Hey Jennifer! A friend of mine who used to frequent these boards quite frequently (Triggerman) took a jab at me when I was contemplating going to Jim Butler's drag race in TN. It is an 1/8 mile track. I told Matt that I had never raced 1/8 mile before. He shot me a very weird look and said, "Oh yes you have! About ever damn time you have run the 1/4 mile". Made me laugh to read your comments on no one knowing their 1/8 mile times.
Well I did not know mine either. Just to give you some perspective My '66 GTO with a 389 and tripower th350 mild hyd cam home ported 093 heads ran pretty consistent 12.90s in the 1/4. My 1/8 mile times were 8.190 @ 82.94 mph. I did not have a lot of $$ in that motor. Stock rods, trw pistons, I did the assembly etc. Maybe $3000 (but that was a few years ago too).
My current combination has gone a best of 10.99 @ 123. 1/8 mile time of 7.011 @ 98.71 mph. This motor is alum rod, 400 block with 455 crank, alum intake, alum heads that flow pretty good, 1 7/8 headers, TH400, Solid roller cam, 12 bolt with 35 spline axels etc etc. bottom line is when you start to go faster it costs a lot of money. This motor makes 618 hp and over 600 ft lbs of torque. Cost me a lot more than 3gs!
So dipping into the 7s would be pretty easy with a mildly warmed over 455. I agree with the 400 block and stroker crank option. It is just easier to do with a 455. Not that you could not do it with a 400....
You definately came to the right place for information. There are some very smart and helpful people here. You are in some very good company!
Good luck with the project!
Kev
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Kevin Swaney
Tin Indian Performance Rear Engine Dragster 7.66 @ 172 mph 494 with KRE High Port Heads
www.tinindianperformance.com
330-699-1358