6 Cylinder in a 4x4? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BLAZERMAN · 10-17-2005, 08:06 PM

What does it take to go from a V-8 to a 6 cylinder in a 4x4? are the crossmembers the same? Are the stands the same as a 2 wheel drive?

BLAZERMAN · 10-17-2005, 08:13 PM

Sorry, I thought I posted this in the 4x4 section.

teeitup · 10-18-2005, 12:09 AM

Rob, the crossmember is different than a V8, I got one down here somewhere. Thanks Randy

4x4Poet · 10-18-2005, 01:49 AM

btt for more specific info, please.

Another board member turned me onto the idea of a turbo'd 292.

krue · 10-18-2005, 04:51 AM

I'd like to know myself. I'm thinking about buying a 72 blazer with no engine. It had a 350, I have a 250 laying around. What's it gonna take to throw it in there?

**'68OrangeSunshine** · 10-18-2005, 05:42 AM

Quote:

Originally Posted by 4x4Poet

btt for more specific info, please.

Another board member turned me onto the idea of a turbo'd 292.

[No names on location, of course.

]
I understand there is a book, "Maximum Boost", by Corky Bell that is a must-read. Don't have it yet myself.
I have a '72 K/5 rolling frame I intend on running a normally-aspirated 292 in. I have a Holley 390 left over since I put an Ed$elbrock 500 on the L6 in my stepside. I still need to acquire an SM 465/NP205 combo. Also will be converting a KE automatic truck to KS manual. Guess I'll also need to get the X-member.
Also thinking of powering a '67 K/10 suburban with a 292 on turbo. Big project, very spendy, but maybe not as costly as operation costs plus rebuild of a scorched 454. (With gas near $3/gal). Sub has a TH350 now, thinking of a 700R4 for the OD. Not sure how effective a switch-on-the-fly gas/propane set-up could be, but that's another bubble of the Suburban pipe dream.

charlieo · 10-18-2005, 06:44 PM

I've got a 72 4x4 that originally had a 250-6 in it & I went directly to a sb 400 no changing anything ! Except getting used to 375 hp !!

**CUSTOM/10** · 10-19-2005, 01:12 PM

I don't know about the 250 crossmembers, but the 292 crossmember is different, and is specific to the 292. The motor mounts are offset from each other. If anyone is interested I have a very nice 292 4x4 crossmember that I'll be removing shortly to install a 350.

Gary

**special-K** · 10-20-2005, 12:09 AM

Hmmm,Don`t need to change crossmembers on 2wds,so....??

**'68OrangeSunshine** · 10-20-2005, 06:26 AM

Custom/10: PM sent

**CUSTOM/10** · 10-20-2005, 01:38 PM

Quote:

Originally Posted by '68OrangeSunshine

Custom/10: PM sent

Returned PM

70blazerpickup · 12-16-2005, 10:12 AM

the small block crossmember and the inline 6 cross members are the same. i had a 250 6 and i pulled it out and dropped a 350 right in. the only thing i had to change was the clutch linkage and the throttle linkage.

**'68OrangeSunshine** · 12-16-2005, 04:08 PM

The 292 L6 required its own unique [almost diagonal] crossmember in 4wd only. The C/series could use the regular frame rails. 292s have an off-center mount configuration -- GM moved the passenger-side motor mount forward, maybe to counteract the greater torque of the 292 (?) -- the fuel pump went to the center where the motor mount was on the 230/250s. The smaller L6s had symmetrical mounts. On the 2wd the more forward right hand mount can connect to the frame rails, on the 4wd, it needs a special crossmember.

CraigS · 12-16-2005, 08:08 PM

I currently have a 454 in my '72 4x4 and am thinking of a turbo 292. Does it really need a new crossmember or can't I just fab up mounts and weld them to the frame?

**'68OrangeSunshine** · 12-17-2005, 06:17 AM

If you can weld, you can fab anything. I was lucky enough to get Custom/10's 292 crossmember, so I can get nearer to a factory style install.

4x4Poet · 02-11-2006, 07:04 PM

Since 73up(-87/91?) GM light truck, V8 engine crossmembers bolt into 67-72 4x4s with just a little drilling and trimming, wouldn't 73up 292 4x4 crossmembers also bolt in? IOW, wouldn't obtaining a 292 engine crossmember for a 67-72 4x4 only entail a simple junkyard search for a GM, 292-equipped pickup or burb? Missing the 292, of course.

