1972 Chevy C20 with 292 1st P.U. owner

['68OrangeSunshine]

Originally Posted by NewBayColony

Mine (292 C20) came without power brakes and steering. Somewhere the power brakes were added along with the offset air cleaner. I have the 4.57s and I am looking into a 3 speed overdrive now as I wanna keep the 3OTT. Always been a fan of 292's ever since I worked on them in the late 60's early 70's. A company we did the maintenance for had them in C50's with 2 speed rear ends. I also ordered one in a 78 2500 4wd GMC. The guy I sold it to still has it with 225000 on it and it's never been torn down.

Yeah. He's still got another 25,000 to go.

[rustytruck50]

Originally Posted by Tiiimmmaaayyy

About 2" too. Thinking about raising hell at the walmart parking lot to christen the turd. :-)

Hmmm....Ice Follies
Don't get yourself on the naughty list

[Tiiimmmaaayyy]

Mines a automatic too. I wonder if that's kinda rare? I'm an amputee so I needed the automatic and was glad to find it.

[rustytruck50]

Originally Posted by Tiiimmmaaayyy

Mines a automatic too. I wonder if that's kinda rare? I'm an amputee so I needed the automatic and was glad to find it.

Wow...that's not very common at all...dont think I've seen that very many times!

[NewBayColony]

After I posted about mine, I was on another thread and found out my truck did come with power brakes. They were standard equiptment. That's why it wasn't listed on the glove box door.

[Tiiimmmaaayyy]

Here's the options.

[Tiiimmmaaayyy]

Very nice! You have given me some good ideas for the future.

[Tiiimmmaaayyy]

Newer Engine pics guys.

[Travisarmenta]

What carb is that?

[Tiiimmmaaayyy]

I ordered it from Amazon when the original one crapped out. I kitted the old one, but the massive leak turned out to be a crack in the bottom of the bowl. I didn't feel like JB welding it so I got the new one. It's probably a chinese knock off.

[Travisarmenta]

Originally Posted by Tiiimmmaaayyy

I ordered it from Amazon when the original one crapped out. I kitted the old one, but the massive leak turned out to be a crack in the bottom of the bowl. I didn't feel like JB welding it so I got the new one. It's probably a chinese knock off.

Thank you,

Any difference in throttle response or lagging? I've heard that the venturi may be bigger from the factory for the 292.

[Tiiimmmaaayyy]

The response is great now, but the old carb wasn't bad. The old carb was so worn out and leaky that it would be hard to really compare them accurately anyway. The venturis are the same, but the new one isn't specifically meant for a 292 since it's generic and can be used on a 235 and 250 as well. I've found that it's jetted a little lean in my assessment, probably because of it's one size fits all nature. Because of the long stroke and low compression I've been able to run a lot of ignition advance and the distributor that I installed has a quick mechanical advance and adjustable vacuum advance that I topped out it's real snappy. I'll probably adjust the metering rods to the specs for the 292 one of these days and it should run even better, but that will probably hurt the already dismal gas mileage. I've tried non alcohol gas and it definitely runs way better an the 10% alcohol so I assume that's what it's jetted for. That's great here in Nebraska since it's 30 cents less a gallon. I'm an old mechanic with a great deal of carb experience so I love having something I can tune without having to resort to using a laptop and dyno.

['68OrangeSunshine]

292s were never considered an economy engine. They are intended for use in a work truck, with reliability and grunt torque. I remember when 25 cents a gallon for premium at the Arco station at Cahuenga off the Hollywood Freeway [101] was considered a scandalous rip-off.
Gas and oil were cheap expendables when these engines were designed.
I don't know where to get alco-free gas in my area, but once when you could still buy Tetra-ethyl-lead additive [1 Qt/20 Gal], I got a speeding ticket because my engine was running so much smoother, I thought I was driving slower.

[Tiiimmmaaayyy]

I miss the good ol days myself.

[Travisarmenta]

Originally Posted by Tiiimmmaaayyy

The response is great now, but the old carb wasn't bad. The old carb was so worn out and leaky that it would be hard to really compare them accurately anyway. The venturis are the same, but the new one isn't specifically meant for a 292 since it's generic and can be used on a 235 and 250 as well. I've found that it's jetted a little lean in my assessment, probably because of it's one size fits all nature. Because of the long stroke and low compression I've been able to run a lot of ignition advance and the distributor that I installed has a quick mechanical advance and adjustable vacuum advance that I topped out it's real snappy. I'll probably adjust the metering rods to the specs for the 292 one of these days and it should run even better, but that will probably hurt the already dismal gas mileage. I've tried non alcohol gas and it definitely runs way better an the 10% alcohol so I assume that's what it's jetted for. That's great here in Nebraska since it's 30 cents less a gallon. I'm an old mechanic with a great deal of carb experience so I love having something I can tune without having to resort to using a laptop and dyno.

Thanks for the response. I'm going to strip mine down and inspect it today, see if it warrants a rebuild kit.

[mgkgmc]

Originally Posted by Tiiimmmaaayyy

About 2" too. Thinking about raising hell at the walmart parking lot to christen the turd. :-)

Just don't pull one of these. haha
https://www.youtube.com/watch?v=pD1eJDn9h0w

['68OrangeSunshine]

Originally Posted by mgkgmc

Just don't pull one of these. haha
https://www.youtube.com/watch?v=pD1eJDn9h0w

Man. I hate to see people abusing Orange Stepsides.