Proform 2 piece timing cover .....anyone used one ???

Rusty Davenport · 06-13-2014, 10:40 AM

Proform 66666 2 piece timing cover ......anyone care to critique this item if they have had experience using it ???

G Anderson · 06-15-2014, 04:40 PM

I have LOTS of experience with these they do sorta work if you want to remove while in the car you probably need to remove the balancer. I replaced the special bolts with hex heads and thinned the heads down on a lathe. The middle gasket will try to squirt out on you because of the chrome plating they are also difficult to get to stop oil leaks. It still works better than dropping the pan to change cam timing.But not nearly as well as the Cloyes Hex-Adjust and the Cloyes cover I am now using !

james schaechter · 06-16-2014, 11:25 PM

I spent the extra $$$ on the Comp cams three piece cover and I don't regret it one bit! I remember using the proform thinking it would make cam changes on the dyno easy, and it was a real pain in the oil!

Alan Roehrich · 06-16-2014, 11:38 PM

I use the Comp Cams cover. It has counter sunk socket head cap screws, which can be difficult to break loose, and you have to use silicone RTV to seal it. However, it works very well, it does not leak, and I can adjust my intake centerline without even removing my harmonic dampner.

I prefer the Cloyes fast adjust timing set, it uses bolts around the perimeter of the cam gear, and has a key that rotates the two halves of the gear easily.

Alan Nyhus · 06-17-2014, 08:48 AM

I used this one, with some modifications. The front pan seal 'lip' is cast into it.

http://kmjperformance.com/small-bloc...ion-plate.html

I removed the lip from the alum cover and used the 'lip' plate from this:

http://kmjperformance.com/sbc-chevy-...all-block.html

The holes in the alum. cover are pretty large. I made some spacers that locate into the recesses in the cover, used studs and 12 point nuts:

Worked out okay. Still have to remove the balancer to get the cam access plate off, though:

Bob Gullett · 06-17-2014, 08:58 AM

Quote:

Originally Posted by james schaechter

I spent the extra $$$ on the Comp cams three piece cover and I don't regret it one bit! I remember using the proform thinking it would make cam changes on the dyno easy, and it was a real pain in the oil!

x2

06-13-2014, 10:40 AM	#1
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 506 Likes: 4 Liked 101 Times in 27 Posts	Proform 2 piece timing cover .....anyone used one ??? Proform 66666 2 piece timing cover ......anyone care to critique this item if they have had experience using it ??? __________________ NHRA AND IHRA STOCK ELIMINATOR 2772

06-15-2014, 04:40 PM	#2
G Anderson Member Join Date: Dec 2009 Location: Iowa Posts: 105 Likes: 13 Liked 4 Times in 3 Posts	Re: Proform 2 piece timing cover .....anyone used one ??? I have LOTS of experience with these they do sorta work if you want to remove while in the car you probably need to remove the balancer. I replaced the special bolts with hex heads and thinned the heads down on a lathe. The middle gasket will try to squirt out on you because of the chrome plating they are also difficult to get to stop oil leaks. It still works better than dropping the pan to change cam timing.But not nearly as well as the Cloyes Hex-Adjust and the Cloyes cover I am now using !

06-16-2014, 11:25 PM	#3
james schaechter VIP Member Join Date: Dec 2004 Location: Cumming GA Posts: 1,987 Likes: 1,279 Liked 1,428 Times in 296 Posts	Re: Proform 2 piece timing cover .....anyone used one ??? I spent the extra $$$ on the Comp cams three piece cover and I don't regret it one bit! I remember using the proform thinking it would make cam changes on the dyno easy, and it was a real pain in the oil! __________________ James Schaechter 3163 STK

06-16-2014, 11:38 PM	#4
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,098 Likes: 1,546 Liked 1,777 Times in 404 Posts	Re: Proform 2 piece timing cover .....anyone used one ??? I use the Comp Cams cover. It has counter sunk socket head cap screws, which can be difficult to break loose, and you have to use silicone RTV to seal it. However, it works very well, it does not leak, and I can adjust my intake centerline without even removing my harmonic dampner. I prefer the Cloyes fast adjust timing set, it uses bolts around the perimeter of the cam gear, and has a key that rotates the two halves of the gear easily. __________________ Alan Roehrich 212A G/S

06-17-2014, 08:48 AM	#5
Alan Nyhus VIP Member Join Date: Dec 2002 Location: Lower Dakota territory Posts: 1,180 Likes: 1,074 Liked 799 Times in 236 Posts	Re: Proform 2 piece timing cover .....anyone used one ??? I used this one, with some modifications. The front pan seal 'lip' is cast into it. http://kmjperformance.com/small-bloc...ion-plate.html I removed the lip from the alum cover and used the 'lip' plate from this: http://kmjperformance.com/sbc-chevy-...all-block.html The holes in the alum. cover are pretty large. I made some spacers that locate into the recesses in the cover, used studs and 12 point nuts: Worked out okay. Still have to remove the balancer to get the cam access plate off, though: __________________ "That'll never work....."