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#476 | |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,255
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Re: Post Your Straight Six Pics!
Quote:
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#477 |
Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,436
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Re: Post Your Straight Six Pics!
Yes, the rocker balls are hard steel, but that only makes them harder to fit. Rocker balls are about 7/8", the short clamping bars are 1 1/4" and grind very easily for a precise fit. The heights of the cast flanges varied from runner to runner on the Clifford and were taller than the header flange.
I do see a lot of guys get by with simple flat washers and no problems. The important thing is to do something with those end locator pins. Those will surely prevent a good seal. Using 8 studs down the length of the head was a worth while bonus in my mind. It provides better clamping and it made it so much easier to assemble the three manifold pieces plus the gasket to the side of the head. Not so hard on the engine stand, but if you are reaching over the fenders. ![]() Not one bolt is holding the manifolds in place in the photo. The manifolds are just set on the studs, one piece at a time.
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'67 GMC 2500, 292, 4spd, AC |
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#478 |
Registered User
Join Date: Mar 2012
Location: Evanston
Posts: 304
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Re: Post Your Straight Six Pics!
292 with offenhouser finned valve cover, billet specialties stream line air cleaner, HEI distributor, 3 speed overdrive, other than that all stock
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My Patinia'd 69 69-http://67-72chevytrucks.com/vboard/showthread.php?t=517537 My RHD 68 http://67-72chevytrucks.com/vboard/s...d.php?t=594928 |
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#479 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,255
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Re: Post Your Straight Six Pics!
RichardJ: You're right, I only used the rocker balls on the ends, where I removed the mounting guide pins and installed studs. I also have 2 studs in the center -- thus catching both outer holes on each header assembly. I will surely use all studs on my next L6 assembly.
69ChevyLWB: Nice valve cover. I see that's one made for the 250-292 "Late" series L6. Langdon sells an adapter to use the 235-261 "Early" series L6 valve cover on a late engine, but to me that's too much hardware.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#480 |
Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,436
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Re: Post Your Straight Six Pics!
>> Langdon sells an adapter to use the 235-261 "Early" series L6 valve cover on a late engine,<<
Santucci's book shows that as a way to get clearance for aluminum rocker arms. The rocker arm companies all discourage removing any material from the aluminum rockers for any reason. I cut the corners open and welded in extra metal to gain room for the Crane Gold on my engine.
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'67 GMC 2500, 292, 4spd, AC |
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#481 | |
Registered User
Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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Re: Post Your Straight Six Pics!
Quote:
Thanks Nate! |
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#482 | |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,255
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Re: Post Your Straight Six Pics!
Quote:
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#483 |
Registered User
Join Date: Dec 2011
Location: New York City
Posts: 648
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Re: Post Your Straight Six Pics!
I was gonna do that too. Thought it would look cool, but painted it orange instead. Let's see a pic.
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#484 |
Registered User
Join Date: Mar 2004
Location: Hoytsville, Utah
Posts: 3,365
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Re: Post Your Straight Six Pics!
I got a little more done. All 3 of my carbs are re-built, but I still need a couple odds and ends for them. I've been working on the linkage, I know what I need, now just to find it. I'll have to cruise the parts board.
![]() ![]() ![]() This is all just mock-up. As soon as find a couple more carb parts, I'll take each one of these and install on my green '68 and get them tuned up. I figure that will be the easiest way to test them. I still need to do a little clean-up on the outside of #3, so it better matches the other 2 in color. Some 4-ought steel wool will take the yellowish old finish off and leave the patina pretty well.
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'68 Panel Project Boogie Chillin' '68 C-10 Ol' Green |
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#485 |
Registered User
Join Date: Aug 2009
Location: North Bend, WA
Posts: 272
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Re: Post Your Straight Six Pics!
40 years of farm work
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68 c20 build: http://67-72chevytrucks.com/vboard/s...d.php?t=358130 Club longbed ...cause girls like'em long!!!!! |
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#486 |
Registered User
Join Date: Feb 2010
Location: Cruzeville
Posts: 219
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Re: Post Your Straight Six Pics!
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#487 |
Registered User
Join Date: Feb 2012
Location: So. Cali.
Posts: 2,642
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SWEET ! just be aware that these torque monster engines are : A. thirsty buggers ! B. sure to blow up fast if you rev. them much , they're a stroker version of the thinwall 250 and long stroke engines hate high RPM's except in very short bursts as you're going up through the gears....
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-Nate Geezer '49 3100 235 W/ Muncie SM420 SOLD '69 C/10 shortbed sidemount survivor 250 L6 W/ 350TH ![]() |
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#488 | |
Registered User
Join Date: Jun 2011
Location: Monroe, WI
Posts: 1,415
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Re: Post Your Straight Six Pics!
Quote:
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Adam My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706 |
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#489 |
Registered User
![]() Join Date: Sep 2011
Location: New Melle, MO
Posts: 104
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Re: Post Your Straight Six Pics!
I have an extra one of these, and wouldn't mind putting one in a C10 one day. It would be different, and they really wind up!
