Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

sbc 350 questions(serial and ID)

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Old 09-09-2006, 09:20 PM
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Default sbc 350 questions(serial and ID)

where would i find the serial number on the block?? (and how many digits is it) and where can i crossreference the number to know more about the block

AND can anyone tell me anything by just looking @ the pictures of these pistons.... i know they are 30 over and brand new as with the rest of the rebuild kit













thanks

Last edited by thelostartof; 07-26-2007 at 03:19 PM.
Old 09-09-2006, 10:44 PM
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The ID for the block is on the top passenger side where the motor bolts to the transmission.
Old 09-09-2006, 11:17 PM
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thx

and i leaned the pistons are TRW and a bit on the heavy side for forged pistons .. but for the price(free) i guess i can not complain
Old 09-11-2006, 11:15 PM
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What's the casting# on the block? It would be on the upper left rear corner behind the #7 cylinder. You can tell quite about the block from that number. A very common casting # is 3970010, I have an earlier 69 block that is a 3932388 casting.

The 2482 casting on the bearing caps I believe is a high nickel cap. I'd be lead to believe it may be an early 70's block if the caps are original, but it's been a couple of years since i've really researched this.

The TRW L2256 piston is a heavy forged piston and will be fine for a street/inexpensive race engine. I wouldn't complain about the price either.

Last edited by ss1; 09-12-2006 at 02:23 PM.
Old 09-13-2006, 07:02 AM
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Hummmm, why didn't this bump after my last post???

Test test 1...2....3.....
Old 09-13-2006, 12:21 PM
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Originally Posted by ss1
What's the casting# on the block? It would be on the upper left rear corner behind the #7 cylinder. You can tell quite about the block from that number. A very common casting # is 3970010, I have an earlier 69 block that is a 3932388 casting.

The 2482 casting on the bearing caps I believe is a high nickel cap. I'd be lead to believe it may be an early 70's block if the caps are original, but it's been a couple of years since i've really researched this.

The TRW L2256 piston is a heavy forged piston and will be fine for a street/inexpensive race engine. I wouldn't complain about the price either.
it is a 3970010 casting so ...

and yes being the whole thing was free ... i can not complain about the price. on top of that i just picked up a $30 eldebrock manifold. now i just need to pick out a set of heads, and throw together all of the cheap parts that will nickle and dime me to death. and the engine will be complete. from there i get the joy of finding a car to put it into which so far i am looking @ 69-72 nova's. hardest part is trying to decide what kind of power i want to make and what can i make with the heavy pistons.

otherwise the engine would be almost a DD setup as in a year or so after running it with a carb i plan to swap it over to FI w/ megasquirt controling fuel and timing so that and a 700r4 should make a good combo for a quick old car i can daily drive and have some fun with

its been almost 5years since i've rebuilt a v8 or worked on them .. time to get back into the game as turbo 4's are getting boring



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