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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2000 Posts: 98 'Bolter | | 'Bolter Joined: Oct 2000 Posts: 98 | I am getting ready to install tube headers on my 250. I have read somewhere that you should replace the pilot pins at each end of the block with bolts.
How are those pins held in place? Pressed? Threads?
Are they open to the water jacket?
Has someone done this and can give some advice and/or pictures of the results?
Thanks for your help!
Mike Kelley
1966 Chevy C10 SWB - 250 L6/S10 T5
2002 Chevy Ext 1500 4x4
Http://myol66.wordpress.com
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