Valvetrain Question

306bullet · 09-11-2003, 07:03 PM

I have a 306 w/ AFR185's. I am running a .560" lift cam. I had my "machine work guy" check assembled height, valve clearance, pushrod lenght etc. He said it all was great! I have put about 200 miles on the new motor. The other day, I had some serious valvetrain chatter. I pulled the valve covers and found the intake pushrod almost out from underneath the roller rocker. The perma-loc was finger loose. I am guessing that I missed one when tightening them up?
My question is this, I am running a stock length pushrod (6.25"). Do you think that this sounds right? AFR, along with most other aftermarket head companies, recommends a little longer pushrod. I would like some input on what you might recommend.

Thanks Brent

fiveOguy20 · 09-11-2003, 07:48 PM

i would recommend calling the cam manufacture an ask them cuz the cam base circle is what determines pushrod length. good luck

09-11-2003, 07:03 PM	#1
306bullet Registered Member Join Date: Jul 2002 Location: Indiana Posts: 51	Valvetrain Question I have a 306 w/ AFR185's. I am running a .560" lift cam. I had my "machine work guy" check assembled height, valve clearance, pushrod lenght etc. He said it all was great! I have put about 200 miles on the new motor. The other day, I had some serious valvetrain chatter. I pulled the valve covers and found the intake pushrod almost out from underneath the roller rocker. The perma-loc was finger loose. I am guessing that I missed one when tightening them up? My question is this, I am running a stock length pushrod (6.25"). Do you think that this sounds right? AFR, along with most other aftermarket head companies, recommends a little longer pushrod. I would like some input on what you might recommend. Thanks Brent

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Another tire question	96Saleen	Modular Madness	6	02-10-2004 05:27 PM
A stupid question I hate asking about exhaust sound	jwboner	Windsor Power	4	08-05-2003 05:55 PM
simple question	Lonzo	Classic Mustangs	3	09-10-2002 09:37 AM
Valvetrain question for Edelbrock 6037's	Blaster	Windsor Power	1	05-25-2001 01:26 PM
Newby here, I have a question on Odometers	mustangmama	Blue Oval Lounge	3	03-03-2001 06:43 AM

09-11-2003, 07:48 PM	#2
fiveOguy20 Registered Member Join Date: Sep 2002 Posts: 156	i would recommend calling the cam manufacture an ask them cuz the cam base circle is what determines pushrod length. good luck