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Old 09-22-2003, 10:07 AM
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vortec block????????

Hi
Just wondering what the go is with the vortec block, are they any stronger than the older sbc blocks ??
Im thinking of buying a vortec block that has come out of a race boat, would my older engine parts bolt straight up??

Any help much appreciated
Cheers

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Old 09-22-2003, 10:23 AM
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I know the intake manifolds are not interchangeable.
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Old 09-22-2003, 06:17 PM
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Yeah i read that, im really intersested in the blocks as theres a 350 block ( wich he has informed me is a vortec block) for sale near me.
He seems to be asking a pretty good price for it. i just wanted to know if the vortec block is a disirable thing when it comes to a strong bottom end.
He also has a scat 4130 crank wich has had a spun bearing wich im thinking of getting as well. All his bits and pieces are out of a boat race engine.
The block is bored .030 wich is what im chasing to suit a set of blower pistons i have.
Just need to find out if the vortec castings are the go.
Cheers
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Old 09-22-2003, 06:51 PM
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personally, I don't know that there are all that many differences between the older blocks and the vortec blocks, I think the main differences are in the cylinder heads and intake manifold. I could be wrong tho, so you may want to ask someone who has dealt with these blocks before.

Also, if it has been a raced quite a bit since it was bored .30 over, you may have to have it bored again. If you want to put a blower on it will have to be designed for the vortec heads because it will have the same mounting problems as a non-vortec intake on vortec heads.
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Old 09-24-2003, 04:21 AM
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The vortec blocks require a crank designed for a one-piece rear seal, although adapters are available to use an older two-piece-seal crank with them. They also may not have the hole drilled and/or machined for the mechanical fuel pump. Some don''t even have the boss for the pump, some are not drilled, and some are not drilled out enough for the pump push rod.
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Old 09-24-2003, 06:19 AM
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Thanks for the info
The only advantage that i can see is that they are set up to run roller lifters.
How would the standard roller lifter set up go running big performance cams.
Cheers
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