chevy iron head

[chris ok]

I do believe some of these vortec heads are getting hard to come by nowadays. There are other heads approved for the combo. I think they are RHS or Dart.

I stand corrected. the heads my frriend uses I thought he said were no longer available. sorry.

[SSDiv6]

Originally Posted by chris ok

I do believe some of these vortec heads are getting hard to come by nowadays. There are other heads approved for the combo. I think they are RHS or Dart.

25534445 is the part number for the bare cylinder head and 25534446 is for the whole assembly. They are still available from many vendors. I believe Michael mans tried all the other approved cylinder heads and he still made more power with the Bow Tie Vortec head.