**'68OrangeSunshine** · 02-12-2006, 05:00 AM

I couldn't tell ya pal. For me the Chevy Truck world is flat -- bounded on the East by 1967 and stretching far to the West until 1972. The rest is a mystery, but I've heard if you go beyond that you fall off the edge.

shelby987 · 02-15-2006, 02:21 PM

Would just like to chime in, my truck has a 250 in it.....and in the mud the column shifter, and the L6 make for an awesome combination(real quick r-1st shifts...and not bogged down in the front end). I have a custom built 250 in the garage waiting its chance to tear up some mud as well......I would have gone with a 292 for torque, but the price for the built 250 was too good to pass up.

Chevrolet4x4s · 02-27-2006, 10:58 PM

Quote:

Originally Posted by krue

I'd like to know myself. I'm thinking about buying a 72 blazer with no engine. It had a 350, I have a 250 laying around. What's it gonna take to throw it in there?

Lots and lots of duct tape .......did i mention duct tape

Shane

1967k30 · 02-28-2006, 10:10 AM

I too an considering going to a 292 w/ a Clifford kit. But was wondering what kind of power I will have? I'm also getting a 402,just because the price was right

. I need to decide which to run. I currently have a gutless 350 that burns an unreal ammount of fuel

.

**'68OrangeSunshine** · 03-03-2006, 03:19 AM

1967K/30: I would suggest an Offy intake instead of the Clifford. The Offy is reputed to be better at low RPMs and low end torque as you find in trail running, the Clifford intake is more designed to flow better at high RPMs, such as one encounters when dragging a 1/4 mile. Clifford headers do rule however. I'm still using a pair I bought in 1978 on my '68 Stepside. Second engine, some repairs -- resectioned crushed #5 downtube, resurfaced intake flange, but more or less the same pipes.
I use an Offy intake, Edelbrock 500 CFM 1404 Carb, and Clifford headers on my 292.

10-17-2005, 08:06 PM	#1
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,828	6 Cylinder in a 4x4? What does it take to go from a V-8 to a 6 cylinder in a 4x4? are the crossmembers the same? Are the stands the same as a 2 wheel drive? __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

10-17-2005, 08:13 PM	#2
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,828	Re: 6 Cylinder in a 4x4? Sorry, I thought I posted this in the 4x4 section. __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

10-18-2005, 12:09 AM	#3
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,395	Re: 6 Cylinder in a 4x4? Rob, the crossmember is different than a V8, I got one down here somewhere. Thanks Randy __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

10-18-2005, 01:49 AM	#4
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	btt for more specific info, please. Another board member turned me onto the idea of a turbo'd 292. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup. Last edited by 4x4Poet; 10-18-2005 at 01:50 AM.

10-18-2005, 06:44 PM	#7
charlieo Registered User Join Date: Feb 2003 Location: sw Posts: 341	Re: 6 Cylinder in a 4x4? I've got a 72 4x4 that originally had a 250-6 in it & I went directly to a sb 400 no changing anything ! Except getting used to 375 hp !!

10-18-2005, 04:51 AM	#5
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: 6 Cylinder in a 4x4? I'd like to know myself. I'm thinking about buying a 72 blazer with no engine. It had a 350, I have a 250 laying around. What's it gonna take to throw it in there? __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

10-19-2005, 01:12 PM	#8
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,854	Re: 6 Cylinder in a 4x4? I don't know about the 250 crossmembers, but the 292 crossmember is different, and is specific to the 292. The motor mounts are offset from each other. If anyone is interested I have a very nice 292 4x4 crossmember that I'll be removing shortly to install a 350. Gary __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859

10-20-2005, 12:09 AM	#9
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 6 Cylinder in a 4x4? Hmmm,Don`t need to change crossmembers on 2wds,so....?? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-20-2005, 06:26 AM	#10
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,513	Re: 6 Cylinder in a 4x4? Custom/10: PM sent __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

12-16-2005, 10:12 AM	#12
70blazerpickup Registered User Join Date: Apr 2005 Location: bernardston ma Posts: 33	Re: 6 Cylinder in a 4x4? the small block crossmember and the inline 6 cross members are the same. i had a 250 6 and i pulled it out and dropped a 350 right in. the only thing i had to change was the clutch linkage and the throttle linkage.

