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Discussion Starter #1
Hi guys

I am at the final part install of my turbo build and orderd ARP part no 208-4305 for D16Y.I have a D16A6 block and D15B head.

When I compare the lengths,it seems the ARP's are slightly shorter.

1.Is that the correct part number
2.Can it be that my stoc bolts have stretched?
 

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IIRC, Y8 headstuds are half an inch shorter than Z6 studs, maybe more, maybe less. I just know Y series are shorter than Z series.
 

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Discussion Starter #3
IIRC, Y8 headstuds are half an inch shorter than Z6 studs, maybe more, maybe less. I just know Y series are shorter than Z series.
So you suggesting I get the other part number ARP bolts.They only have 2 part numbers for the D series so must be one of them :bigok:
 

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So you suggesting I get the other part number ARP bolts.They only have 2 part numbers for the D series so must be one of them :bigok:
Yes, the Z6 ones will be longer.
 

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just a thought do the obd-II d15b heads like the y8's heads?....if so and he has a obd2 head he is going to need 1 of the y-series studs and the other 9 z6
 

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just a thought do the obd-II d15b heads like the y8's heads?....if so and he has a obd2 head he is going to need 1 of the y-series studs and the other 9 z6
haha now its getting complicated!:wacko:
 

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