Inliners International Forums General Discussion Engines Finding casting number on a 292

I recently bought a 1966 chevy 3/4 ton pickup with a 292 engine. I had to buy a fuel line (fuel pump to carb) and received the incorrect part. After receiving the wrong part I was told that the engine was actually from a 67-69 p/u. My Question is: where is the casting number on the 292 engine. I would like to cross check the number, also what are the differences between these engines?

The #'s are on pasenger side, behind fuel pump; large GM underneath. I believe 63-66 had 7/16" bolts at end of crankshaft, later used 1/2" for flywheel. Casting #'s are listed in the sidebar at left. Various head combustion chamber volumes listed by head casting #'s are listed in Tech Tips on the sidebar as well.

I'm wondering if the carb's been switched?
A 66 would have a Rochester model B while you may have a Monojet?
That would account for a fuel line difference.
BTW: Who's selling prebent lines for a 292 truck?

Old Newby - Thanks for the info. I saw the #, however I figured it couldn't be the casting number... isn't it supposed to be hidded at some secret location on the block, covered by a layer of grease making it virutally impossible to find.

Chevelle - I just rebuilt the carb, it was a (Holly reman) Rochester B, just like the one in the shop manual.
I bought the prebent line through americanclassic.com, however they are just resellers of the lines. The lines are actually shipped from inlinetube.com. My advice is to go straight to inlinetub.com if you plan to purchase any lines just incase you have any problems. I'm having problem returning the line because neither company wants to take responsibility for it and they keep telling me call the other company.

I'll check that casting number and post back with my findings. Thanks for the help.

You didn't say exactly why the new fuel line was wrong but this may help you figure out which engine and one reason for the wrong line. The 250 engine has the fuel pump located between the distributer and the right motor mount. The 292 engine has the fuel pump and motor mount positions the other way around. Therefore one fuel line would be approximately 4 inches longer than the other and this would be on the fuel pump end. Also the 292 pre bent line would be about 2 inches taller from the pump fitting to the carb fitting.

Another quick check instead of using casting numbers is the height of the lifter side covers. The 292 covers are approx 6 inches tall and the smaller displacement engines are all the same size at approximately 4 inches tall.

Neither of these visual clues will tell more than if the engine is a 292 or it isn't. To know exactly the specific engine and its original use you will have to check the casting, date, and serial numbers.

Hope this was some help to you.

Originally posted by 66_Chev_Pickup:
"Chevelle - I bought the prebent line through americanclassic.com, however they are just resellers of the lines. The lines are actually shipped from inlinetube.com."

I see that Inline Tube http://www.inlinetube.com/
lists a carb to fuel line for 67-70 trucks with 250 or 292 engines (different part numbers.)
But, for 63-66 trucks they only show one part #, no engine specified.
I'd say this is where the trouble lies.
Whoever sold you the line probably didn't know there was a difference. American Classic ought to make good if they sold it to you.
They should straighten out with Inline Tube as to what that part number was meant to fit.
"Both" is a wrong answer!
Personally I like to bend my own.
But now I see I could get a stainless line for my Chevelle, hmm........

I've dealt with Inline Tube ( Fraser, Michigan ) and found them to be both knowledgeable and good folks to do business with. I would think if you called them and explained the problem they would be willing to work with you. They also will make up any line you can imagine if you have a correct sample to send them.

The casting number on the engine is 3851659 with tells me that it is a 292 from 63-76. The date code on the block is A296 which means it was cast on January 29th in the 60's (please correct me if I'm wrong). I'm pretty sure you guys are correct and the line fits a 230-250 not a 292 it is too short to go over the head and the current (old) line also goes straight up from the outlet of the fuel pump. Where the new line would connect to a fuel pump that has an outlet that is bent at 90 degrees. I am going to call the guys at inline tube again and see if they will work with me on this.

Originally posted by 66_Chev_Pickup:
The casting number on the engine is 3851659 with tells me that it is a 292 from 63-76. The date code on the block is A296 which means it was cast on January 29th in the 60's (please correct me if I'm wrong). I'm pretty sure you guys are correct and the line fits a 230-250 not a 292 it is too short to go over the head and the current (old) line also goes straight up from the outlet of the fuel pump. Where the new line would connect to a fuel pump that has an outlet that is bent at 90 degrees. I am going to call the guys at inline tube again and see if they will work with me on this. [/QUOTE]

I think you're right it's a 66 292.
Is there a engine code stamped near distributor?
Might find it in Hollander's interchange.
I'm not sure if it was mentioned which fuel pump you have?
The sealed disposable one or the old style one that was screwed together? Pretty sure that changes fuel line routing most of the time.
BTW: if it wasn't obvious my previous post had a big typo:
>I see that Inline Tube http://www.inlinetube.com/
lists a carb to fuel line for 67-70 trucks with 250 or 292 engines (different part numbers.)<
Was supposed to be "pump to carb fuel line"
Good luck.

The fuel pump is the crimped together disposable type. Was GM still using the screw together type in '66? Is the original pump outlet on a '66 292 supposed to go straight up or is it supposed to angled at 90 degrees?

I was able to work out a partial refund from americanclassic, which was a lot harder than I though it should be. Needless to say I will NOT be purchasing parts through them any more. BTW, I've now got a fuel pump to carb line for (I believe) the 230-250 motor. If anybody wants/needs it let me know.

I'm with you Chevelle, I'm going to bend my own. I have ordered a double flaring tool and a bender locally. I figure that if I do swap out the carb for a 2bbl in the future I'm going to need the tools anyways.

Originally posted by 66_Chev_Pickup:
The fuel pump is the crimped together disposable type. Was GM still using the screw together type in '66? Is the original pump outlet on a '66 292 supposed to go straight up or is it supposed to angled at 90 degrees?

It seems they used the "serviceable" pump until 66. If they changed all model lines in 67 I wouldn't swear to that.
Seems like I took all the pumps off my 292's so can't say 100% for sure but I seem to remember the pump outlet coming straight up and line going up and over valve cover to carb vs most cars where it seems to go around valve cover. The truck routing seems like it'd be cooler but it's always in the way if you want to take off valve cover.
Personally, for a driver I'd go with a disposable style pump, that's probably what you'll get if you're away from home and have to get a pump at the first parts store you can find.