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#1
06-26-2009, 09:43 PM
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What class would a 66 427/425 Biscayne have run in
I have a 66 Biscayne 427/425 Biscayne and would like to know what class it would have been in in 1966. I have had mixed opinions and thought I'd turn to the experts on the SYC.
Thanks in advance, Dave L. SoCal 
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#3
06-26-2009, 10:48 PM
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Re: What class would a 66 427/425 Biscayne have run in
Hello Dog427425,
Thanks for the info and that was a very cool car. So what time/mph did the car run? Did it have any mods? My Biscayne is a real 427/425 that is in stock condition. I am in the process of making it into a "Day 2" look. It was raced back in the day and not a Trailer Queen but in very good condition. Thanks again, Dave L.
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#4
06-27-2009, 12:05 AM
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Re: What class would a 66 427/425 Biscayne have run in
I'm pretty sure it was factored into NHRA's B/Stock according to it's HP/LBS.
__________________
1962 Biscayne O-21669 MKIV/M-22 1962 Bel Air Sport Coupe 409/1,000
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#6
06-27-2009, 05:22 AM
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Re: What class would a 66 427/425 Biscayne have run in
[b]Dave
It ran in the 12's at over 100 mph, with 4.11's, headers, and some modifications - it was very competitive for the time ('68 /'69) - check out the win stickers! (Keystones & chrome reversed, way up high and the undercarriage painted white) Glenn 
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#7
06-28-2009, 06:54 PM
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Re: What class would a 66 427/425 Biscayne have run in
[ QUOTE ]
I have a 66 Biscayne 427/425 Biscayne and would like to know what class it would have been in in 1966. I have had mixed opinions and thought I'd turn to the experts on the SYC. Thanks in advance, Dave L. SoCal [/ QUOTE ] My original NHRA class guide shows 8.56 for Stock and 8.66 for Super Stock...I didn't bring any rule books with me to Michigan, so someone with a '66 book handy can chime with what class those factors fall into.
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#8
06-28-2009, 08:54 PM
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Re: What class would a 66 427/425 Biscayne have run in
I don't have the NHRA books but here's what I found in the 1969 AHRA Rule Book.
Formula/Showroom Stock Class: B/S B/SA Hot Rod Division: Single 4 Bbl puts you in Formula 2 and Multiple Carbs/Factory FI/Factory Supercharged bumped you up to Formula 1. The 8.56/8.66 factor puts you in C/HR. The 1967 AHRA Rule Book shows the following: Showroom Stock: A/S A/SA Factory Production: FP/DS Formula 2 Hot Rod: B/HR Modified Production: B/MP Sorry but I don't have a 1966 book.
__________________
Don't mistake education for intelligence. I worked with educated people. I socialize with intelligent people.
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#9
07-01-2009, 07:52 AM
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Re: What class would a 66 427/425 Biscayne have run in
I would like to thank all that responded. I appreciate sharing your info and cool pictures.
 Thanks again, Dave L. SoCal
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#10
07-01-2009, 08:38 AM
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Re: What class would a 66 427/425 Biscayne have run in
What is the deal with the crunched car next to yours in the first picture?
Jason
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