K19 mixture control valve vacuum signal hose clip for 390HP 427

[Peter M.]

Does anyone have a photo or part number? The A.I.M. says part of engine assembly. There is a picture in Noland's book on page 412, but it's hard to tell the configuration.
I did find a picture in the archives of a K19 equipped car, but it's hard tell the details.
I don't know if 66 would be the same.
Thanks

[Douglas L.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

[Peter M.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Thanks Douglas,
Is it secured by one of the intake bolts?

[Douglas L.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Yes -

[Peter M.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Douglas,
Thanks again!

[Joe L.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Yes -

Douglas-------


If you still have the valve cover off, could you do me a favor and measure the OD of the pushrods? If you have a vernier caliper it will be easy. If they are 5/16 (0.31") which is how they appear, please also let me know the build date of the engine.

Also, I'd like to know the symbol embossed on the valve end of the rocker arm. They are obscured by oil in your photo but they appear like "L".

[Douglas L.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Joe,

The build date stamp on the motor is TO216IM. The pushrods measure 0.32". Only one rocker has a "L" marking on the topside end. All the others are plain.

I replaced all of the original rockers and pushrods because I found some pushrods with bad tips and some rockers with scoring. I also put in new valve seals at the same time. If you want pics of the pushrods and rockers, please let me know.

Hope this helps.

Doug

[Joe L.]

Re: K19 mixture control valve vacum signal hose clip for 390HP 427

Joe,

The build date stamp on the motor is TO216IM. The pushrods measure 0.32". Only one rocker has a "L" marking on the topside end. All the others are plain.

I replaced all of the original rockers and pushrods because I found some pushrods with bad tips and some rockers with scoring. I also put in new valve seals at the same time. If you want pics of the pushrods and rockers, please let me know.

Hope this helps.

Doug

Doug------

Thanks very much for the information.

If you've replaced the push rods, do you know that the originals were the same OD? Did you replace the pushrods and rockers with GM-sourced parts?

Assuming the replaced rockers are GM pieces, the ones without embossment are GM #3860305. This is the part number of the rocker arms that were supposed to have been originally installed. The one with the "L" is a GM #3860308. This was used for SHP big blocks like L-72 and L-71 but are perfectly fine for L-36.