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EXHAUST VALVE OVERSIZE
Same component, shown as 70-2904
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Also known as70-4231
Listed in parts booksNot catalogued by year yet

EXHAUST VALVE OVERSIZE

An oversize exhaust valve, PN 70-2904/OS (also listed as 70-4231).

PN · 70-2904/OS
Available in 10 versions:

This is an oversize exhaust valve, listed under 70-2904/OS with the alternate number 70-4231 also on file for the same part. Oversize valves like this one are used when a head has been reworked or the seats recut, giving a machinist a bit more material to work with for a proper seal.

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Our records don't give us much more to go on for this one beyond the basic description. If you're rebuilding a head and need to know exactly which engine family and valve size this fits, give the shop a call and we can confirm before you order.

$48.49
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Related parts
Exhaust valve
PN 70-2904
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