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.

 

You can get them in a variety of sizes from 56 to 64cc's,or thereabouts. It should be stamped in the front of the heads. Then they could have been resurfaced. Only way to know is measure them.

 

I know for sure they were not resurfaced/or milled and all I have to go on is pics and with the poor quality I cannot make out the numbers. Unfortunately, they are on the pass-side front of the head and we all know that lies directly beneath teh acc braket and I cannot see it without removing the braket. Any ideas?

 

Like said before , you could get them in about any size (76,64 and 58 cc)

Mine measured 55cc

 

Mine are 68 cc, but as said they could vary.........

 

Looks like mine are around that as well as I found an old pic of the motor build up and it looks like a 68 stamped on their next to the 190. Here is the pic if you are interested:

Frontviewbeforemanifold3.jpg?t=1231857479

Frontviewbeforemanifold2.jpg?t=1231857514

 

ive never seen AFR's look like that before? wheres their cnc engraving?

 

The older ones are stamped,only the latest ones have been cnc marked.

 

Yup, these are from '99 and they don't even make the LT-1 AFR190's anymore. According to AFR they would be there or stamped on the deck face near the intake, only prob is that surface is not really viewable these days -