Guys,

Quick question, I have a set of LT1 AFR190's (they don't make these anymore) that was put on my motor back in '99 when the 383 was built. Anyone out there have the same heads and if so do you know what your (out of the box) chamber size is (58, 60, etc)? I can't find the documentation anymore and am not sure. These heads are the street version and not the larger port strip/offroad version. I will call AFR if needed but was hoping someone here would know so I could find out this weekend. Thanks for your help.

 

I thought AFR stamped all of there heads with the chamber size. Look on the end of the heads and see if they are stamped.

 

Yup, but the problem is they stamp it on the Pass-side head on the front and on the LT-1's that is where the huge accessory bracket for the PS pump and AC mounts. Impossible to see it without removing the whole bracket.

 

Take a mirror and see if the drivers side is stamped on the back

 

You got it I'll give that a shot when I can get back to the car in a week or so. FWIW - Here is a pic from the build up back in the day, and it looks like the stamping is 190 68. There is two pics (one zoom and the other reversed color to see better). Let me know what u think?