Some "Dynomite" Heads!

[Polo-1]

my chamber and valves stock.

round out the "flats" at the four valves edge ( for a 4" bore) and pick up 13 cfm.

I just think you might be doing more work for VERY small gain on the "left/right" clover.

I know I told what to do to pick up 7-10 HP on the exhaust side. I did not see it done in the pictures.... 1/8 wide flat spot.

Todd's stuff is out there (and it worked for him). Keep your build to tried and true. Much easier and cheaper, and you wont need a heavy mill or special pistons to get back compression.

[RHanselman]

Originally Posted by Locobob

Hi Ron, good to hear from you - thought you were done traveling?

I wish... I'm retired but still a gluten for punishment...

You should bring some of your fine work down to LV in Sep. I'm going to host another event...

[Paul Workman]

Originally Posted by Locobob

Working on the chambers:

So, tell us, Bob.... Are you actually porting heads, or painting the Sistine Chapel? JK, bro!

P.

[XfireZ51]

Bob,

You going to unshroud the valves?

[Locobob]

Originally Posted by Polo-1

my chamber and valves stock.

round out the "flats" at the four valves edge ( for a 4" bore) and pick up 13 cfm.

I just think you might be doing more work for VERY small gain on the "left/right" clover.

I know I told what to do to pick up 7-10 HP on the exhaust side. I did not see it done in the pictures.... 1/8 wide flat spot.

Todd's stuff is out there (and it worked for him). Keep your build to tried and true. Much easier and cheaper, and you wont need a heavy mill or special pistons to get back compression.

Hey Kev, I do plan on rounding out the flats (unshrouding the outer edges of the valves), that is why I was asking about the liner thickness. I can see the gasket rings on the heads so I figured if I knew the liner thickness I could use the rings as a reference point.
I did consider doing Gregs exhaust mod, talked to him about it a while back... but decided against it for a combination of reasons. Main reason was I simply could not come up with a way of doing it with the equipment that I have to work with, I really think a mill is needed to pull this off. I also have some concerns over proximity to coolant and air flow reattachment. I understand the theory behind the idea and Greg indicated some positive test results but I'd really like more detail on the testing and to see more proof of the concept before jumping on board - then I might be tempted to talk with some of my machine shop buddys about how to execute. I'm going to generally stick with the LPE influence on this - only with a bit more intake volume and a bunch of my (anal) attention to detail.

[Locobob]

Originally Posted by XfireZ51

Bob,

You going to unshroud the valves?

Yes

[Locobob]

Originally Posted by RHanselman

I wish... I'm retired but still a gluten for punishment...

You should bring some of your fine work down to LV in Sep. I'm going to host another event...

I'd really love to do the Vegas thing again, realistically though I doubt I will be able to swing it this year.

[Locobob]

Originally Posted by Paul Workman

So, tell us, Bob.... Are you actually porting heads, or painting the Sistine Chapel? JK, bro!

P.

I am using the pink pen just for you Paul, I know it's your favorite color

[Polo-1]

I'm out of stock on standard & LA sleeves. I do have a RW HD liner on the bench. If you need to use one for inking.

The exhaust deal was told to me ( they had the motor on the dyno, pull the ex manifolds off, flattened the edge and pulled 7-10 more hp ) this was done on more than one motor to verify.

Just FYI

[XfireZ51]

Polo,

Please describe the GVD exhaust mod further. I just put on a set if GVD heads and noted a mod on the exhaust port/header interface.