Trick Flow small block heads

I have mine bolted on.
They do need 12 point bolt heads or nuts for studs. It's tight!!
The spark plug openings are tight as well. I will have to turn down my Snap-on spark plug socket. I did find an old Craftsmen that barely worked. The bottom head studs from an Edlebrock kit work but the tops need to be longer. I did not measure. Heads are on the car now and waiting for push rods to show up. Ended up with 8.150 long. Hope to have the car at the track this weekend for some runs. Also regular ARP SB Mopar intake bolts do not work. The bolt bottoms out. Ended up with a 1.250" bolt. Also the Hughes rocker shaft studs are 1/4" too long as well.