Critique My Engine Build....440

[threewood]

Not to sound stupid but I'm curious as I've never had aftermarket heads before and never ordered custom pushrods... but when selecting a length how many cylinders do you actually check? All of them????

Also Threewood have you thought about going efi? I'm wrestling with that as a good carb $500 & up, Sniper for $1k???? Fitech $1200 +/-????
Thanks for the info guys,

I'll check a few to get an average. Hopefully it will be within a couple thousandths. I'm running solid lifters too so I have to subtract the lash.

As for EFI....I have thought about it but will probably just go carb. I don't mind tuning them and as of now probably only a budget for a carb.

 

[khryslerkid]

Not to sound stupid but I'm curious as I've never had aftermarket heads before and never ordered custom pushrods... but when selecting a length how many cylinders do you actually check? All of them????

I like to check all four corners, 1,7,2,8. Opposite corners would probably work ok but I'm ****

 

[threewood]

https://www.forbbodiesonly.com/moparforum/showcase/finishing-up-valve-train.4885/

I just mocked up #6 with zero lash and spun it to full lift. Here is the swipe. Looks centered to me, what do you think? I still need to tune in pushrod length but I did make reliefs in the head for the pushrods. It makes me feel better about it.

 

[khryslerkid]

I just mocked up #6 with zero lash and spun it to full lift. Here is the swipe. Looks centered to me, what do you think? I still need to tune in pushrod length but I did make reliefs in the head for the pushrods. It makes me feel better about it.
View attachment 410807

Thats what you want. Looks good

Do you know the recommended amount of thread on the adjuster, sticking out below the rocker?

 

[threewood]

Did the same on #2 intake, same swipe. I am concerned with the lack of space between the underside of the rocker and retainer. Is it acceptable to remove a little material underneath the arm or should I try a thin shim to raise the rocker?

 

[threewood]

Thats what you want. Looks good

Do you know the recommended amount of thread on the adjuster, sticking out below the rocker?

I was told .300" out but that leaves the first thread just inside the rocker. One more turn out gets full thread contact and I didn't see any issues with the cup contacting the arm. How did you set yours up?

 

[khryslerkid]

I am concerned with the lack of space between the underside of the rocker and retainer.

If it doesn't touch you should be good.

When doing mine, the installed height of the retainer was different on the exhaust than the intakes. It ended up being the "keepers". They were designed to touch each other, allowing the valve stem to rotate while running. Keeps the carbon from building up on the seat. Well I didn't like them so I found different ones which allowed the installed height to come in where it belonged.

It could be the style of keeper that's not allowing your retainer to be as low as your intake valves are.

Are all of the valve heights the same as you look across the stems? You can use a straight edge to check.

 

[khryslerkid]

I was told .300" out but that leaves the first thread just inside the rocker. One more turn out gets full thread contact and I didn't see any issues with the cup contacting the arm. How did you set yours up?

Zero to two threads. I ended up with one when it was all together.

If you're useing solid lifters, have a feeler guage under the rocker when adjusting your pushrod checker.

 

[Fran Blacker]

Beehive springs? $$$!

 

[khryslerkid]

I see where they are close now. My retainers were a smaller diameter. You might see the difference in this pic.

Your retainer isn't going to get any closer than what you're showing. It gets farther away as the valve goes down, right? So if they are not touching, you should be ok.

 

[threewood]

If it doesn't touch you should be good.

When doing mine, the installed height of the retainer was different on the exhaust than the intakes. It ended up being the "keepers". They were designed to touch each other, allowing the valve stem to rotate while running. Keeps the carbon from building up on the seat. Well I didn't like them so I found different ones which allowed the installed height to come in where it belonged.

It could be the style of keeper that's not allowing your retainer to be as low as your intake valves are.

Are all of the valve heights the same as you look across the stems? You can use a straight edge to check.

All the valve stems are the same height as are the retainers. I checked 2,4,6,8 I/E and the intake is pretty close on all 4, on the neck just off the base. Exhaust rocker is good. I was shining a light behind it and can see a sliver of daylight between the arm and retainer so maybe I am just being paranoid.

 

[khryslerkid]

Well for piece of mind, you could mark them and just take out a small "half moon" notch in each one. I bet your springs are wider than mine too. I seem to remember having a set of 911 Comps that were quite wide. They were too strong for my cam so I ordered a different set from Crane.

 

[threewood]

Well for piece of mind, you could mark them and just take out a small "half moon" notch in each one. I bet your springs are wider than mine too. I seem to remember having a set of 911 Comps that were quite wide. They were too strong for my cam so I ordered a different set from Crane.

It does seem to be more of an issue of the spring sticking out beyond the retainer. I just measured the springs in the pictures and the ones that go with my cam after break-in and the ones in there now are wider so I think it will be a non-issue.

Where did you set your rocker adjusters?

 

[khryslerkid]

I dont see a dampner spring inside your springs. Are they not required? What cam did you end up going with?

Just read your last post about changing springs. Never mind ...

 

[khryslerkid]

Where did you set your rocker adjusters

I ended up with one thread showing with my new pushrods installed. I used hydraulic lifters @ .020 preload.

 

[threewood]

I dont see a dampner spring inside your springs. Are they not required? What cam did you end up going with?

Those springs are what I am breaking the cam in with. I took out the damper, they are the stock Stealth Head springs. The springs for my solid lifter cam have a damper and inner spring, Hughes 1128. Cam is a solid grind with .552" lift, 238/242?, 105* centerline.

 

[threewood]

Beehive springs? $$$!

Lol, no. I pulled the damper. Those are the springs I am going to break the cam in with. Then I will put the heavy ones in.