Just bought a 67 GMC SB - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Keep on Trukin · 08-01-2003, 02:30 PM

Just bought a 67 GMC, and i wanted to change out the 6er to an 8ter how difficult is it going to be? Is it something a shade tree mechanic can do? Great Message Board!!!

krue · 08-01-2003, 02:35 PM

Welcome to the board from South Mississippi!
Post some pics of your truck!
I swapped a 350 in place of a 250 back when I was a kid, so it can't be too hard! Been a long time, but there are lots of people who can help you!

1971 Cheyenne · 08-01-2003, 02:46 PM

PICS PICS PICS!!!!

dubie · 08-01-2003, 02:50 PM

I am in the middle of doing the 250 to a 350 swap. Check this link for the things you will need

http://67-72chevytrucks.com/vboard/s...threadid=62890

Oh, and we LOVE pics!!

ChevLoRay · 08-01-2003, 02:59 PM

WELCOME!

You can put any gas engine that you want, in the engine bay. There is plenty of room (within reason, of course). But, for ease of installation, any GM engine ever installed into a Chevy, will fit, and more, besides. The only real limitation, is $$$$$$$.

Good luck.

Keep on Trukin · 08-01-2003, 04:25 PM

Thanks for making me feel so welcomed, i just happen to stumble on this great website.....glad i did. Yes pictures are coming soon.
Cant right now im at work, but will monday. It seems like i can probably.. correction i CAN do it myself.

Thanks again, for the great advice.
One more question, should i keep the 6 lugs or change to the 5 lugs, is it more of a personal thing?

Keep on Trukin

wnc mountain · 08-01-2003, 04:31 PM

On that question, I would say it depends on what you want. If you are going to run factory rims or rallies there is no point in changing. If you want aftermarket then you may want to consider seeing that there are many more choices for the 5 on 5 bolt pattern to choose from. Good luck!
Oh yea...WELCOME TO THE BOARD!!!!

*Gee_Emm* · 08-01-2003, 06:30 PM

Congrats

It wouldnt happen to have A/C would it?

Denny · 08-01-2003, 11:55 PM

Welcome to the board. Good luck with your new truck.

ChevLoRay · 08-02-2003, 12:04 AM

I have a '69. I did a disc brake conversion and kept the 6-lug pattern because I already had a good set of aluminum wheels. Also, I thought it might be thought-provoking to those who knew that '69's didn't come with disc brakes. However, disc brakes have been standard equipment for so long, nobody notices.

The only problem, which isn't really a problem, is that the conversion adds to the front track (width between hubs). The rear axle from '70, is wider, and the 71 and 72 rear axles both have 5 lugs, as do the fronts. I used Early Classic Enterprises components, and all I have to do to convert the front to 5-lugs, is put on a pair of replacement GM rotors. Well, that and carry two spares.

08-01-2003, 02:30 PM	#1
Keep on Trukin Registered User Join Date: Aug 2003 Location: Ft. Worth Posts: 71	Just bought a 67 GMC SB Just bought a 67 GMC, and i wanted to change out the 6er to an 8ter how difficult is it going to be? Is it something a shade tree mechanic can do? Great Message Board!!!

08-01-2003, 02:35 PM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Welcome to the board from South Mississippi! Post some pics of your truck! I swapped a 350 in place of a 250 back when I was a kid, so it can't be too hard! Been a long time, but there are lots of people who can help you! __________________ "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"

08-01-2003, 02:46 PM	#3
1971 Cheyenne Registered User Join Date: Nov 2002 Location: Bellevue, WA Posts: 1,480	PICS PICS PICS!!!! __________________ Brian Pal 1971 Cheyenne 10 454/th400-Undergoing a full frame off resto. 1972 Chevy short/step 2wd, 350/th350 1983 M1009 CUCV Military K5 Blazer 1981 Dodge 1 ton 4x4 dually flatbed

08-01-2003, 02:50 PM	#4
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,853	I am in the middle of doing the 250 to a 350 swap. Check this link for the things you will need http://67-72chevytrucks.com/vboard/s...threadid=62890 Oh, and we LOVE pics!! __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

08-01-2003, 02:59 PM	#5
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	FRom the HEART of Arkansas... WELCOME! You can put any gas engine that you want, in the engine bay. There is plenty of room (within reason, of course). But, for ease of installation, any GM engine ever installed into a Chevy, will fit, and more, besides. The only real limitation, is $$$$$$$. Good luck. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

08-01-2003, 04:25 PM	#6
Keep on Trukin Registered User Join Date: Aug 2003 Location: Ft. Worth Posts: 71	Thank you! Thanks for making me feel so welcomed, i just happen to stumble on this great website.....glad i did. Yes pictures are coming soon. Cant right now im at work, but will monday. It seems like i can probably.. correction i CAN do it myself. Thanks again, for the great advice. One more question, should i keep the 6 lugs or change to the 5 lugs, is it more of a personal thing? Keep on Trukin

08-01-2003, 04:31 PM	#7
wnc mountain More hobbies than money! Join Date: Jan 2002 Location: Raleigh, nc, usa Posts: 655	On that question, I would say it depends on what you want. If you are going to run factory rims or rallies there is no point in changing. If you want aftermarket then you may want to consider seeing that there are many more choices for the 5 on 5 bolt pattern to choose from. Good luck! Oh yea...WELCOME TO THE BOARD!!!! __________________ '70 cst10/swb 350, 3 on the tree, factory buckets. '70 GMC lwb 350/350 ps,pb '72 c-10 lwb 350/350 a/c, ps, pb '72 Blazer project

08-01-2003, 06:30 PM	#8
Gee_Emm Account Suspended Join Date: Sep 2000 Posts: 3,991	Congrats It wouldnt happen to have A/C would it?

08-01-2003, 11:55 PM	#9
Denny Registered User Join Date: Jul 2002 Location: Cedar Hill, MO Posts: 426	Welcome to the board. Good luck with your new truck. __________________ 1969 Chevy C10. Dakota Digital Gauges, 383 Votex Engine, MSD 8361 Distributor, MSD 6A Unit, Demon Carb, Phoenix Transmission 4L80E trans, 3:73 Posi Rear End Early Classics 6 Lug Disc Brakes and Spindles All Stainless Lines

08-02-2003, 12:04 AM	#10
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	6 or 5 lugs, that is the Question... I have a '69. I did a disc brake conversion and kept the 6-lug pattern because I already had a good set of aluminum wheels. Also, I thought it might be thought-provoking to those who knew that '69's didn't come with disc brakes. However, disc brakes have been standard equipment for so long, nobody notices. The only problem, which isn't really a problem, is that the conversion adds to the front track (width between hubs). The rear axle from '70, is wider, and the 71 and 72 rear axles both have 5 lugs, as do the fronts. I used Early Classic Enterprises components, and all I have to do to convert the front to 5-lugs, is put on a pair of replacement GM rotors. Well, that and carry two spares. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.



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