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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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02-14-2021, 09:49 PM | #1 |
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Rebuilding Head from 2013
I'm about to start an engine build and I bought a spare motor that was from an early 2014 that had a spun bearing. I have torn it down to the block and sent it to the engine shop to begin. Looking through some old posts here I find that they changed the valves/rocker arms/ rocker pivots in later 2014. So I looked at the pivots and they are definitely from the earlier version so my question is should I be ordering all the updated components instead of reusing the older design stuff? And is the head itself good to rebuild with these updated components or do I need to just find a used head that already has all these updates? I was only going to change valve springs originally.
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02-17-2021, 08:40 PM | #2 | |
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specifically relating to this post:
https://www.ft86club.com/forums/show...&postcount=642 Quote:
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02-17-2021, 08:46 PM | #3 |
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The difference in the rocker pivots is just the size of the oiling hole. Not huge, but they are smaller and may help with oil pressure. Not 100% sure. As someone who has lost an engine from kicking out the rocker arms, I would run the newer valves and rockers. The newer valve has a longer stem and the rocker a deeper pocket where the pivot sits. I plan to upgrade my spare motor to prevent this issue.
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02-17-2021, 08:55 PM | #4 | |
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Quote:
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The Following User Says Thank You to ML For This Useful Post: | NoHaveMSG (02-17-2021) |
02-17-2021, 09:04 PM | #5 |
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Shit, you're right. The newer valves are another 500 bucks. Might be easier to source used newer heads or just go with the rocker retainer kit.
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02-17-2021, 09:16 PM | #6 | |
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Quote:
Also after looking at the retainer kit, I'm convinced that some work on the lathe and right retainer clip you could make your own for pretty cheap.
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02-18-2021, 12:00 PM | #7 |
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Likely custom made, which really isn't that big of an obstacle if someone wanted to tackle it.
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02-21-2021, 11:32 PM | #8 | |
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02-22-2021, 07:00 AM | #9 | |
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