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Red top 180

S13 SR20det head with lines in it?

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Me and my mate imported out cars at the same time, his being 92, mine 93 and i've noticed mine has these lines running in the head, looks like a heat sync or something. Any Idea's?

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post-159211-0-03713500-1458859083_thumb.jpg

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It's all the same head, different casting.

Ok, sweet. Was worrying one of them might be a DE head or something haha

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normally those fins mean s13 blacktop engine from 2nd half 94-98

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Well it's obvious, the red one is faster, what more facts do we need!!

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normally those fins mean s13 blacktop engine from 2nd half 94-98

I always looked at it as blacktop non vct from the last of the s13s and 180sx

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As stated no fins = redtop head, fins = blacktop head.

 

Assuming you have a blacktop engine and not just the head, your pistons (and/or rods?) will be a bit different but they are the same engine for the most part.

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Could be the rare red speckle top motor that's had the rocker cover replaced

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Couldn't be a speckle top.

The OP would have already stated its a "freak engine' numerous times and claimed many a victory.

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Could be the rare red speckle top motor that's had the rocker cover replaced

Bahahahahaha some one find that thread for lol's

 

Awwwww the good old days

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