Small block 273 920 head porting services.

-
Dmopower

Dmopower

FABO Gold Member
FABO Gold Member
Joined
May 27, 2021
Messages
588
Reaction score
449
Location
50316
After reading some of the articles on here and seeing some of the art work some of you are doing on your 920 heads I asked a moderator and was told this is the place to inquire if any of the artists here want to port a set of 920 heads? Message me and we can talk in private. Thank you all.
 
Jadaharabi said:
Click to expand...

Much appreciated. I have done some heads and can do these if I can't find someone. But I have other projects going on and my work at best would pale in comparison to some of the stuff I have seen guys on this site do. I'll need 11/32 guides, hardened seats, preferably nitrate treated plus the Porting. Also I assume the porters here will know which valves to use. I'm thinking chevy 1.84 1.6"
 
Did you see all the photos from my 273 heads that Radar's shop did. Woody (Keith) did the work. The valves are stock size and the ports aren't large but they seem to work. I didn't have them flowed and the numbers are small I bet.

11_14_0.JPEG


11_14_0.jpgcrop.jpg


013.JPG


015.JPG


016.JPG


017.JPG


100_5145.JPG


032600951631[00].jpg


041600951718[01].jpg


041600951719[00].jpg
 
toolmanmike said:
Did you see all the photos from my 273 heads that Radar's shop did. Woody (Keith) did the work. The valves are stock size and the ports aren't large but they seem to work. I didn't have them flowed and the numbers are small I bet.

View attachment 1716017443

View attachment 1716017445

View attachment 1716017447

View attachment 1716017449

View attachment 1716017450

View attachment 1716017451

View attachment 1716017453

View attachment 1716017454

View attachment 1716017455

View attachment 1716017456
Click to expand...
I called the number I got and the number was disconnected.
 
Jadaharabi said:
What is great about the 920s? I have a set on a 318 in the garage.
Click to expand...
They are closed chambered and you can get more compression and better burn with less ping from them compared to similar open chambered heads.
 
Contact GTXJohn on the forum I know he has a few sets of 302's and he might be willing to part with a set. Also get him to do the valve job too although I'm not sure if the flow he gets which he's stated was around 200 cf is with a stock 1.78 valve.

200 cfm is more than enough for what you want.

You wont need to port them.
 
How much power you looking for they could easily do 300 hp stock, probably 325+ with enough cr and cam. If your shooting for 250-300 hp I probably wouldn't worry about.
 
You must log in or register to reply here.
-

Back
Top