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12-05-2019, 06:11 PM | #11 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
As it was just explained to me, the new rule applies to those who have an angled spacer plate being used to replace material that has been cut off at an angle on the intake side of the head. They will also be looking for the OEM angle between the intake side of the head and the block side of the head. That is what the +/- 2 degree allowance is about.
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12-05-2019, 09:00 PM | #12 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
" External modifications prohibited except for the following, intake side of head may be +/- 2 degrees from OEM angle between combustion chamber surface to intake flange surface, may not be cut into any part of valve-cover fastener holes (except for SS/AH). Intake manifold fastener holes must remain unaltered in their original location. Only OEM intake fastener holes are permitted, any additional fastener holes are prohibited. Spacer plates between intake manifold and cylinder head prohibited. Valve-cover fastener holes must remain unaltered and in their original location."
So, does the angle rule get exempted for the SS/AH cars, or is that just for the "valve-cover fastener holes"? It's not entirely clear to me for those cars. Since it is one long, run-on sentence, the exemption would seem to apply to the whole sentence and SS/AH.
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12-05-2019, 09:41 PM | #13 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
I maybe wrong but haven't the big block Mopar stocker guys been doing this since the Edelbrock head was allowed?
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12-06-2019, 07:27 AM | #14 | |
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Re: NHRA 2020 Rule Amendment SS Intakes???
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12-06-2019, 07:38 AM | #15 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
No spacer plates on my Edelbrock heads, paper gaskets and valley pan.
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12-07-2019, 03:55 PM | #16 | |
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Re: NHRA 2020 Rule Amendment SS Intakes???
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12-07-2019, 04:05 PM | #17 | |
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Re: NHRA 2020 Rule Amendment SS Intakes???
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12-07-2019, 04:35 PM | #18 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
Any intake manifold,don't screw with the intake surface of the head is how I understand it. Years ago when John Gunn was torn down NHRA wanted to look at his manifold and he told them no I'm allowed any intake and locked it in the trunk. He said you're not going to look at it and tell all your friends,he got the record and never showed the inside of the manifold.
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12-07-2019, 05:29 PM | #19 | |
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Re: NHRA 2020 Rule Amendment SS Intakes???
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12-07-2019, 06:03 PM | #20 |
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Re: NHRA 2020 Rule Amendment SS Intakes???
...or Bob Dennis.
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