250 vs. 292 and other questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shortymac83 · 05-02-2004, 02:06 PM

First, I was wondering if a 292 is a direct bolt in replacement for a 250? Also, do the oil pans swap over? The reason I ask is that I might be able to pick up a 292 cheap. This guy was having an old orange truck of his towed away when the motor dropped right out onto the street! Said the oil pan and exhaust was a bit dented up, but it was still in pretty good shape and was running when he parked it a couple months ago. Oh yeah, I'm going to be getting headers and a 4bbl intake for the 250 this summer and was wondering if those parts would swap over as well. I don't know what brand they are, but the headers are shorties that were originally on a 250 in an omega.

Also, what is the ratio of 67 C10's made vs. 68 C10's made? I see a LOT more big window 68's than I do 67's both on this board and just from looking around.

Longhorn Man · 05-02-2004, 02:56 PM

Total production numbers, including 1/2 ton through one ton, panels and burbs, 2 wheel drive and 4X4...
1967. 526776 units...
1968, 521486 units.
As for your 250 verses 292 question, I think the only major issue on the engine swap is one motor tower, the 292 has stagered mounts and one of them is a small block tower.
No clue on the oil pan, but I would think they don't match up. (just a guess though)

shortymac83 · 05-02-2004, 05:12 PM

OK thanks, just wanted to check.

zeeklu · 05-02-2004, 05:14 PM

The pan should be no problem. The headers and manifold should work too. Chris

**'68OrangeSunshine** · 05-03-2004, 05:52 AM

The L6 230/250 oil pan would fit on the 292 if you also swapped out the shorter oil pick-up, however that would be defeating the purpose of the 292's having a 6 quart oil pan. It's a bigger engine and has a bigger oil demand. Get the 292, then hunt for an un-fragged oil pan. It'll be much happier.
The 4Bbl intakes [Offy or Clifford] will fit on either L6. Remember the head casting is the same -- only different spring values and valve sizes make them different. As far as the headers, that's a good question? The block of the 292 is 1.75" taller than the 250 block. It looks like Clifford lists the same part no. headers for both 250s and 292s but they list them separately. Go figure?!
Try:
www.cliffordperformance.com
and also:
www.inliners.org
Hope this helps.

MOTHERTRUCKERS · 05-03-2004, 07:20 AM

I've got a set of 63-81 chevy truck Dynamax I6 headers on a truck that was a 250 switched to a 292 and they fit both without problems. If interested i have an extra new set of Dynamax headers and an Offy 4BBL intake for sale for 250.00 + shipping. Intake was used 2 weeks to break in the motor.

jimfulco · 05-04-2004, 03:37 AM

Here's a 6-cyl. hotrodding book:

http://www.amazon.com/exec/obidos/tg...95109?v=glance

**'68OrangeSunshine** · 05-04-2004, 05:17 AM

Excellent book. I met Leo at a swapmeet in Daytona a couple years ago. Nice guy. Only drawback is the book gets you asking more questions than there are answers for.

05-02-2004, 02:06 PM	#1
shortymac83 hmm... Join Date: Jan 2004 Location: Culver, Indiana Posts: 1,631	250 vs. 292 and other questions First, I was wondering if a 292 is a direct bolt in replacement for a 250? Also, do the oil pans swap over? The reason I ask is that I might be able to pick up a 292 cheap. This guy was having an old orange truck of his towed away when the motor dropped right out onto the street! Said the oil pan and exhaust was a bit dented up, but it was still in pretty good shape and was running when he parked it a couple months ago. Oh yeah, I'm going to be getting headers and a 4bbl intake for the 250 this summer and was wondering if those parts would swap over as well. I don't know what brand they are, but the headers are shorties that were originally on a 250 in an omega. Also, what is the ratio of 67 C10's made vs. 68 C10's made? I see a LOT more big window 68's than I do 67's both on this board and just from looking around. __________________ 1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR.

05-02-2004, 05:12 PM	#3
shortymac83 hmm... Join Date: Jan 2004 Location: Culver, Indiana Posts: 1,631	OK thanks, just wanted to check. __________________ 1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR.

05-03-2004, 05:52 AM	#5
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	The L6 230/250 oil pan would fit on the 292 if you also swapped out the shorter oil pick-up, however that would be defeating the purpose of the 292's having a 6 quart oil pan. It's a bigger engine and has a bigger oil demand. Get the 292, then hunt for an un-fragged oil pan. It'll be much happier. The 4Bbl intakes [Offy or Clifford] will fit on either L6. Remember the head casting is the same -- only different spring values and valve sizes make them different. As far as the headers, that's a good question? The block of the 292 is 1.75" taller than the 250 block. It looks like Clifford lists the same part no. headers for both 250s and 292s but they list them separately. Go figure?! Try: www.cliffordperformance.com and also: www.inliners.org Hope this helps. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

05-03-2004, 07:20 AM	#6
MOTHERTRUCKERS Registered User Join Date: Dec 1999 Location: BRADENTON FLA Posts: 3,269	I've got a set of 63-81 chevy truck Dynamax I6 headers on a truck that was a 250 switched to a 292 and they fit both without problems. If interested i have an extra new set of Dynamax headers and an Offy 4BBL intake for sale for 250.00 + shipping. Intake was used 2 weeks to break in the motor. __________________ Rest in Peace Ed. Thanks for all the good times.

05-04-2004, 05:17 AM	#8
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Excellent book. I met Leo at a swapmeet in Daytona a couple years ago. Nice guy. Only drawback is the book gets you asking more questions than there are answers for. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

05-02-2004, 02:56 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Total production numbers, including 1/2 ton through one ton, panels and burbs, 2 wheel drive and 4X4... 1967. 526776 units... 1968, 521486 units. As for your 250 verses 292 question, I think the only major issue on the engine swap is one motor tower, the 292 has stagered mounts and one of them is a small block tower. No clue on the oil pan, but I would think they don't match up. (just a guess though)

05-02-2004, 05:14 PM	#4
zeeklu Registered User Join Date: Dec 1999 Location: Northwest NJ Posts: 746	The pan should be no problem. The headers and manifold should work too. Chris

05-04-2004, 03:37 AM	#7
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Here's a 6-cyl. hotrodding book: http://www.amazon.com/exec/obidos/tg...95109?v=glance



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