Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here.

          
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  #21  
Old 06-27-2022, 09:42 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
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Last thing you need is a pin that deformed and locked up the rod/piston in the bore.
Parts tend to exit quickly when that happens. Typically you would never run a light pin
(example a 140 gram pin like the Dodge boys used to run) in a high HP (Boosted deal.
Those were really .984" diameter so you opened up the pistons and the rods by .002"
difference in the wall thickness. .980 plus .002 per side got you the .984 diameter.

Buy the best pins you can afford.

Tom V.

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  #22  
Old 06-27-2022, 10:20 PM
Curtis Slowe Curtis Slowe is offline
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Quote:
Originally Posted by Tom Vaught View Post
Last thing you need is a pin that deformed and locked up the rod/piston in the bore.
Parts tend to exit quickly when that happens. Typically you would never run a light pin
(example a 140 gram pin like the Dodge boys used to run) in a high HP (Boosted deal.
Those were really .984" diameter so you opened up the pistons and the rods by .002"
difference in the wall thickness. .980 plus .002 per side got you the .984 diameter.

Buy the best pins you can afford.

Tom V.
Definitely. My old pins were .158" wall. Swapped those out for some Trend H13 tool steel .205" wall pins. Feel much better about those. Lol

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