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Old 08-31-2006, 01:11 AM   #1
longorange68
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Exclamation Sm465

Looking to upgrade/strengthen this tranny. How much should I pay? How much horsepower/torque should it handle? I am planning on going with a mildly built SB 400 with vortec heads, so 400 horse, 500 ft/lbs TQ. Can it handle it? What are your thoughts? I am an AOD guy looking to make this into a manual/Gear Vendors OD combo. Let me know, I value your opinion......


Josh
Longview, Wa
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1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears

Good judgment comes from experience, and experience, well......that comes from bad judgment.


1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.
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Old 08-31-2006, 08:51 AM   #2
lilred67
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Re: Sm465

i don't know what you could do to upgrade a sm465,they are tuff as heck stock.it will handle a bb or a built sb without any problems.
i had a sm465/gear vendors OD combo behind a banks turbo charged 6.2l diesel,and it was sweet!!!!8 speeds...........
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Old 08-31-2006, 10:20 AM   #3
tom71
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Re: Sm465

i agree our tranny guy told me the sm465 is bullet proof
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Old 08-31-2006, 10:23 AM   #4
kwmech
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Re: Sm465

Depending on the year of the trans, there is an upgrade with the counter shaft to prevent the moving of a gear. The removal of a snap ring and the install of a sleeve
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Old 08-31-2006, 04:34 PM   #5
wolfthing2000
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Re: Sm465

Do remove the snap rings and buy or have a machinist make a spacer for the front gear on the countershaft. Also there are certain synchros and clutch sleeves and shafts that are stronger for the hard gear jammers ( off road stuff) . do a google search and you will run across this stuff.
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Old 09-01-2006, 11:30 PM   #6
longorange68
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Re: Sm465

Does anybody have any websites to check? I am looking but having a little trouble, that and I am a little computer stupid.
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1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears

Good judgment comes from experience, and experience, well......that comes from bad judgment.


1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.
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Old 09-02-2006, 02:30 AM   #7
Brad
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Re: Sm465

I have an NP435 that I'm trying to get rid of if you're interested. Just thought I'd give you another option.
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1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red
1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!)
2000 Honda VFR in the faster yellow!
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1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

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Old 09-02-2006, 11:45 AM   #8
kwmech
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Re: Sm465

Quote:
Originally Posted by wolfthing2000 View Post
Do remove the snap rings and buy or have a machinist make a spacer for the front gear on the countershaft. Also there are certain synchros and clutch sleeves and shafts that are stronger for the hard gear jammers ( off road stuff) . do a google search and you will run across this stuff.
You can get the sleeve from GM for about 5-6 bucks
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Old 09-02-2006, 06:48 PM   #9
longorange68
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Re: Sm465

Quote:
Originally Posted by longorange68 View Post
Does anybody have any websites to check? I am looking but having a little trouble, that and I am a little computer stupid.
Anybody got any sites to look over? Anybody? Kinda hit a wall here.
__________________
1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears

Good judgment comes from experience, and experience, well......that comes from bad judgment.


1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.
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Old 09-02-2006, 07:27 PM   #10
john
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Re: Sm465

Heres some reading material from google search.

http://www.google.com/search?hl=en&q...=Google+Search
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Old 09-02-2006, 09:57 PM   #11
kwmech
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Re: Sm465

If you click on the above link and go to Novaks site, #45 is what I am talking about
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