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GTX JOHN · 01-05-2011, 05:50 PM

Hi Chris: The late 76- 78 440 have terrible compression due to a -.120 deck
and 82 or 83 CC heads compared to -.027 and 79 CC for earlier motors with almost same HP factor ( 350 vs. 345 Stk. 340 SS )
We have found considerable more airflow and performance with 915 compared with 516 ......we think ourselves.
426 street is a slug but it has been re factored from 365 to 300 HP or so over the years..... which is a bunch.
Me and the kid are looking forward to seeing you this year again.
Good Luck!............Irving Family Racing

01-05-2011, 05:50 PM	#23
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,736 Likes: 2,808 Liked 2,488 Times in 698 Posts	Re: Gettin' back into it.. Hi Chris: The late 76- 78 440 have terrible compression due to a -.120 deck and 82 or 83 CC heads compared to -.027 and 79 CC for earlier motors with almost same HP factor ( 350 vs. 345 Stk. 340 SS ) We have found considerable more airflow and performance with 915 compared with 516 ......we think ourselves. 426 street is a slug but it has been re factored from 365 to 300 HP or so over the years..... which is a bunch. Me and the kid are looking forward to seeing you this year again. Good Luck!............Irving Family Racing