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1971 C20 "Shreck" 1980 C30 dump bed "Ratchett" |
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#490 | |
Registered User
Join Date: Feb 2010
Location: Cruzeville
Posts: 219
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Re: Re : 292 L6 Upgrade
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#491 |
Registered User
Join Date: Jun 2011
Location: Monroe, WI
Posts: 1,415
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Re: Post Your Straight Six Pics!
Not trying to be the dummy here, and I can see it is a straight 6, but which engine is this and who makes it?
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Adam My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706 |
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#492 |
Registered User
Join Date: Feb 2009
Location: Charlotte, NC
Posts: 45
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Re: Post Your Straight Six Pics!
I love this thread.
I have a 64 I bought a while back that I think I will keep the rest of my life. We've been through a whole lot together, and nobody's gonna want to pay what that's worth to me anyway. If you want the whole story read the thread in my sig. ![]() I did my first engine swap in this truck. Went from the 230 (plum full of stop leak) to a later model 250 with only 40k miles. Sold the power steering off it for more than I paid for the engine. The fancy little chrome air cleaner bit the dust after an engine backfire early on so I'm running the stock air cleaner now. Old: ![]() None: ![]() New: ![]() Having some intermittent issue with it over the past couple of days. I've daily driven it the past couple weeks while a friend borrows my car. It has been cutting off on me at stoplights occasionally and is really difficult to get restarted. Backfired on me twice just humming down the interstate at 60mph, constant rpm, which it's never done. I think it's timing. I noticed last night I could see the exhaust glowing red under the floor through one of my rust holes. (One clear pro to having holes in the floorboard). Gotta be running too lean. I know I have (at least one) vacuum leak, too, but that can't be it, can it? I will always keep the inline 6, would love to do an Offy 4bbl intake or even a 3x1bbl some day. Need a choke BADLY in the wintertime.
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CURRENT: '64 Stepside C10 Rat, 250ci Inline 6, 3 spd on Column (Thread) PAST: '67 C10 Stepside, '79 Sierra |
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#493 |
Registered User
Join Date: May 2012
Location: Salinas, Ca
Posts: 299
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Re: Post Your Straight Six Pics!
For the cutting out give the fuel filter, the one in the carb itself, a look. That was the issue when mine did that, found it full of rust.
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1966 C10 250 with 3 on the tree Build Thread Bunch of other cars no one cares about ![]() |
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#494 |
Registered User
![]() Join Date: Sep 2011
Location: New Melle, MO
Posts: 104
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Re: Post Your Straight Six Pics!
Not as common as the Chevy, so don't feel like a dummy. This is an overhead cam inline from my 67 Pontiac Tempest. They made a Sprint version with a 10.1 compression head. It also had a four barrel and split dual exhaust manifold. They only made them for a few years.
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1971 C20 "Shreck" 1980 C30 dump bed "Ratchett" |
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#495 |
Registered User
![]() Join Date: Sep 2011
Location: New Melle, MO
Posts: 104
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Re: Post Your Straight Six Pics!
Is it hard to start when cold, also? If not, probably not timing. I would look at sunk float or the choke stuck closed. Check your plugs for sooty black fouling.
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1971 C20 "Shreck" 1980 C30 dump bed "Ratchett" |
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#496 | |
Registered User
Join Date: Feb 2009
Location: Charlotte, NC
Posts: 45
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Re: Post Your Straight Six Pics!
Quote:
Got the air cleaner off and quickly realized the choke was staying on 100% of the time, which I think was causing it to run extremely rich. Fuel accumulated in the muffler, which ignited. The muffler was already blown out from a big backfire I had a long time ago, so that's why the flames came up where they did. Probably wouldn't have ignited if it had a solid muffler. Thankfully the flames went out quickly and there was no damage or injury. About a week ago I noticed the cold weather was causing it to be difficult to start. The choke lever had been bent so that it wouldn't open. I bent it back to see how it would work. Seemed like it worked, so I let it be and have been driving like that for about a week. YIKES! The choke lever is now bent BACK how it was before so it will stay off. Glad I figured it out. Still going to check timing, fuel filters, and vacuum leaks tomorrow. Bet the plugs are fouled too from driving around with the choke on all week. The saga continues.
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CURRENT: '64 Stepside C10 Rat, 250ci Inline 6, 3 spd on Column (Thread) PAST: '67 C10 Stepside, '79 Sierra |
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#498 | |
Registered User
Join Date: Feb 2012
Location: So. Cali.
Posts: 2,642
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![]() Quote:
Remember : the 292 was the standard engine in C50's and school bus chassis .
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-Nate Geezer '49 3100 235 W/ Muncie SM420 SOLD '69 C/10 shortbed sidemount survivor 250 L6 W/ 350TH ![]() |
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#499 |
Registered User
Join Date: Aug 2012
Location: BALTIMORE
Posts: 96
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Re: Post Your Straight Six Pics!
1969
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#500 |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Post Your Straight Six Pics!
Here is the 292 in my 64. I am looking for the original green engine paint for it, if anyone knows a color number.
I am going to Oregon right after Christmas to work on it a little more. This photo is from the day I bought it. I will keep the progress updated but it is slow. |
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