I have an bolt on only 2000z28
im going to start my build here shortly
I have set of prc 225 62cc head
yank 3800
built 4l60
323 gear
bbk long tubes ,bbk ssi intake
im worried about p/v clearance with these heads
im in touch with btr for a custom grind cam
your thoughts??

 

Sounds like a nice start. No clue at all on the possible cam specs?

 

not yet just send btr the cam sheet in today.
waitn to hear back. Anyone running these heads ? if so any p/v clearance issues? tsp told me no more then 239 on intake but wouldn't say any on lift..

 

Peak lift doesn't occur when the piston is near the valve, that is why they gave you a duration guideline not lift.

 

Since the 62cc chamber is from not milling the heads, you shouldn't have any issues with PTV unless you go with a huge cam.

Something in the mid 230s for intake and exhaust should be fine and LSA depends on where you want the power to be.

 

thanks gents

 

What size tire are you running? Reason I'm saying is if you going to stay all motor which it looks like based on the stall you mentioned, I would put 373's in the rear. And do you already have the bbk intake? I'd rather do a fast or a ls6 if your on a budget, than you could always sell your ls6 quicker to those guys on here when your ready for a fast.

 

With that combo I'd honestly stay around 230 duration. Titan4 would be a nice choice.......

http://store.cammotion.com/-named-cams

 

I went with the tsp tsunami cam make torque quicker
we ll see how she runs
ill keep u posted

 

any results yet? im going with a very similar set up