torque or angle torque

[wellcraftpower]

5.7 vortec heads , my torque spec sheet gives 2 different ways to torque with angle torquing being prefered. I don't have that wrench, is it necessary.

 

[Scott Danforth]

TTY bolts are one time use and you torque them, then crank them to a specific angle.

 

[ESGWheel]

Tool is fairly simple and inexpensive. About $10 fm AZ, link.

 

[kenny nunez]

All the big box auto stores have them.

 

[kd4pbs]

I have often used a digital angle gauge from Hazard Frought that I had purchased years ago...

https://www.harborfreight.com/digital-angle-gauge-63615.html

Can be used for so much more than just the ones made for that job.GM never published a torque spec for the Vortec, from what I have determined - just the initial torque spec plus the degrees from that.