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Oldboy Offline
#1 Posted : Saturday, 11 July 2020 9:20:19 PM(UTC)
Oldboy

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Hey guys can anyone tell me if the 253 blue motor in an 84 wb ran on unleaded fuel or should I use the additive
wbute Offline
#2 Posted : Sunday, 12 July 2020 6:24:37 AM(UTC)
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You need to convert it to hardened valve seats or use an additive.
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Oldboy on 12/07/2020(UTC)
Oldboy Offline
#3 Posted : Sunday, 12 July 2020 10:18:17 AM(UTC)
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Originally Posted by: wbute Go to Quoted Post
You need to convert it to hardened valve seats or use an additive.


Could I put the heads off my 308 vl black on it instead
HK1837 Offline
#4 Posted : Sunday, 12 July 2020 10:57:42 AM(UTC)
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304 in VL not 308. They will probably make it very low in compression. VL 304 had big valves in them and the chambers are larger due to valve deshrouding. All they are is basically B cast style heads with no re-facing to bring chambers back in size plus flame hardened seats. By today the seats are probably no longer that hard anyway especially after recutting them, plus you don’t really want big valves on a 253. You’d be far better off with normal 253/304/308 heads with hardened inserts. Or just use additive.
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Oldboy on 12/07/2020(UTC)
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