Am looking for a quality replacement 9 way ajustable timing chain set for big block roller cam race motor. Currently have a Cloyes unit with a thrust bearing that I am done trying to work with. They dropped the ball with that one. I remember talking with Cab about that one. Not sure what his solution was. I will be using a thrust button or Mancini thrust bearing and an Indy cast timing cover.Trickflow has one listed as part# TFS 61678525 and was wondering if that set was up to the job. Would like to hear from all who have had good results with any others also. Thanks,Bill

Rollmaster.

I thought PROGEAR is what everone was suggesting at one time

Anyone have any experience with using a Trick flow or any other unit with a cam thrust button and Indy cast alum. timing cover for solid roller applicaton. Cab has recommended comp cams #7125 and it looks really good on the face of the cam gear from the photos. Looks like more room to accomodate a thrust button and bolts. Thanks, Bill

I bought one and the gears looked nice. Comes with a rolon chain however and I saw some reports of failures so bought a Rollmaster set to replace it.

Rollmater gears, Iwis chain.

Rollmaster. The original owner was a Mopar guy.

Ok
After reading these post's I will not install the Cloyes timing chain that i purchased a while back for my Future block, Now im waiting on the CS5150 rollmaster that i just ordered.

Wise choice. Years ago when I freshened up my hemi I found some metal chunks in the oil pan. Didn't know where they came from initially...motor was running perfect. After looking over everything, I found the timing chain center links were breaking apart and the pieces were piling up in the oil pan. Luckily they weren't small enough to make it though the oil pickup. It was the expensive billet Cloyes Hex-a-just timing set.
Replaced it w/ a Rollmaster and it's been fine ever since.

Yup!
Its the billet Cloyes Hex-a-just timing set that im shelfing for the Rollmaster

I was looking for a timing set for my 5.0 Mustang and this thread was just in time. Ordered a Rollmaster 10030 and its the nicest timing set I've ever seen.....Really like the torrington bearings.

Anything can fail under the right circumstances.

Dude, you have the worst luck I've seen
How bad did that failure affect the rest of the motor?

My first thought,Is that a rollmaster?
Then after looking at the gear i see its casted steel, Im guessing the cheap part was the right circumstance for the failure.

That was the reason I had to tear the 440 down last time.

It is a Comp double roller set driving a .480" cam with standard Eddy heads and springs. I had about 45 minutes run time on it and was on the highway for a break in run when it happened.

We never did figure out what the exact cause was. The cam bolt washer is bent back over the bolt head so the gear was leaning on it pretty hard. The locating pin was sheared. Instead of a drilled hole for the pin Comp used a slot cut upwards from the bolt hole. We can only assume the gear shifted slightly when the pin broke and tension pulled it down on the bolt. That broke out the back side of the grear and it let go.
The strange part was damage to the rear edges of the lobes in front of each cam journal. It also took chunks out of the associated lifters.

I was out of warranty by time (2 years on the shelf) but Comp engineers had never seen that failure and replaced the cam, lifters, and timing set. No complaints with them as the went out of their way to help.

We could not rule out assembly error so I wrote it off and Sh!t Happens.

12 valves lightly kissed pistons and the front main bearing was wasted.

The ProGear is the one you want. The last 2 cloyes is used wore out fast. The ProGear will last you a long time.

been very satisfied with PROGEAR'

Who makes the ProGear timing sets?

The 3-bolt 9-way roller thrust version from 440 Source has worked fine for me, but I'm only 700# open spring pressure on a 0.720" lift cam.
Use the same timing sets in 3 or 4 other engines with smaller cams.