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Zetec black top or silver?

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Old Sep 23, 2015 | 07:50 AM
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From: seaham
Default Zetec black top or silver?
I know this was a old debate but nowadays what do people think is best and why if you want to start from fresh? Not bothered about rods or Pistons as they will be changed.
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Old Sep 23, 2015 | 11:46 AM
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I would say blacktop - as you can buy brand new crate engines for £650 +vat and work from there.
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Old Sep 23, 2015 | 11:47 AM
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Originally Posted by little bram
I know this was a old debate but nowadays what do people think is best and why if you want to start from fresh? Not bothered about rods or Pistons as they will be changed.
Over time it seems that the Silver Top has virtually no benefits and they're getting hard to find now! Black Top is cheap, strong and flows better.
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Old Sep 23, 2015 | 11:50 AM
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I thought sliver was stronger?
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Old Sep 23, 2015 | 11:55 AM
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Originally Posted by little bram
I thought sliver was stronger?
They technically are, but considering no one has ever broken a Black Top, even at 600bhp, then it's a little irrelevant.
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Old Sep 23, 2015 | 12:17 PM
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I have a silvertop in my s1 but again was sourced when they were plentiful,
I would go blacktop now
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Old Sep 23, 2015 | 02:25 PM
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I always use black tops, better flowing head and mechanical lifters too.
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Old Sep 23, 2015 | 05:24 PM
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depends what you can get. I have a silver top as it was a virtually new engine for £100
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Old Sep 23, 2015 | 06:16 PM
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With such minor differences it's really a case of what crops up at the right price.
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Old Sep 23, 2015 | 07:19 PM
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These days it makes sense to start with a black top, if you kill it you can source a replacement instantly as they are every where.
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Old Sep 23, 2015 | 08:13 PM
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From: seaham
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So really now they are both as good as one another. Ave ran a silver top for last 6 years with out a problem. Are black tops just the same as rs and St170 blocks.
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Old Sep 30, 2015 | 05:20 PM
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Doesn't the black top have a better oil pump?

Im using a fresh crate motor for my 400 bhp engine. Made sense having a new block
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Old Oct 4, 2015 | 12:13 AM
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aslong as you use the bigger pin size, it wont matter black or silvertop

are you now going full zetec turbo now?
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