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Help confirming Piston Identity

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r1_pete:
I finally got round to stripping the bitsa engine, I'm pretty sure the whole top end is F2 - Head Barrels and Pistons, I'd just like some help confirming these are F2 pistons, I did expect a higher dome...

mickwinf:
Hi Pete, turn piston upside down and the model code is stamped on it, I think 392( f1) or 410 (f2) 405 (k7)

Bryanj:
Bottom picture L/H piston, if you enlarge it you can see 410 on the relieved area arround the gudgeon pin---so its an F2

r1_pete:
thanks Both that's some good news on this rebuild

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