Head/Main Stud Sizes on different blocks???
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11 Second Club
iTrader: (1)
Joined: Jan 2002
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From: Indianapolis Area
Is there a difference of hardware size as far as diameter between the stock, re-sleeved, iron, and C5-R blocks? What is the limit of oversized hardware before it weakens the block for ultra high horsepower?
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
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From: Baton Rouge, LA
The C5R blocks do not use factory metric threads on the head and main threads. The threads are standard. The studs used on the C5R are some of the best money can buy.

