What to do now?
 

OK just got off phone with machine shop. I could not for the life of me remember what pistons I put in my 306 when I first put it together over 3 years ago. So I call and they tell me that I had Cast (hyper) Flat Top .030 over 86 style pistons. Now with my Gt-40 heads on the way and wanting to run a Trick Flow stage 1 cam. Im not sure if it will work or not.. Anyone have any idea how think the top's of the 86 pistons are. How much can I dish the pistons without worrying about cutting through the top???
Can I cut the pistons enough to run the stock size valves and the Trick flow Stage 1 cam?? Here are the cam specs:

Specifications:
* Advertised Duration: 275 intake/279 exhaust
* Duration at .050 in. lift: 221 intake/225 exhaust
* Gross valve lift: .499 in. intake/.510 in. exhaust
* Lobe Separation: 112 degrees
* RPM Range: 2,000 to 5,500

Any help is Greatly appreciated

Thanks
Bradley

Do yo remeber where you got the pistons from?? They can be flat tops but have valve reliefs that can fit the extra lift.

Yeah I called the place I got the pistons today. .gonna call em back Monday and talk to them again..maybe they will have valve reliefs? I hope the ydo.

Bradley

why do you use all these 86 parts? I believe you said you had 86 heads too, but on an 88?
Well the 86 pistons can be cut enough, but id just get those weak bastards outta there.:D