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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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05-12-2021, 12:58 PM
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Cylinder Head Differences 2013-14 vs 2017+
Are there differences in the cylinder heads from 2013-2014 and 2017+? I did a few searches and didn't see any obvious threads on the topic. I have a 2013 motor I'm rebuilding and it was suggested that I should find a set of 2017+ heads to put on it.
Any help is appreciated. Keith |
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05-12-2021, 01:03 PM
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05-12-2021, 01:47 PM
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2014 is the first revision on the head. 2014 the rocker pivots all have same size holes, on the 2013 engine I think the it is the passenger head, the rocker pivots have smaller holes.
2014 heads have longer stems on the valves, and the rocker arms have deeper pivots.
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| The Following User Says Thank You to NoHaveMSG For This Useful Post: | Tcoat (05-12-2021) |
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05-13-2021, 04:19 PM
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Do the 2017+ heads still have issues with the rockers falling out?
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05-13-2021, 04:45 PM
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It’s hit n miss, even with the 13’s. It should be improved, but is still possible. Sent from my iPhone using Tapatalk
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