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12-01-2013, 07:42 PM | #1 |
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Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
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Swapping from a V8 to an L6...
I'm going to be putting an L6 in my '67 2WD Suburban, and while I'm not interested in making the conversion "correct" I'm in a quandary as to exactly how many things have to be changed to accommodate the L6. I know I need a different Z bar, the brackets between the engine block and motor mounts, and if the 6 cyl. fan won't fit in the V-8 fan shroud I'll just leave the shroud off. But after searching the forum I can't find any definite explanation if, on a 2WD, the bell housing crossmember has to be moved for the swap. Can the BH stay in the same place and just the motor mount "perches" be moved forward? Will the I-6 clear the radiator with the BH in the V-8 position?
Thanks in advance.
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Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
12-03-2013, 03:47 AM | #2 |
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Join Date: Mar 2013
Location: Campbellsville, KY
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Re: Swapping from a V8 to an L6...
Any advice on this?
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Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
12-03-2013, 10:06 AM | #3 |
Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Swapping from a V8 to an L6...
I'm pretty sure the whole point of having different engine stands (the part that bolts to the frame and cross member) was so that different engine configurations bolted up to the trans in the same spot, so now, the trans mounts and drive shafts could all be the same. I did my I6 to v8 conversion over 10 years ago so it's all fuzzy, but if you get the correct I6 mounts you shouldn't have to touch the trans. I do seem to recall there were different mounts for the 250 and 292, I think the difference was on the PS? Not 100% on that. So, basically, you need a set of I6 mounts.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
12-03-2013, 10:48 AM | #4 |
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Join Date: Jan 2005
Location: Ontario, Kali
Posts: 2,427
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Re: Swapping from a V8 to an L6...
There is a difference in the manual transmission cross members.
There is an L6 xmember, a sbc xmember, and a bbc xmember. I don't know if you could use a v8 xmember with an L6 or not. Just thought I'd let you know. Dano
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'69 Fleet It ain't yours, if you didn't build it! |
12-03-2013, 11:29 AM | #5 |
Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Swapping from a V8 to an L6...
That I did not know. Now that's a pain in the butt because they're riveted in.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
12-03-2013, 05:34 PM | #6 |
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Join Date: May 2010
Location: ventura county CA
Posts: 9
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Re: Swapping from a V8 to an L6...
I just did this swap from a sb 307 to a 250 about two weeks ago. I used the sb perches in the sb position and left the trans crosmember and driveline where they were with the sb. I had to make a new zbar setup and the engine sits too close to the radiator to use a mechanical fan. but it all works without moving or changing any mounts. I am planning on going back to a sb eventually so I decided not to change stuff around.
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12-04-2013, 02:57 AM | #7 | |
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Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
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Re: Swapping from a V8 to an L6...
Quote:
Thanks for your help, everyone. 'Least now I know for future reference!
__________________
Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
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