What year did 4.2 go to 295 hp?

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Re: What year did 4.2 go to 295 hp? #29500 12/19/07 03:43 AM
Joined: Nov 2004 Posts: 1,810 Likes: 1 Calgary Alberta Canada E efi-diy 1000 Post Club
efi-diy 1000 Post Club E Joined: Nov 2004 Posts: 1,810 Likes: 1 Calgary Alberta Canada	2006 Bigger intake cam Bigger intake valves bigger exhaust port More compression Most likely a calibration change too The head is the biggest change. 51 GMC 4.2 turbo Can't solved today's problems using the same technology/thinking that created them

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Inliners International Forums General Discussion Hi Performance What year did 4.2 go to 295 hp?