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11-04-2009, 02:51 PM
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#1 |
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Registered User
Join Date: Aug 2009
Location: Burlington, WI
Posts: 52
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348 motor swap?
Anybody swapped a 348/409 motor into their SBC equipped truck? I've got a decent running crate 350 in mine, but a friend wants to swap a fresh 348 for an ATV I have. Always been a fan of the ugly W motor... so I'm thinking it would be a cool little swap. All motor / tranny stuff shouldn't be a problem... what about mounts, etc? My 62 still has the old-school front mount and the bell housing mount.
Thanks in advance Bob Last edited by bob-n; 11-04-2009 at 03:05 PM. |
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11-04-2009, 04:24 PM
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#2 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
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Re: 348 motor swap?
I am not sure about the 62 but on a 63-66 truck, you would need big block perches/mounts I believe, and the frame would have to be narrowed for them. If you look at a 67-72 frame, the frame is narrowed right at the motor perch bolt holes, it actually runs about 8" before and after. If you changed to a modern fuel injected 4.8/5.3/6.0 it would be the same thing so the headers/ex-manifolds would work.
__________________
Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684  support our troops! |
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11-04-2009, 04:36 PM
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#3 |
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Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: 348 motor swap?
I say go for it. That is a swap I have always wanted to do. A Big window 62-63 shortbed with a W-motor.
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11-04-2009, 04:56 PM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Burlington, WI
Posts: 52
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Re: 348 motor swap?
Hmmm... mounts are easy... have welder, will travel!
I read that the center dump manifolds between W motor and SBC drop exhaust in exactly the same place, so that is easy. Tough decision. |
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11-04-2009, 06:41 PM
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#5 |
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Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: 348 motor swap?
Do it!
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11-04-2009, 07:20 PM
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#6 |
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1961 crewcab
Join Date: Dec 2007
Location: missoula, mt
Posts: 6,164
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Re: 348 motor swap?
do it, mounts are probably similar to the sbc/bbc side mount, issues would be where does the manifold dump?, would it dump right into the frame rail?, fenderwell headers would cure that if that is a problem!
also you might need to bang the firewall out a little bit, then again maybe not. here are some pics of a 409 in a big truck, I think they sit a little lower in a big truck...
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60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955 |
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11-05-2009, 03:05 AM
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#7 |
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Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: 348 motor swap?
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11-06-2009, 07:11 PM
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#8 |
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Airport Bum
Join Date: Jan 2005
Location: Propwash (16Xray) D/FW, Texas
Posts: 320
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Re: 348 motor swap?
Do it!
One day I'll squeeze a 340 horse 409 w/3 2gc's in my '64. I grew up in Impala's w/409's Oh, and what choo callin' ugly?
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1964 Chevrolet C-10 1941 Chevrolet coupe 1962 Thunderbird 1959 Edsel Villager 1963 Skylark |
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11-06-2009, 07:30 PM
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#9 |
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Senior Member
  
Join Date: Nov 2008
Location: Glendora, CA
Posts: 6,344
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Re: 348 motor swap?
My Dad had a sweet running 283 in his 59 long bed Fleetside when I was growing up. He swapped in a 348 and that truck screamed....at least to my then-little boy senses.
I have a swwet spot for a 348/409. If I could have one I would instead of a perfectly fine, but run-of-the-mill 350 SBC |
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