If anyone needs a double roller timing set for a /six, Clifford Performance just started carring them. It's not on the web site, you have to call them about it. With shipping and taxes, it came out to be just above $150.00 for me here in southeast Missouri.

The Cox Boys are also carring double row, roller timing sets, last I checked they had two kinds, the iron one and the multi keyed steel ones from JP Performance.
DD

The iron set is $60, the steel set is $98.

Cecil

Guess Clifford's gotta make up all the cash their losing from discounting the Hyper-Pak intakes, huh?

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Official Cookie and Mater Tormentor.

I tried calling Cox Brothers, but kept on getting fax machine noises.

The fax and phone #s are close.
Fax # is 614-268-9930
Phone # is 614-268-9920
It was working last week.

Cecil

I was looking at the D.C. Connection info and it said you need these items to convert to a roller chain. Is this true? Still Available?

1. cam sprocket - P400715
2. crank sprocket - P3690280
3. roller timing chain - P3690279

If this is just old stuff and you don't need a conversion kit please excuse my ignorance.

Joe

All you need to do is buy the Cox Bros set, that is the conversion.

happy building,

Lou

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Home of Slant6-powered fun machines since 1988

What's the difference between different timing sets? I had thought there was just chain type and gear type timing sets. Someone care to enlighten me?

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'74 Duster w/ HEI ignition, beat to snot suspension, A904, 8.25" 3.55 SG rear, still being tuned up and gets 17 MPG

Know how they always build a better idiot? That's me

Silent Chain is the normal set you pick-up for a standard driver/rebuild it has two sprockets (OEM ones are nylon, new Melling ones are Iron...) and a multilayered.linked chain with thin slots...it tends to wear-out and stretch after some use and shifts your timing or plays merry heck with it when it does go. The silent chain doesn't lend itself too well to being 'bushed' if you're degreeing your camshaft...

A double roller chain on the other hand....



Is a nice improvement (supposedly is standard on all 'magnum' V-8's), it sometimes has 'key ways to reset your timing if the cam won't degree properly, you can also drill the cam gear and bush it to reset the timing events (mopar bushing set, or some lead shot...), the roller chain I also hear keeps timing pretty steady (so far 10k on my rebuild and my timing mark is still where it was 9800 miles ago...)


someone else might have a better way to compare these fuji apples to golden delicious...





-D.Idiot

The term "roller chain" comes from the small roller sleeves and axle pins used in this type of chain. The sleeves actually roll over the gear tooth.

As for the gears, material and construction are different. Plastic coated aluminum, cast iron and steel gears are all offered. the heat treated and multi-keyed bottom gear (crank gear) really helps if you degree-in the cam.
DD

What exactly does it mean when you degree-in the cam?

Note the change of sig to reflect the obvious

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'74 Duster w/ HEI ignition, beat to snot suspension, A904, 8.25" 3.55 SG rear, still being tuned up and gets 17 MPG

Know how they always build a better idiot? That's me

To "Degree-in" a cam is to set the position of the cam in relationship to the crankshaft and pistons. The timing chain and gears connect the crank movement to the cam "events" so the valves open and close at the right time.
Search the messages for "degree wheel' or "split overlap" for more info.
DD

I ordered a steel timing set from Cox today. The lady I talked with, I think her name is Rachel, was very pleasent and helpful. If she is any indication of the way these folks are I will look forward to doing more business with them.

C-Dog

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go fast, turn left, don't screw up.
WWW.Mopardropheadcoupe.com

I may as well add a photo of the JP Performance timing chain set.
All steel gears with multi keyways on a heat treated lower gear. It is a true roller type chain. Cox has these imported from down under, they are made in australia.
DD