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b454rat · 04-05-2014, 08:50 AM

I wouldn't do 4.56s, you have a big block, not gonna be lacking in torque. I have 781 heads on my 454, mild cam, 10:1 comp, was told around 350-400 horse. This is in my 79 Malibu with a 4-speed, and 3.42 gears. Car gets around awesome. A 600+horse engine is quite a bit for the street, it's not gonna be crazy, but sure ain't gonna be mild.

04-05-2014, 08:50 AM	#7
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: Another 489bbc question I wouldn't do 4.56s, you have a big block, not gonna be lacking in torque. I have 781 heads on my 454, mild cam, 10:1 comp, was told around 350-400 horse. This is in my 79 Malibu with a 4-speed, and 3.42 gears. Car gets around awesome. A 600+horse engine is quite a bit for the street, it's not gonna be crazy, but sure ain't gonna be mild.