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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 84chevysilverado on September 23, 2009, 08:15:32 pm

Title: automatic or manual
Post by: 84chevysilverado on September 23, 2009, 08:15:32 pm
What are your thoughts on this idea. I have an 84 C10 and am currently building a 350 with hopefully 300 hp when done. Right now the truck has a bone stock 700R4 tranny and I plan on putting in a 4 or 5 speed manual in the 700R4's place because i dont think the automatic will hold up to this power and its starting to slip. I'm not going to throw out the 700R4 but keep it for another project. So I guess my question is are there any major issues putting a manual in place of an auto? or should I just get the automatic rebuilt?  lets hear your 2 cents thanks marc  :D
Title: Re: automatic or manual
Post by: VileZambonie on September 23, 2009, 08:19:17 pm
Rebuild the 700R4, 300HP is nothing for an upgraded 700R4
Title: Re: automatic or manual
Post by: Captkaos on September 24, 2009, 12:30:21 pm
500HP is nothing for a upgraded 700R4, which anything short of a T56 or Richmond or Tremec will not handle it if your talking 5 speeds, and 4 speeds I wouldn't even consider if it is going to be a driver.
Title: Re: automatic or manual
Post by: 84chevysilverado on September 30, 2009, 08:25:11 pm
alrighty il stick with the 700r4. now another question should I invest in a new torque converter possibly one with a higher stall speed? thanks marc
Title: Re: automatic or manual
Post by: screamin86 on September 30, 2009, 09:04:15 pm
Yes on the converter but it all needs to be matched for what you plan to do with the truck! Call up some companys that build converters and give them you motor specs and truck specs and what your intentions are for it and they will build you one or recomend you one!
Title: Re: automatic or manual
Post by: Captkaos on October 01, 2009, 02:55:51 pm
As Screamin86 stated, you want the torque converter stall to match you application.  If you are going for 300hp crank power the stock one will be ok.
Title: Re: automatic or manual
Post by: screamin86 on October 12, 2009, 04:28:21 pm
Just dont go too nuts with the cam