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#1 |
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Join Date: May 2002
Location: Shelby, NC
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#2 | |
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Join Date: Nov 2007
Location: Div. 6, Eastern, WA
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From a different thread:
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Dave Noll, EF/S ,?/SA 6526 |
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#3 |
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Location: from Vancouver BC Canada, now in Nova Scotia
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I now have a G Force 4 speed, previously ran Jerico 4 speed. And these NHRA approved transmissions were behind a 5.0 Mustang engine, equipped with the exact same heads, intake manifold , carb, cam lift, etc, as tens of thousands of 85 5.0 Mustangs that had a VIN and were available ,(with warranty) for the street for anybody who walked into a Ford dealership,and drive one home. Can you say that about your COPO? Or do you honestly believe that there is anything "STOCK" about a hand built race car that never was available for street use, that uses engine combinations unavailable to the public in a street version, with a transmission that GM has not offered in 50 years, and a FORD differential that was NEVER available in a GM car ? Just curious.
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NHRA 6390 STK M/S 85 Mustang |
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#4 | ||||
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The factories built plenty of "special performance" engine combinations in the sixties that had very limited access. The biggest hurdles that they have to face today are emission and crash test standards that did not exist back then. The transmissions that we are discussing are aftermarket replacements that meet current SFI standards. Not rebuilt older units. When Chevrolet built the first COPO's they decided that the transmissions had to use all new parts. That's why they all got two-speeds! In 2011 when I started building a 2010 Camaro Stocker, the NHRA made me put a 12-bolt in it. Some time later, they changed the rules to allow a 9" in any 2008 and up car when replacing the IRS. Since the newer Camaros have an available 9.8" ring gear, I don't see this as a problem. Especially since the rear ends being fabricated do not contain one OEM part. Last edited by GUMP; 08-16-2021 at 06:56 PM. |
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#5 | ||
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Join Date: Apr 2020
Location: Phila, PA
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Stan Last edited by Stan Weiss; 08-16-2021 at 10:12 AM. |
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#6 |
VIP Member
Join Date: May 2002
Location: Shelby, NC
Posts: 1,817
Likes: 2,157
Liked 2,336 Times in 549 Posts
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