck, after the intial oil was dropped I went for a rip down the freeway. Added 10 gallons of AV gas to some premium at 115 to see if it would hold.

Sure did, except for one thing. The exhaust manifold gaskets, burned and blew them right out!

[57NAPCO]

Originally Posted by toolboxchev

What else was going on when this happened? High RPM? Pulling a hill? No load condition in neutral? 700 miles on those components are not even broke in. Some opinions may vary, but yes those details may matter, tremendously.

Odd things happen in the begining, for example when I did a top end on my truck, after the intial oil was dropped I went for a rip down the freeway. Added 10 gallons of AV gas to some premium at 115 to see if it would hold.

Sure did, except for one thing. The exhaust manifold gaskets, burned and blew them right out!

Spinin’ down the road around 75 MPH, for about 3 hours. Flat ground for the most part.

[57NAPCO]

Originally Posted by GASoline71

What's the lift on the cam, and are the springs rated to handle it? That could have been from coil bind. Also it appears the pushrod guide is gouging the pushrod as well. A girdle will help more at high RPM to stabilize the studs from flexing.

Gary

I’ll get the info on the cam and springs.
Thanks