1969 chevy to 1965 gmc swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fearnatine13 · 07-20-2006, 05:54 PM

Hey all...
I have an opportunity to purchase a 1965 gmc truck for $800. the truck is in really good condition, whereas my current 69 is in horrendous condition. it would take me well over $800 to restore my '69, so i was wondering how difficult an engine and tranny swap would be for this. I'm thinkin header clearance and the such. I have the facilities to do the swap, just wonderin about sizing issues. I have a 350 sb and a 350 th tranny. Thanks!

Sweet72 · 07-20-2006, 08:08 PM

Man, for $800 you can't go wrong if it's solid. Your 350/350 combo will be fine in the '65. Don't know what headers you have but these Hookers will fit '63 to '72 pickups... http://store.summitracing.com/partde...7+4294840140+0

tom71 · 07-20-2006, 09:25 PM

your 69 will use the frontmost motor mount holes in the frame and cross member the 65 will use the rearward holes in the cross member and frame that s all i can think of shouldnt be a problem the frames are the same except for the motor mount stands . (as far as i know )

fearnatine13 · 07-21-2006, 12:55 PM

the headers i have are full length dynomax ceramic coated headers that i have no clearance issues with on my 69. As for the engine mounts, how do i rectify that situation? can i just move the motor mounts? (i'm kinda new at this...in case you couldn't tell.)

tom71 · 07-21-2006, 03:23 PM

well if the 65 has motor stand s use those if it doesnt then you have to find some for that truck i might be able to get some for you . the ones in your 69 will not work i ran into this problem when i swapped frames . come to think of it i have a set of those motor stands but they are powder coated blue . or you get a set of tubular motor stands and convert to the clamshell style motor mounts ccp has a kit i believe so do some other vendors i bought some from a different company before the ccp ones came out , and the ccp ones look much nicer than the ones i have i also just noticed you are in santa ana i am up there all the time , let me know if you want those motor stands they are collecting dust

**Bob B.** · 07-21-2006, 03:24 PM

What's in the '65?

fearnatine13 · 07-21-2006, 05:02 PM

right now a inline 305 and 4 speed tranny. Im gonna trade the tranny to my friend for helpin me with the swap. The 305 needs to be rebuilt so i'll probably sell it and just see what i can get for it. Tom, i'd love to get those motor mounts from you. PM me and let me know the next time you're gonna be up here and i'll try to work it out.

**Bob B.** · 07-21-2006, 08:39 PM

The 305 was a V-6, not an in-line. If it is an in-line, it's probably a 292.

fearnatine13 · 07-21-2006, 09:01 PM

You're absolutely right, it is just a v-6 not an inline. but the fact it needs to be rebuilt, and i have a brand new just broken in 350 in my current truck makes me just want to do the swap.

**Bob B.** · 07-22-2006, 04:29 AM

That would make the swap more complicated. The motor mount towers are completely different that the V-8 or straight 6 towers. The V-6 with a manual transmission has rear mounts on the bell housing. You will need to remove the crossmember under the bell housing and add a crossmember farther back with a transmission mount. But, you shouldn't have any clearance issues. That V-6 is a lot larger (and heavier!) that a small block Chevy. It can be done if you have all the parts. Those V-6's are really quite some engine. Hate to see one replaced with a 350!

07-20-2006, 05:54 PM	#1
fearnatine13 Boondock Saint Join Date: Mar 2006 Location: Santa Ana Posts: 80	1969 chevy to 1965 gmc swap Hey all... I have an opportunity to purchase a 1965 gmc truck for $800. the truck is in really good condition, whereas my current 69 is in horrendous condition. it would take me well over $800 to restore my '69, so i was wondering how difficult an engine and tranny swap would be for this. I'm thinkin header clearance and the such. I have the facilities to do the swap, just wonderin about sizing issues. I have a 350 sb and a 350 th tranny. Thanks! __________________ And shepards we shall be For Thee my Lord for Thee Power hath descended forth from Thy hand That our feet may swiftly carry out Thy command So we shall flow a river forth to Thee And teeming with souls shall it ever be En nomine Patris, et Filii, et Spiritus Sancti

07-20-2006, 08:08 PM	#2
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	Re: 1969 chevy to 1965 gmc swap Man, for $800 you can't go wrong if it's solid. Your 350/350 combo will be fine in the '65. Don't know what headers you have but these Hookers will fit '63 to '72 pickups... http://store.summitracing.com/partde...7+4294840140+0 __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

