Some "Dynomite" Heads!

[Locobob]

Thanks for the encouragement everyone
Quality of work is what I really strive for in doing this, takes forever but I think its worth the extra effort.

[Locobob]

Almost done with the intake side of the heads. At this point I am mainly working the area around the valve boss and guide in an effort to provide a smooth channel for the air around these obstructions.

[Locobob]

Switching gears to the exhaust side, the stock valve guide bosses are huge and don't blend well into the overall port - much like the primary bosses on early style injector housings. The casting compensates for this somewhat by extra port width in this general area.

Here we have: left side boss with just a little bit of blending around the perimeter, right side boss with some rough cut size reduction.



Some more rough cut reduction and blending



A little closer shot of the same



View from header side. Interestingly I have found that "as cast" one exhaust runner tends to be slightly larger than the other - near where they come together.

[Pete]

Rob,very nice


Pete

[Locobob]

Originally Posted by Pete

Rob,very nice


Pete

It's getting there. Maybe if I take my sweet *** time you can talk Cliff into doing some cams

[Pete]

Originally Posted by Locobob

It's getting there. Maybe if I take my sweet *** time you can talk Cliff into doing some cams

$750 adds another 20-25 hp
I have a set done on the shelf no waiting,i would need his stock intake cores.

Pete

[RICKYRJ1]

Nice Job Rob, nice to see the work of a true craftsman who cares about the final results of his hard labor

[1990 quasar blue]

Originally Posted by Pete

$750 adds another 20-25 hp
I have a set done on the shelf no waiting,i would need his stock intake cores.

Pete

Wow. Someone would have to be crazy to go through all the time and expense of head porting and leave at least 20 more horses on the table for 750.00. Sorry to get off topic Rob phenomenal work as always. A surgeon with a grinder.

[Pete]

Originally Posted by Dynomite

Pete......do you have a thread somewhere describing what you do to cams
Why only the stock intake cores?

Can I use my original lifters?

Robert........how are we going to attribute HP gain to porting if I use Pete's cams

Well i figure you want just Intakes.
If you want exhaust cams i would also need your stock ex.cam cores.
Specs:
Intake
.236 .425
Exhaust
.220 .425

What do you mean by what i do to them? of course i don't have the machinery to regrind cams i send them out.

Pete

[Pete]

The exhaust cams are worth about 5 hp.
With intakes alone you will see 15-20 add exhaust will 25.


Pete