New /Never installed: I purchased the wrong PN for my Oldsmobile likely the result of bad search results. The project got behind and now I cannot simply return it. It was stored indoors in my hose the entire time. Photos are actual. It was never installed as a friend who works on SBC frequently recognized it immediately. The photo is exactly how I received it but I will wrap each part individually to ship with the original box.

Here's the description from Summit Racing where I purchased it: "Melling timing chain sets are designed for use with either performance or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. The crank gears are machined from stress-proof steel. Most Melling timing chain sets have three keyways to ensure accurate timing for early or late model vehicles, and to allow you to set the cam timing at 4 degrees advanced, 4 degrees retarded, or stock. However, 50-state (stock replacement) sets have single keyways. The chains are available in several styles, such as single or double roller, single non-roller, and link belt. Melling timing chain sets are not for use above 6,500 rpm. Order the model designed for your vehicle application.

Brand:

Melling

Manufacturer's Part Number:

40400

Part Type:

Timing Chain and Gear Sets

Product Line:

Melling Timing Chain Sets

Summit Racing Part Number:

MEL-40400

UPC:

729295503491

Timing Chain Included:

Yes

Timing Chain Style:

Double roller

Camshaft Gear Attachment:

3-bolt

Maximum Advance/Retard at Camshaft:

None

Maximum Advance/Retard at Crankshaft:

2 degree

Cam Gear Included:

Yes

Cam Gear Material:

Iron

Crank Gear Included:

Yes

Crank Gear Material:

Steel

VVT Gear Included:

No

Tensioner Included:

No

Thrust Bearing Included:

No

Bolts/Studs Included:

No

Gaskets Included:

No

Offset Bushings Included:

No

Quantity:

Sold as a set.

Notes:

Will not fit factory roller cam applications."