Originally Posted by vinniekq2
how about,vortec L31 cast iron heads are very good for moderate performance applications. Just so as to not make it look like vortec heads are just great heads.They have quite a few limitations.
Wording it that way implies that there are other production GEN 1/1E heads than the L31 Vortec heads.
If you want a better flowing GEN 1 head, you have to go to the aftermarket.
Lift limitations are fixed by springs/retainers.
They do require a dedicated intake.
If you want to take a production head, slap it on a shortblock with the goal of making the most power/torque, the head that will do the job is the Vortec L31head.
Not only are they great heads, GM never installed a better GEN 1 head on any vehicle they ever made, car or truck.