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SVTPerformance's Chain of Restaurants
The Market
Parts For Sale
Shelby GT500 Parts Buy/Sell
Engine/Drivetrain
5.4 MMR 1000 GT500 Engine
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<blockquote data-quote="Rob_03Mach" data-source="post: 16402420" data-attributes="member: 54954"><p>Ok here it is - Concur about the motor, not thinking it was the tune for as I've had the same Jon Lund tune for 10+ years. On the runs I was data logging and there was no signs of overheating. When I came home after it happened, I found that the leak was caused from the freeze plug dislodging behind the water pump - see picture below. It came loose and without checking anything, I assumed it was caused by pressure hence blown headgasket. That's when I came across the motor and trans out of a 2011 GT500 and went that quick fix route. I recently did a leak down test on all cylinders with readings of 10% or less. I'm thinking now that there's not much wrong with the engine, based on the leak down test and because - my thought - if there was pressure the freeze plug would have pushed out vs. lodged in. In the near future, I'm going to tare it down and find out. </p><p></p><p>I'm no longer selling it as a long block and will be parting it out -</p><p></p><p>Based on the findings, I will be selling:</p><p>- MMR 5.4 Street Mod 1000 Shortblock </p><p>- 5.4 GT500 Heads/cam</p><p>- 2011 Shelby GT500 Valve Covers</p><p>- Innovators West 10% Lower Pulley</p><p>- Timing cover with pulleys</p><p></p><p></p><p></p><p>Not sure, when I bought the MMR SB, MMR provided a ARP crank bolt.</p></blockquote><p></p>
[QUOTE="Rob_03Mach, post: 16402420, member: 54954"] Ok here it is - Concur about the motor, not thinking it was the tune for as I've had the same Jon Lund tune for 10+ years. On the runs I was data logging and there was no signs of overheating. When I came home after it happened, I found that the leak was caused from the freeze plug dislodging behind the water pump - see picture below. It came loose and without checking anything, I assumed it was caused by pressure hence blown headgasket. That's when I came across the motor and trans out of a 2011 GT500 and went that quick fix route. I recently did a leak down test on all cylinders with readings of 10% or less. I'm thinking now that there's not much wrong with the engine, based on the leak down test and because - my thought - if there was pressure the freeze plug would have pushed out vs. lodged in. In the near future, I'm going to tare it down and find out. I'm no longer selling it as a long block and will be parting it out - Based on the findings, I will be selling: - MMR 5.4 Street Mod 1000 Shortblock - 5.4 GT500 Heads/cam - 2011 Shelby GT500 Valve Covers - Innovators West 10% Lower Pulley - Timing cover with pulleys Not sure, when I bought the MMR SB, MMR provided a ARP crank bolt. [/QUOTE]
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SVTPerformance's Chain of Restaurants
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Shelby GT500 Parts Buy/Sell
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5.4 MMR 1000 GT500 Engine
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