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Old 05-16-2011, 09:03 PM
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sbc or bbc?

Here's the thing, I am brand spankin new to the hot rod world. I have a 66 bel air that i am preparing to rebuild. It's running drivin right now. I thought I wanted a sb 350 built up to make the car go faster. like enough power to roast the tires if need be. So for the last few weeks i've researching parts and such. but then tonight i had opportunity to buy a 72 402 bb. I dont have alot of money and dont know which would be a better option. they guy claims it running when it was pulled and had 80k miles on it 2 yrs ago. I have a 350 motor right now to rebuild it's an 010 block with crappy heads.

If i went stock cast iron heads are 993 the better old school heads.

One other thing if someone had cast sb heads off a crate motor would they automatically be good heads

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Old 05-16-2011, 10:55 PM
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WELCOME to the site

As a MODERATOR here ... I want to be the first to WELCOME you.

A 66 Bel-Air is a somewhat large and heavy vehicle.
I would go with the Big Block. Big Blocks make good low end torque and that is what moves a car. 66 Bel-Airs came with the Big Block so installing one is not a major deal.

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Old 05-16-2011, 11:16 PM
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Hi

Welcome to Hotrodders.com Glad to have you with us.

If it's a performance crate engine, it would have better heads then what you have.

As for someone telling you "it ran when I pulled it" if that statement isn't followed by "I was going to use it myself but can't afford" I ignore the statement, & take more time checking the engine.

You've already stated your like most of us here, short on funds. How much is the BB? say $500. For a few dollars more you have enough for a good set of iron heads for your 350.
Take you engine block to the machine shop & find out if you can just hone & clean up the deck. So you'll only need rings, bearings, a gasket set. A new HP camshaft to go along with the new heads. Do a HEI change over. Then when you have saved more money get headers & an intake.
Rich
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Old 05-17-2011, 09:19 AM
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The 350 is more than adequate for what you want to do. Torque is very important for getting a large car moving. Big blocks have that in spades. Small blocks need some help. This is easily done using a more modern OD transmission like the 700R4 and a rear gear of 3.42 to 3.73.
Spend some money on a matched cam, converter, gear combo and you'll be happy.
BTW, if your going to go big block, forget the 402 and go 454. 50 xtra cubes, more torque and the same weight penalty.
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