12-16-2005, 04:08 PM	#13
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,513	Re: 6 Cylinder in a 4x4? The 292 L6 required its own unique [almost diagonal] crossmember in 4wd only. The C/series could use the regular frame rails. 292s have an off-center mount configuration -- GM moved the passenger-side motor mount forward, maybe to counteract the greater torque of the 292 (?) -- the fuel pump went to the center where the motor mount was on the 230/250s. The smaller L6s had symmetrical mounts. On the 2wd the more forward right hand mount can connect to the frame rails, on the 4wd, it needs a special crossmember. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

12-16-2005, 08:08 PM	#14
CraigS Registered User Join Date: Dec 2000 Location: Gresham, OR, USA Posts: 106	Re: 6 Cylinder in a 4x4? I currently have a 454 in my '72 4x4 and am thinking of a turbo 292. Does it really need a new crossmember or can't I just fab up mounts and weld them to the frame? __________________ 72 GMC K20, 454, TH350 00 GMC Yukon 66 Ford Bronco

12-17-2005, 06:17 AM	#15
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,513	Re: 6 Cylinder in a 4x4? If you can weld, you can fab anything. I was lucky enough to get Custom/10's 292 crossmember, so I can get nearer to a factory style install. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

02-11-2006, 07:04 PM	#16
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Since 73up(-87/91?) GM light truck, V8 engine crossmembers bolt into 67-72 4x4s with just a little drilling and trimming, wouldn't 73up 292 4x4 crossmembers also bolt in? IOW, wouldn't obtaining a 292 engine crossmember for a 67-72 4x4 only entail a simple junkyard search for a GM, 292-equipped pickup or burb? Missing the 292, of course. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

02-12-2006, 05:00 AM	#17
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,513	Re: 6 Cylinder in a 4x4? I couldn't tell ya pal. For me the Chevy Truck world is flat -- bounded on the East by 1967 and stretching far to the West until 1972. The rest is a mystery, but I've heard if you go beyond that you fall off the edge. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.



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02-15-2006, 02:21 PM	#18
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	Re: 6 Cylinder in a 4x4? Would just like to chime in, my truck has a 250 in it.....and in the mud the column shifter, and the L6 make for an awesome combination(real quick r-1st shifts...and not bogged down in the front end). I have a custom built 250 in the garage waiting its chance to tear up some mud as well......I would have gone with a 292 for torque, but the price for the built 250 was too good to pass up. __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

02-28-2006, 10:10 AM	#20
1967k30 Senior Member Join Date: Sep 2005 Location: NE Posts: 363	Re: 6 Cylinder in a 4x4? I too an considering going to a 292 w/ a Clifford kit. But was wondering what kind of power I will have? I'm also getting a 402,just because the price was right . I need to decide which to run. I currently have a gutless 350 that burns an unreal ammount of fuel . __________________ 01 2500 Duramax,6spd,4x4,Not stock. Estimated 550rwhp/1100rwfp on fuel only. 03 3500 Duramax,6spd,4x4,Pac-Brake,not stock Estimated 500rwhp/1000rwfp fuel only 67 K10 in many pieces Little Brothers truck 67 K20 Cummins 12V/NV4500/205, D60/Eaton w/ Detroit,37" Xterrains,crossover steering, Future plans,Twins and lots of fuel.

03-03-2006, 03:19 AM	#21
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,513	Re: 6 Cylinder in a 4x4? 1967K/30: I would suggest an Offy intake instead of the Clifford. The Offy is reputed to be better at low RPMs and low end torque as you find in trail running, the Clifford intake is more designed to flow better at high RPMs, such as one encounters when dragging a 1/4 mile. Clifford headers do rule however. I'm still using a pair I bought in 1978 on my '68 Stepside. Second engine, some repairs -- resectioned crushed #5 downtube, resurfaced intake flange, but more or less the same pipes. I use an Offy intake, Edelbrock 500 CFM 1404 Carb, and Clifford headers on my 292. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

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