My 422 smallblock build

-
SSG_Karg said:
Pistons are zero deck with 23.5cc dish. W2s are open chamber variety that measured 59cc. Felpro 1008 will result in 10.5-1 compression and Mr. Gasket 1121G will bump compression to 10.75-1.
Click to expand...
Check Cometic gaskets, they may have one you like.
I have used them twice no issues
 
Last edited:
SSG_Karg said:
Pistons are zero deck with 23.5cc dish. W2s are open chamber variety that measured 59cc. Felpro 1008 will result in 10.5-1 compression and Mr. Gasket 1121G will bump compression to 10.75-1.
Click to expand...


Too bad you didn’t stick the piston out .045ish. That would have gotten you closer to 11:1 or a bit more.
 
j par said:
And out of pump gas range likely...
Click to expand...


Not if he gets his cam timing correct and his cooling system is correct.

It doesn’t take a big cam, it takes the correct cam.

BTW, I’ve been doing some plug reading research and from what I’m seeing, you may be able to cut back on the race gas percentage you are using. I’d leave it the same for the fuel in the nitrous tank, but the engine only fuel is showing excessive leading.

Also, if you are still getting those little wave looking marks on the ground wire you may have a fuel stratification issue.

Easier to see in real life than in pictures though. Just an FYI.
 
yellow rose said:
Not if he gets his cam timing correct and his cooling system is correct.

It doesn’t take a big cam, it takes the correct cam.

BTW, I’ve been doing some plug reading research and from what I’m seeing, you may be able to cut back on the race gas percentage you are using. I’d leave it the same for the fuel in the nitrous tank, but the engine only fuel is showing excessive leading.

Also, if you are still getting those little wave looking marks on the ground wire you may have a fuel stratification issue.

Easier to see in real life than in pictures though. Just an FYI.
Click to expand...
I've called you so I can take this to the proper thread as far as my race gas goes..
Remember 90% of us are just amateurs trying to puzzle together a fun combination.. we need a little room for error we're not gurus with precise Cam and cam timing and precise everything we've got to fall into some leeway perimeters..
 
Oh I can run pump gas all day long it's just when I shut the car off it doesn't want to... I must have bad cam timing LOL..
 
the old Comp 306solid, 260/260 @ .050, 110 lsa, .550"/.550" in at 107* . she shuts off fine, if not turn down idle speed or shut off in gear. quench helps
 
yellow rose likes the 260/260. Ed Hamburger , the old 340/360 guru said for an automatic (aka slushbox) go like 252/260, for a stick (or a gearhead car) go 260/260. Ed was cool to talk to, way back when he said ld340 intake, then Offy portosonic, then victor 340. I run his modified 340 windage tray etc.
 
Ed's cams were Cam Dynamics
I have no idea if you would get that exact cam if ordered today from Crane after all the changes Crane's been through. NO matter old chevy grind anyway
lots of hard to find parts from Hamburger back in the day
 
j par said:
Remember 90% of us are just amateurs trying to puzzle together a fun combination.. we need a little room for error we're not gurus with precise Cam and cam timing and precise everything we've got to fall into some leeway perimeters..
Click to expand...
I can think of about 3 more off the bat that need to read this....
 
SSG_Karg said:
I ended up ordering this cam:
Mechanical Roller Camshaft; 1964 - 2003 Chrysler 273, 340, 360 2800 to 6800 Howards Cams 712113-08 | Howards Cams
I think it will fit my combo very nicely and with a possible upgrade to 1.6 rockers in the future it would increase lift to take more advantage of the long valve heads.
Click to expand...


I'm following this pretty closely as i'm in the planning stages of about the same build.. I like the spec on that cam.. Do you think that a throttle body fuel injection would work on a cam like that? I have read all the post as they have been posted but don't remember you posting about your fuel system.
 
mopfried said:
I'm following this pretty closely as i'm in the planning stages of about the same build.. I like the spec on that cam.. Do you think that a throttle body fuel injection would work on a cam like that? I have read all the post as they have been posted but don't remember you posting about your fuel system.
Click to expand...

I have a similar cam that PRH spec'd for me to use with my port efi (Edelbrock pro flo 4)

Mech Roller .380 lobe lift, 242/242 @ .050, 110 LSA. Originally was going in a hot-ish 360, going into the stroker I'm building now.
 
Last edited:
mopfried said:
I'm following this pretty closely as i'm in the planning stages of about the same build.. I like the spec on that cam.. Do you think that a throttle body fuel injection would work on a cam like that? I have read all the post as they have been posted but don't remember you posting about your fuel system.
Click to expand...
Sorry, I’m no help with the F.I. compatibility of the Howards cam. That’s probably a good question for their tech department.
I’ll be using a yet-to-be-purchased Holley 950HP. Or something similar.
 
You must log in or register to reply here.
-

Back
Top