Engine: R series valley covers

[studebro2]

Is there a difference between an R1 and R2 valley cover?
Thanks in advance,
Gary

[SN-60]

Nope, should be the same. A production change was made during the Stude Avanti run where they stoped chrome plating them and just painted them black. (like the rest of the block.)

[Mike Van Veghten]

Don't know when or why...but there are two "different" covers.

1. one has a "socket" for the road draft tube in the back
2. one has a fitting welded in to for a PCV valve sticking up out of the rear portion of the cover

Nither of the two I have are chrome plated.

Mike

[SN-60]

Don't know when or why...but there are two "different" covers.

1. one has a "socket" for the road draft tube in the back
2. one has a fitting welded in to for a PCV valve sticking up out of the rear portion of the cover

Nither of the two I have are chrome plated.

Mike

We're speaking about valley covers on "R" engines Mike.

[bezhawk]

Avanti covers would not have either a road draft tube nor a pcv fitting. The pcv valve screwed into the back of the carb, and crankcase ventilation was from a tube bolted to the side of the oil pan.

[StudeRich]

Don't know when or why...but there are two "different" covers.

1. one has a "socket" for the road draft tube in the back
2. one has a fitting welded in to for a PCV valve sticking up out of the rear portion of the cover
Nither of the two I have are chrome plated.Mike

I can answer your confusion about the two types of Lark/Hawk Valve Lifter Cover Plates (non-Avanti/JT, JTS).

The 1963's had an ADAPTER to fit the large hole with a small Bolt hole in it. This Cover USED TO BE used for the draft tube, and later for the PCV. A 3/8" Hose connects to the adapter.

The 1964's have a threaded fitting welded in, to screw in a PCV Valve with a 3/8" Hose on the other end and no large hole at all.

As Bez said, neither of these were used on "R" Series Engines.