350 sbc to 400 sbc
Thread Starter
Junior Member
Joined: Jan 2011
Posts: 1
Likes: 0
From: Fort Carson Colorado, The car is back home in davenport Iowa
Car: 1990 Trans am GTA
Engine: 350 tpi
Transmission: 700r4
350 sbc to 400 sbc
looking to replace my 350 tpi for a 400 small block in my 90 trans am gta. has anyone on here done this. if so what proplems have they come across with it, i plan on swaping over to a carb also, any input will be appreciated.
Supreme Member
Joined: Feb 2006
Posts: 1,366
Likes: 1
From: St.Louis, IL
Car: 1988 Camaro
Engine: 377
Transmission: TH350; Circle D 4200 converter
Axle/Gears: Ford 9"
Re: 350 sbc to 400 sbc
There's not really much to it IMO, but make sure you give your radiator an upgrade for that increase in cubes. Also - are you using the original 400 sbc heads? if not, you'll need to have them drilled for the steamholes.
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