Needing "390919" > Oil Drain Plug

[pagrunt]

I thought this thread would of died after the OP "decided" they didn't want to hang out with us. Need to invest in popcorn.

 

[565bbchevy]

GM chose the material, considering all the well-heeled knowledge here I'm surprised I'm the only one who knew?

I have only seen one in person on my buddy's big block and all of the teeth were worn off, just one of many bad ideas GM had back then.

 

[84 El Camino 231]

this started out as an odd thread and it's...

I came to explain why I use magnetic drain plugs, didn't expect to run into a crowd that runs the fastest dragsters on earth had never seen a plastic cam gear.

 

[84 El Camino 231]

I thought this thread would of died after the OP "decided" they didn't want to hang out with us. Need to invest in popcorn.
View attachment 113897

Agree, I guess he chose to hang out on a tree branch next to a paper wasp nest.

 

[69hurstolds]

I have only seen one in person on my buddy's big block and all of the teeth were worn off, just one of many bad ideas GM had back then.

I have an NOS chain/sprocket set. Nylon gears on the aluminum sprocket. It came in a box of parts I picked up in a "Lot". I would never recommend it unless you REALLY wanted to go full stock. I think it would be stupid as you couldn't hear the difference anyway. At least I never could. At minimum I would never use anything less than a good, quality single roller. Double is better, but for stock replacement...I've always used Hamburger's chain sets.

In case anyone has never seen a nylon cam gear in one piece and any other color than burnt orange...….here's what an NOS one looks like.

 

[565bbchevy]

In case anyone has never seen a nylon cam gear in one piece and any other color than burnt orange...….here's what an NOS one looks like.

On my buddy's big block when we first tore it apart and saw the came sprocket we both looked at each other like "WTF" the teeth we not broken but were actually worn down to little nubs then we were dumbfounded as to why GM would even do this and then to find out this was the trade off to reduce valve train noise it seemed like a bad joke.

 

[69hurstolds]

Oh, and more popcorn!

 

[84 El Camino 231]

All I am saying is from a performance aspect a nylon toothed gear would never come up for consideration for any parts list.

Right, I'm not opposed to Detroit's choice entirely, surely they had their reasons

I have only seen one in person on my buddy's big block and all of the teeth were worn off, just one of many bad ideas GM had back then.

Trust me, plastic gears were all over the place for a while, it's not something I made up.

so, not even your engine?

This is hilarious, too funny!

 

[84 El Camino 231]

On my buddy's big block when we first tore it apart and saw the came sprocket we both looked at each other like "WTF" the teeth we not broken but were actually worn down to little nubs then we were dumbfounded as to why GM would even do this and then to find out this was the trade off to reduce valve train noise it seemed like a bad joke.

Or maybe Detroit was looking out for their service department? Anyway, IMO the nylon might not be such a poor choice depending on the expectation, I've not seen nylon fail before 80k miles and I can't say the same for fancy double-roller chains,

I was only posting about the lowly drain plug on my beater cars, seemed simple and innocent enough to spark great investigation into drag strip roller chain metallurgy as opposed to Detroit's choice for the family truckster.

 

[Ribbedroof]

Another freakin' dead horse thread