Checking pushrod length.

rwhite65 · 04-09-2007, 11:03 PM

Ok, I checked my pushrod length tonight and I came up with the correct length of 6.549 in my setup. I cant remember what stock 5.0l pushrods are suppose to be, but I think around 6.270? My stock ones measured 6.248.

Does this seem like a large jump for swapping to after market heads, or does this seem ok? This is the first time I have done this.

When the compressed thickness of the Fel pro 9333PT head gasket is figured in, I need roughly a 6.596 length.

thanks,
Ryan

~The Jester~ · 04-10-2007, 07:01 AM

Doesn't seem like a large jump at all bro. For as IMPORTANT as valve train geometry is, I'm glad to see your putting the effort in. Sounds like you have her figured out!

rwhite65 · 04-10-2007, 04:05 PM

I am gonna check it one more time. The length difference inst bothering me as much as the way the rocker sits on the stud was. I am not hitting anything and there is clearance, but I don't like the way the rocker was sitting. Seems the pushord end of the rocker was kicked way up when I thought I was getting my best mark. I can't seem to find anything on the net about the rocker sitting up like that effecting valvetrain geometry at all.

Just gonna double check, then I will order my pushrods.

rwhite65 · 04-10-2007, 06:22 PM

I decided to post some pics, after looking at it, it doesn't look as bad as I thought. Although I will say there is minimum clearance between the rocker and the lock nut, but if I don't hear anything from any of you gurus I am prolly gonna just order the pushrods tom.
Ryan

Rev · 04-10-2007, 07:06 PM

What I personally would like to know is how the rocker roller contacts the valve stem with a solid roller lifter in place? The contact area on the valve stem should be mostly in the middle of the valve stem. That's where I want mine in a "mock up" situation. Valve train geomettry is very important IMHO.

Rev

rwhite65 · 04-10-2007, 09:47 PM

Quote:

Originally Posted by Rev

What I personally would like to know is how the rocker roller contacts the valve stem with a solid roller lifter in place? The contact area on the valve stem should be mostly in the middle of the valve stem. That's where I want mine in a "mock up" situation. Valve train geomettry is very important IMHO.

Rev

In the middle, with a nice little "straight line" across the valve stem.

andy669 · 04-10-2007, 10:24 PM

Did you check the lift with a dial indicator? If the lift is right on the money, and you have the contact patch you like, then its good to go.

Andy

04-09-2007, 11:03 PM	#1
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Checking pushrod length. Ok, I checked my pushrod length tonight and I came up with the correct length of 6.549 in my setup. I cant remember what stock 5.0l pushrods are suppose to be, but I think around 6.270? My stock ones measured 6.248. Does this seem like a large jump for swapping to after market heads, or does this seem ok? This is the first time I have done this. When the compressed thickness of the Fel pro 9333PT head gasket is figured in, I need roughly a 6.596 length. thanks, Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

04-10-2007, 07:01 AM	#2
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Checking pushrod length. Doesn't seem like a large jump at all bro. For as IMPORTANT as valve train geometry is, I'm glad to see your putting the effort in. Sounds like you have her figured out! __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

04-10-2007, 04:05 PM	#3
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Checking pushrod length. I am gonna check it one more time. The length difference inst bothering me as much as the way the rocker sits on the stud was. I am not hitting anything and there is clearance, but I don't like the way the rocker was sitting. Seems the pushord end of the rocker was kicked way up when I thought I was getting my best mark. I can't seem to find anything on the net about the rocker sitting up like that effecting valvetrain geometry at all. Just gonna double check, then I will order my pushrods. __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

04-10-2007, 07:06 PM	#5
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Checking pushrod length. What I personally would like to know is how the rocker roller contacts the valve stem with a solid roller lifter in place? The contact area on the valve stem should be mostly in the middle of the valve stem. That's where I want mine in a "mock up" situation. Valve train geomettry is very important IMHO. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

04-10-2007, 10:24 PM	#7
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: Checking pushrod length. Did you check the lift with a dial indicator? If the lift is right on the money, and you have the contact patch you like, then its good to go. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
pushrod length	redsn95vert	Windsor Power	1	04-01-2007 08:09 PM
pushrod length	redsn95vert	Windsor Power	5	10-31-2005 08:33 PM
Pushrod Length help	BLACK85GT	Windsor Power	3	02-04-2004 10:27 AM
pushrod length? which one??	DemonGT	Windsor Power	0	07-06-2003 03:51 AM
AFR 165 pushrod length question.	JaxMustang50	Windsor Power	2	04-13-2003 11:39 PM