[rmcomprandy]

Howdy, I am slowly restoring my all original '78 Ford class C motor home with original stock 460 and 46K miles. There are no engine mods at this time. I'm interested in installing a new timing chain and have read about the pre-'72 double roller timing chains that can enhance performance. My intention is just to gain some performance (torque) and reliability in the long run.

Can anyone with experience in this matter refer me to a specific timing chain? I've seen the Ford Racing M6268-B429 timing chain but thought I'd ask if this is the best one to consider or are there others that are superior.

Thanks for your help.

When simply replacing a factory "Retarded" timing set simply get a double "plus roller" set from any good parts store for a 1990 and later light truck truck engine. It is "straight up" and NOT "retarded"

 

[rmcomprandy]

Howdy, I am slowly restoring my all original '78 Ford class C motor home with original stock 460 and 46K miles. There are no engine mods at this time. I'm interested in installing a new timing chain and have read about the pre-'72 double roller timing chains that can enhance performance. My intention is just to gain some performance (torque) and reliability in the long run.

Can anyone with experience in this matter refer me to a specific timing chain? I've seen the Ford Racing M6268-B429 timing chain but thought I'd ask if this is the best one to consider or are there others that are superior.

Thanks for your help.

When simply replacing a factory "Retarded" timing set simply get a double "plus roller" set from any good parts store for a 1992 and later light truck truck engine. It is "straight up" and NOT "retarded"

 

[rmcomprandy]

Replacement of the original is a worthy goal. Another possibility is the Cloyes. I used the Cloyes billet. It also has the 9 positions ("straight up"; 4 retarded; 4 advanced; all at increments of 2 crankshaft degrees). The Ford may be a better value.(?) If you go with a roller and want to use the original oil slinger, be sure to check the chain to slinger clearance. Some run close. I added a thin shim to assure sufficient clearance. All worked well.

The original IS a double roller chain.

It is known as an OEM style "Plus" roller set-up and there are many aftermarket suppliers who also package this type timing set for O.E.M. replacement or high performance.
The Ford Racing, Cloyes and a lot of others use a stronger and more accepted in the racing world,"True roller", double roller timing set. Some have a steel top cam gear and some are cast ductile iron for the cam gear; some have nine position crank gears and some have 3 position or only one position.

The largest problem with the original set-up for that year "driver" engine is the retarded crankshaft gear. The 93 and up factory timing sets are "straight-up" and do not have a retarded crankshaft gear.