I am building my first race car and going to be going to a swap meet real soon to get some parts i need an engine block and looking for a tranny im interested in a bare 350 block or if i could find one would it be better to go with a 400 block and im looking at a th400 trans. i just want to know what to look for in buying a used block and trans. I am hopefully going to be looking at 500 -600hp and i was woundering if i should get a factory 4 bolt main or get a 2 bolt and get splayed caps.

thanks

 

the 350's the 4 bolt mains are stronger (if you dont feel like paying for splaying..... hey, that kinda rhymed ). The 400's the 2 bolt mains are stronger.

If I was you, I'd try to find a 2 bolt 400, and stroke the engine... 500-600RWHP is easier to achieve with more cubes, of course

 

what type of intake are you going to run? thats alot of hp for your first build.

 

i'm not really sure yet i was going to put a 6-71 on it but since its my first build i was thinking of a high hp n/a set up i just want to get the block and go from there that was just a guess on the hp i just want a good 10-11 sec car i now i'm going to do it an all forged bottom some afr heads not sure which ones yet. and i really havent thaught about the intake cam or carb. But i was thinking about a tunnel ram do you think that would be a good.

 

2 bolt 400 all the way, I don't think you can go wrong.
The only reason I didn't get a 400 is becasue the stuff to build them is more expensive, plus I wasn't after that much power.

 

2 bolt main and splay it. Check the bore too. If I were dealing with that much power I would only deal with a virgin bore. Preferably an aftermarket block.

 

i heard that a used 350 block could run from 50-200 bucks but how much more would a 400 cost.