Help!! 250 to 350 swap, transmission issue! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Root_Drum_Co · 06-12-2014, 05:26 PM

Hey guys, I haven't been on in a while, but when it came to this issue, i thought "I know the perfect guys to ask!". ANY advice is greatly appreciated! I am swapping my dead 250 l6 for a 350 small block. Its out of a 73 nova. my 250 had a 3 on the tree soo...

question is.... Can i use a late model chevy 5 speed manual transmission on a mid 70's 350 sbc? What mods will i have to make if any? (driveshaft? clutch? bellhousing? mounts? crossmember? etc..) Would it be better to just find an old 4 speed saginaw or something?

Thanks guys!!!!

**truckdude239** · 06-12-2014, 05:40 PM

i mean the 3 on the tree will still bolt up to the 350 and work fine i had a 327 in the i6 spot with 3 speed i drove for many years like that before i did the ls swap and moved the engine back to the v8 holes

Root_Drum_Co · 06-12-2014, 05:49 PM

Yea, i've been thinking about it. I think i would enjoy a 4 or 5 speed in the floor better. I cooould live with the 3 speed for now IF i could move the shifter from the column, to the floor. Do you know of a way to do that? like a kit or something?

Thanks!!

**truckdude239** · 06-12-2014, 07:26 PM

http://www.summitracing.com/parts/hu...del/c10-pickup

also most auto part stores sell a mr gasket shifter kit for like 60 buxs they are cheapo but work i drove with on for about 3 years

Bigdav160 · 06-12-2014, 07:27 PM

Here ya go:

Hurst Drivelines

**truckdude239** · 06-12-2014, 07:27 PM

mr gasket one

http://www.ebay.com/itm/Brand-New-Mr...p2054897.l4275

burnin oil · 06-13-2014, 09:53 AM

My original post was lost to cyber space so this will be quick. Avoid the Mr Gasket shifter to include Indy brand. The shifter is made of cheap metal and wears quickly. My old 67 had a ratchet shifter that ate the pins. When it worked it was fun but it skipped the rails all the time. I got to the point that I could unbind them in under 30 seconds at a stop light with two pry bars. With a mild 350 I would suggest a saginaw 4spd trans. There are still alot of them out there and cheap. Last one I bought was only $200. A heck of a deal compared to a muncie. You can aford to grenade one every now and then.

06-12-2014, 05:26 PM	#1
Root_Drum_Co Registered User Join Date: Jul 2011 Location: Winder, Georgia Posts: 74	Help!! 250 to 350 swap, transmission issue! Hey guys, I haven't been on in a while, but when it came to this issue, i thought "I know the perfect guys to ask!". ANY advice is greatly appreciated! I am swapping my dead 250 l6 for a 350 small block. Its out of a 73 nova. my 250 had a 3 on the tree soo... question is.... Can i use a late model chevy 5 speed manual transmission on a mid 70's 350 sbc? What mods will i have to make if any? (driveshaft? clutch? bellhousing? mounts? crossmember? etc..) Would it be better to just find an old 4 speed saginaw or something? Thanks guys!!!!

06-12-2014, 05:40 PM	#2
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Help!! 250 to 350 swap, transmission issue! i mean the 3 on the tree will still bolt up to the 350 and work fine i had a 327 in the i6 spot with 3 speed i drove for many years like that before i did the ls swap and moved the engine back to the v8 holes __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

06-12-2014, 05:49 PM	#3
Root_Drum_Co Registered User Join Date: Jul 2011 Location: Winder, Georgia Posts: 74	Re: Help!! 250 to 350 swap, transmission issue! Yea, i've been thinking about it. I think i would enjoy a 4 or 5 speed in the floor better. I cooould live with the 3 speed for now IF i could move the shifter from the column, to the floor. Do you know of a way to do that? like a kit or something? Thanks!!

06-12-2014, 07:26 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Help!! 250 to 350 swap, transmission issue! http://www.summitracing.com/parts/hu...del/c10-pickup also most auto part stores sell a mr gasket shifter kit for like 60 buxs they are cheapo but work i drove with on for about 3 years __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

06-12-2014, 07:27 PM	#5
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Help!! 250 to 350 swap, transmission issue! Here ya go: Hurst Drivelines __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

06-13-2014, 09:53 AM	#7
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,921	Re: Help!! 250 to 350 swap, transmission issue! My original post was lost to cyber space so this will be quick. Avoid the Mr Gasket shifter to include Indy brand. The shifter is made of cheap metal and wears quickly. My old 67 had a ratchet shifter that ate the pins. When it worked it was fun but it skipped the rails all the time. I got to the point that I could unbind them in under 30 seconds at a stop light with two pry bars. With a mild 350 I would suggest a saginaw 4spd trans. There are still alot of them out there and cheap. Last one I bought was only $200. A heck of a deal compared to a muncie. You can aford to grenade one every now and then.



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