Inline 6 question for you - The 1947 - Present Chevrolet & GMC Truck Message Board Network

longorange68 · 07-24-2006, 11:52 PM

Got a question and I am hoping not to take too much crap for it. Would a 292 crank fit in a 250 block? Is the 292 a "stroker" version of the 250? I am looking in to keeping the 250 that is in my truck just to be different, but wondering also if I could get a few cubic inches out of it.... Let me know if this is possible or if I am just sniffing glue. Anyone know where to get a reasonably priced gear vendors overdrive?

Josh

68haywagon · 07-24-2006, 11:57 PM

The 292 has a taller block to accomidate the stroke of the 292, so I don't think it would work. I could be wrong...it wouldn't be the first or last time

I have no clue on the gear vendors stuff. Sorry.

Mike

**'68OrangeSunshine** · 07-25-2006, 12:43 AM

There was such a thing as a "cheater 292". IIRC it was a 250 block overbored with a 292 crank, and possibly custom length rods and special pistons. It is prohibitively expensive to machine it, I hear. The main reason was to bend some racing rules so you could get more cubes on a STD-LD block if the taller [292] HD-TD block was prohibited by class rules.
You could get a clearer answer over at www.inliners.org
(I never saw one, just heard about it on the Inliners board.)
But you could bore out a stock 250 block to .030 or .060 and come up with an aggressive 266 CI...
Check out "Chevy Inline Six Cylinder Power Manual" by Leo Santucci. He's got a lot of tricks in that book.

cell · 07-25-2006, 02:39 PM

I saw something like that on ebay just the other day (a 250 which had been "stroked" to a 292).

http://cgi.ebay.com/ebaymotors/Chevy...12257769QQrdZ1

Fred T · 07-25-2006, 07:25 PM

Santucci's book is what you need for building a late model six. The biggest obstacle is getting them to breathe properly. The head design is horrible. You need a cross-flow head, but most can't afford the 2-4 grand for one.

I will warn you, building a six is costly and addictive.

**'68OrangeSunshine** · 07-26-2006, 12:55 AM

Quote:

Originally Posted by Fred T

I will warn you, building a six is costly and addictive.

AMEN.

07-24-2006, 11:52 PM	#1
longorange68 Registered User Join Date: Apr 2006 Location: Hockinson, Washington Posts: 115	Inline 6 question for you Got a question and I am hoping not to take too much crap for it. Would a 292 crank fit in a 250 block? Is the 292 a "stroker" version of the 250? I am looking in to keeping the 250 that is in my truck just to be different, but wondering also if I could get a few cubic inches out of it.... Let me know if this is possible or if I am just sniffing glue. Anyone know where to get a reasonably priced gear vendors overdrive? Josh __________________ 1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.

07-24-2006, 11:57 PM	#2
68haywagon I'm watching you! Join Date: Feb 2005 Location: Levittown, PA Posts: 1,822	Re: Inline 6 question for you The 292 has a taller block to accomidate the stroke of the 292, so I don't think it would work. I could be wrong...it wouldn't be the first or last time I have no clue on the gear vendors stuff. Sorry. Mike __________________ 2012 Chevrolet Silverado 1500 Z71 4WD 1993 Chevrolet C-1500 W/T - Blue - 4.3L V-6, 4 speed auto - Dad's (RIP) 1992 Chevrolet S10 - LS swap project 1968 Chevrolet C-10 longbed fleetside - sold

07-25-2006, 12:43 AM	#3
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,441	Re: Inline 6 question for you There was such a thing as a "cheater 292". IIRC it was a 250 block overbored with a 292 crank, and possibly custom length rods and special pistons. It is prohibitively expensive to machine it, I hear. The main reason was to bend some racing rules so you could get more cubes on a STD-LD block if the taller [292] HD-TD block was prohibited by class rules. You could get a clearer answer over at www.inliners.org (I never saw one, just heard about it on the Inliners board.) But you could bore out a stock 250 block to .030 or .060 and come up with an aggressive 266 CI... Check out "Chevy Inline Six Cylinder Power Manual" by Leo Santucci. He's got a lot of tricks in that book. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

07-25-2006, 02:39 PM	#4
cell Active Member Join Date: Nov 2005 Location: Austin Posts: 217	Re: Inline 6 question for you I saw something like that on ebay just the other day (a 250 which had been "stroked" to a 292). http://cgi.ebay.com/ebaymotors/Chevy...12257769QQrdZ1

07-25-2006, 07:25 PM	#5
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: Inline 6 question for you Santucci's book is what you need for building a late model six. The biggest obstacle is getting them to breathe properly. The head design is horrible. You need a cross-flow head, but most can't afford the 2-4 grand for one. I will warn you, building a six is costly and addictive. __________________ Fred There is no such thing as too much cam...just not enough engine.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.