07-20-2006, 09:25 PM	#3
tom71 what happened to flint mi Join Date: Oct 2005 Location: san diego Posts: 436	Re: 1969 chevy to 1965 gmc swap your 69 will use the frontmost motor mount holes in the frame and cross member the 65 will use the rearward holes in the cross member and frame that s all i can think of shouldnt be a problem the frames are the same except for the motor mount stands . (as far as i know ) __________________ 71 swb 2wd fleet frame off in progress 72 4x4 blazer daily driver 70 olds cutlass s mint condition owned by a grandma 56 gmc 2wd project waitng 97 fiance mobile

07-21-2006, 12:55 PM	#4
fearnatine13 Boondock Saint Join Date: Mar 2006 Location: Santa Ana Posts: 80	Re: 1969 chevy to 1965 gmc swap the headers i have are full length dynomax ceramic coated headers that i have no clearance issues with on my 69. As for the engine mounts, how do i rectify that situation? can i just move the motor mounts? (i'm kinda new at this...in case you couldn't tell.) __________________ And shepards we shall be For Thee my Lord for Thee Power hath descended forth from Thy hand That our feet may swiftly carry out Thy command So we shall flow a river forth to Thee And teeming with souls shall it ever be En nomine Patris, et Filii, et Spiritus Sancti

07-21-2006, 03:23 PM	#5
tom71 what happened to flint mi Join Date: Oct 2005 Location: san diego Posts: 436	Re: 1969 chevy to 1965 gmc swap well if the 65 has motor stand s use those if it doesnt then you have to find some for that truck i might be able to get some for you . the ones in your 69 will not work i ran into this problem when i swapped frames . come to think of it i have a set of those motor stands but they are powder coated blue . or you get a set of tubular motor stands and convert to the clamshell style motor mounts ccp has a kit i believe so do some other vendors i bought some from a different company before the ccp ones came out , and the ccp ones look much nicer than the ones i have i also just noticed you are in santa ana i am up there all the time , let me know if you want those motor stands they are collecting dust __________________ 71 swb 2wd fleet frame off in progress 72 4x4 blazer daily driver 70 olds cutlass s mint condition owned by a grandma 56 gmc 2wd project waitng 97 fiance mobile Last edited by tom71; 07-21-2006 at 03:24 PM.

07-21-2006, 03:24 PM	#6
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,381	Re: 1969 chevy to 1965 gmc swap What's in the '65? __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

07-21-2006, 05:02 PM	#7
fearnatine13 Boondock Saint Join Date: Mar 2006 Location: Santa Ana Posts: 80	Re: 1969 chevy to 1965 gmc swap right now a inline 305 and 4 speed tranny. Im gonna trade the tranny to my friend for helpin me with the swap. The 305 needs to be rebuilt so i'll probably sell it and just see what i can get for it. Tom, i'd love to get those motor mounts from you. PM me and let me know the next time you're gonna be up here and i'll try to work it out. __________________ And shepards we shall be For Thee my Lord for Thee Power hath descended forth from Thy hand That our feet may swiftly carry out Thy command So we shall flow a river forth to Thee And teeming with souls shall it ever be En nomine Patris, et Filii, et Spiritus Sancti

07-21-2006, 08:39 PM	#8
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,381	Re: 1969 chevy to 1965 gmc swap The 305 was a V-6, not an in-line. If it is an in-line, it's probably a 292. __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

07-21-2006, 09:01 PM	#9
fearnatine13 Boondock Saint Join Date: Mar 2006 Location: Santa Ana Posts: 80	Re: 1969 chevy to 1965 gmc swap You're absolutely right, it is just a v-6 not an inline. but the fact it needs to be rebuilt, and i have a brand new just broken in 350 in my current truck makes me just want to do the swap. __________________ And shepards we shall be For Thee my Lord for Thee Power hath descended forth from Thy hand That our feet may swiftly carry out Thy command So we shall flow a river forth to Thee And teeming with souls shall it ever be En nomine Patris, et Filii, et Spiritus Sancti

07-22-2006, 04:29 AM	#10
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,381	Re: 1969 chevy to 1965 gmc swap That would make the swap more complicated. The motor mount towers are completely different that the V-8 or straight 6 towers. The V-6 with a manual transmission has rear mounts on the bell housing. You will need to remove the crossmember under the bell housing and add a crossmember farther back with a transmission mount. But, you shouldn't have any clearance issues. That V-6 is a lot larger (and heavier!) that a small block Chevy. It can be done if you have all the parts. Those V-6's are really quite some engine. Hate to see one replaced with a 350! __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.



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