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thread sizes needed ?


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#1 Alan Elzer

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Posted 09 August 2018 - 03:21 PM

OS 21 WATER & AIR COOLED OUTB' S THREAD SIZE & LENGTH..for head & backplate

NOVA REX TYPE 21 THREAD SIZE & LENGTH for head & backplate

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#2 topfuel443

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Posted 10 August 2018 - 06:14 AM

OS head bolts are M2.6x12

OS back plate (PTO?) are M2.6x8

 

Not sure on the Nova stuff, im sure Ron knows. 





#3 Alan Elzer

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Posted 10 August 2018 - 06:17 AM

Thnx

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#4 Bradley Ward

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Posted 12 August 2018 - 03:00 PM

I believe the Novarossi is 3.5x16mm head and 2.6x6mm backplate metrics

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#5 Alan Elzer

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Posted 12 August 2018 - 03:48 PM

Thnx guys

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