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Old 06-19-2005, 11:31 AM
Vrroom Vrroom is offline
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Join Date: Dec 2004
Location: Simpsonville, SC
Posts: 44
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I'm trying to decide what cam to use on my 400 build for my 69 GTO. My last 69 GTO motor was a 400 (+.030) and had 062 heads, forged pistons milled .060, a RA III cam which was advanced 4 degrees, a 2200 rpm stall converter and a 3:23 rear end. Performance was not great, but it did have that lopy sound at idle, which is what I wanted at the time.

For this build I have a standard bore 400 and #96 heads measured at 96-98cc's. I'm going to mill them 0.060" in an attempt to get the CR higher. The deck height is + 0.010. I was thinking about using either a 068 or a 744 cam with a little less LSA (probably about 14 degrees instead of 15.5) and also advancing the cam 2 to 4 degrees. I'll probably go with a 2200 stall converter as well. The rear end gear is a 3:23 (open) at the moment, but that can easily be changed.

I really don't know WTF I'm doing. I've read too much stuff in the past month and now I'm confused. I'm just making a guess at the combination that I think might work. If any one has some suggestions, please feel free to post them now before I start spending money.

What I want is a car that sounds like a muscle car while it's idling. I'd like to have that "seat of the pants" feel from 0 to 40 mph, but the top end does not need to be strong. The car will be a daily driver and will be more of a toy than anything else. I will not be racing it at the local drag strip.

Thanks for any input or engine build combinations related to the parts that I have to build with.

Vrroom

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1969 GTO restoration project.
 


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