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Old 11-17-2015, 02:32 PM   #1
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Default Not a debate, a question...HG for MSM (engine **** inside)

Got a built 2004 MSM motor. Just had head done now I need to order HG. Car will mostly see street duty 300-350 WHP with help of EFR.

1) Stock 2004 HG MSM gasket no reroute
2) Stock 2004 MSM HG with reroute
3) 94-97 HG with reroute
4) something I have not thought of

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Not a debate, a question...HG for MSM (engine porn inside)-20151027_200525_zpsno4vaxmg.jpg  
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Old 11-17-2015, 02:35 PM   #2
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94-00 gasket with re-route will be most effective
but on street car you can even get away with the OE 01+ gasket depending on rest of the cooling system
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Old 11-17-2015, 02:36 PM   #3
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94-00 HG with reroute
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Old 11-17-2015, 02:38 PM   #4
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pre VVT headgasket with reroute has worked for everyone for years

I don't have the link handy, but there is some cadillac based coolant hose you can use for the reroute that will save you a lot of the hassle I went through.
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Old 11-17-2015, 02:49 PM   #5
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Quote:
Originally Posted by AlwaysBroken View Post
pre VVT headgasket with reroute has worked for everyone for years

I don't have the link handy, but there is some cadillac based coolant hose you can use for the reroute that will save you a lot of the hassle I went through.
Gates #22436 hose or a Dayco #E72380 @ RevLimiter
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Old 11-17-2015, 02:54 PM   #6
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Thanks.
Part # is BP26-10-271
for future searchers.
$65.17 from Rosenthal Arlington Mazda Parts Store

GASKET,CYL. HEAD (BP26-10-271) - $65.17 - BP2610271
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Old 11-17-2015, 03:43 PM   #7
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shuiend what are the ebay ones you like. MLS?
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Old 11-17-2015, 04:39 PM   #8
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shuiend what are the ebay ones you like. MLS?
I just ordered 3 of these. They should be in Thursday. I have been running ebay MLS HG on miata's since 2010. Never once have I had an issue with them. I always do 94-00 gaskets with reroutes on all the motors I put together.
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Old 11-17-2015, 05:01 PM   #9
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With reroute what is the best HG for 2003 VVT engine??
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Old 11-17-2015, 05:06 PM   #10
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are you dense?
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Old 11-17-2015, 05:15 PM   #11
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The 94-00 gasket with a reroute is the desirable combination for every single 94-05 Miata engine. VVT, MSM, everything.
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Old 11-17-2015, 05:18 PM   #12
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Quote:
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With reroute what is the best HG for 2003 VVT engine??
01-05 HG
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Old 11-17-2015, 05:45 PM   #13
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Quote:
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The 94-00 gasket with a reroute is the desirable combination for every single 94-05 Miata engine. VVT, MSM, everything.
but what about the 2002?
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Old 11-17-2015, 05:45 PM   #14
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Quote:
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Quote:
Originally Posted by StealthNB View Post
With reroute what is the best HG for 2003 VVT engine??
01-05 HG
I find the composite 1.6 HG to be the best for the 2003 VVT engines. The smaller displacement means it is lighter which is win-win in my back.
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Old 11-17-2015, 05:54 PM   #15
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Quote:
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I find the composite 1.6 HG to be the best for the 2003 VVT engines. The smaller displacement means it is lighter which is win-win in my back.
Makes it rev faster too.
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Old 11-17-2015, 06:39 PM   #16
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I really was not trying to open this can of worms (again).

$25 ebay head gaskets....hmmm I'm thinking I'm going crazy and getting the $60 Mazda ones call me BALLER!


But rest assured that every other Miata build (that I dont have $$$ in the block) will be getting some ebay gaskets from now on.
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Old 11-17-2015, 07:35 PM   #17
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Quote:
Originally Posted by IcantDo55 View Post
I really was not trying to open this can of worms (again).

$25 ebay head gaskets....hmmm I'm thinking I'm going crazy and getting the $60 Mazda ones call me BALLER!


But rest assured that every other Miata build (that I dont have $$$ in the block) will be getting some ebay gaskets from now on.
I only use eBay head gaskets. I go OEM from Rosenthal for every other gasket on the car. Over the years I have noticed a distinct difference in how OEM verse all others hold up. I'll gladly pay slightly more and wait 2 days to get them.
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Old 11-17-2015, 09:58 PM   #18
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Quote:
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Makes it rev faster too.
Bah. Permatex ultra gray.

--Ian
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Old 11-19-2015, 03:42 PM   #19
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Quote:
Originally Posted by shuiend View Post
I find the composite 1.6 HG to be the best for the 2003 VVT engines. The smaller displacement means it is lighter which is win-win in my back.
Would like to see picture of win-win in your back
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