Engine build pistons
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New Member
Joined: 01-31-2011
Posts: 16
From: baltimore
Engine build pistons
I have a set of pistons i want to replace the factory with some forged pistons, has anyone ever done any build with the wiseco pistons and if so do you know if an 09 hhr ss has rod bushing and or rod bearings?
Senior Member
Joined: 01-13-2008
Posts: 4,708
From: Washington State, where it rains
Pins I believe..when they did the first "lets see how much power we can make on a stock block" test runs they got up to just below 750hp , a galling P-Pin was the problem. Up to this point they did nothing to the internals...
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