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12-16-2009, 08:27 PM
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#1 |
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Registered User
 
Join Date: Dec 2008
Location: New England
Posts: 661
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292 to 350 engine swap, I don't need a different crossmember do I?
I started breaking down my chassis today, it's a 68 GMC 4x4 SWB that I'm turning into a 70 Chevy 4x4 SWB. The current engine is getting yanked out but while I was pulling drive shafts and shocks and other stuff, I noticed the motor mounts on the 292 have stands and all kinds of stuff. Once I yank this engine, I can just buy 350 motor mounts and be done right or no? Also, with the 292 to 350 swap will the placement of the tranny and t/case stay in the same place?
Happy Holidays, Patsy! Last edited by Patsfan34; 12-16-2009 at 08:28 PM. |
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12-16-2009, 10:27 PM
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#2 |
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Registered User
Join Date: Sep 2003
Location: Franconia,N.H.
Posts: 1,029
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Re: 292 to 350 engine swap, I don't need a different crossmember do I?
i believe you are going to need a different one for a small block.
yes the transmission and transfer case will stay in the same place because the engine mounts in a different spot to keep the driveshafts the same.
__________________
(Only) Member of the CPNE Fan Club  Aint that the truth 67 C-10 350 with 3-speed tranny and 308 gears swb step  82 Z28 Camaro 355 small block over 350 hp and a borg warner super t-10 (blown engine) 72 Chevy K20 Suburban (future project) 70 Chevy K20 now 68 GMC K2500 2003 Chevy 2500hd ccsb 4X4 (daily driver) |
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12-16-2009, 11:44 PM
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#3 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 292 to 350 engine swap, I don't need a different crossmember do I?
I believe the 292 crossmember is unique.
__________________
"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 ~ |
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12-17-2009, 09:34 AM
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#4 |
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Registered User
Join Date: Dec 2008
Location: New England
Posts: 661
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Re: 292 to 350 engine swap, I don't need a different crossmember do I?
Will I be able to use the crossmember that the 350 is sitting on right now? The truck is a C-10 2WD. There's no difference in the 2wd 350 crossmember when swapping to 4x4 chassis is there?
Last edited by Patsfan34; 12-17-2009 at 09:35 AM. |
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07-20-2010, 05:11 PM
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#5 |
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Registered User
Join Date: Apr 2000
Location: Freeland,Michigan,USA
Posts: 312
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Re: 292 to 350 engine swap, I don't need a different crossmember do I?
Do you still have the 292 4x4 cross member and mounts?
__________________
1968 SWB Stepside, 250,pwr disc brake and tilt pwr steering, 5 spd tranny, HEI,Accel coil,K&N filter,Seat from a later truck with built in seatbelts, front and rear sway bars, moved gas tank to under the bed, headman hedders, new chrome bumpers,one wire alternator,Weber k550cub carburator...WORK IN PROGRESS, Freeland MI , Just bought a 72 Jimmy!!!!!!!!!!! |
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09-03-2010, 01:31 AM
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#6 |
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Registered User
Join Date: Dec 2004
Location: NW, WA.
Posts: 1,421
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Re: 292 to 350 engine swap, I don't need a different crossmember do I?
The 292 4x4 cross member is offset to match the mounts on the motor. Top pic
The 250 & V8 4x4 cross member is straight across. Center Pic FYI 2wd trucks do not use a motor mount cross, the base of the mounting towers bolt directly to the front axle/cross member since it does not move. (See yellow arrow in bottom pic) |
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