c3vettelover

Eventually I want to replace my 350 with a SB 400 (2 bolt mains). I need some input on what vehicles these were produced in to begin my search. I've tried searching the forums but either I just don't get it......or I just don't get it!? :confused:

Hope I'm not beatin' a dead horse for everyone reading this....

Thanks for the input

Metal Wulf

why a 2 bolt ?

c3vettelover

From what I've been reading it's my understanding the 2 bolt block, stock, is stronger than a stock 4 bolt. So I figure if I don't have either at this point I can be picky...... :yesnod:

Fevre

:iagree: I read that also when it comes to the 400, better off with a 2 bolt and have it fitted with aftermarket 4 bolt mains if you are going to get real crazy with it.

The Dude

Two-bolt 400 blocks are stronger out of the box than four-bolt 400s. And two-bolt 400 blocks retrofitted with aftermarket splayed four-bolt caps, align-honed and assembled with a slightly oversized rear main seal manufactured by Fel-Pro specifically for the application is about as strong as you're going to get.

If you want to buy a core from a salvage yard car, look for 1970s-era full size Chevys like Impala, Caprice and similar.

Here's a tip, though. Get a copy of the local Auto Trader or whatever. Look at the ads from those places that sell the garbage $600 short blocks. Call them and tell them you want to buy a 2-bolt 400 SBC block from them BEFORE THEY DO ANY MACHINE WORK to them. Go and look. You will see lots of junk and you will get a real good idea as to why $600 replacement short blocks are $600 replacement short blocks. But you might score.

I did this about 3 years ago. I went to probably four places before I found a shop that had a couple of virgin blocks. Since they both mic-ed out as "good," I bought 'em BOTH for $175--Built one and kept one as a spare. Today I wouldn't sell my spare block for anything less than $400. (That's what they're going for around here as of a couple of months ago.)

Good luck.

1LE

Early 70's Monte Carlos too.

joe73vette

72-76 station wagons
some pickup trucks, too

phxraptor

I found 3 at 2 core supply builders. One was 40 over no good but the other 2 are standard bore. He wants $250 not too bad ! One will become my 406. :cool: :cheers: :seeya 2 bolts by the way. will have them splayed.


[Modified by phxraptor, 8:39 PM 8/12/2003]

ddecart

Might find some casting number info here: http://www.mortec.com/

stinky

Find one in my basement. :D