NHRA 2020 Rule Amendment SS Intakes???

SSDiv6 · 12-04-2019, 09:17 PM

Was just looking at the new NHRA 2020 Rule Book amendment prohibiting spacers between the intake and the cylinder head.

They already allow sheet metal intakes and also two piece intake manifolds split in the middle in the class so what is the difference in having a spacer between the intake and cylinder head?

This will effect many cars including Mopar 383 with Chevy intakes, Ford FE with 351C intakes and AMC with Mopar intakes running spacers to fit these intakes.

Bob Sherwood · 12-04-2019, 11:06 PM

This has more to do with heads than intake manifolds.

Ralph A Powell · 12-05-2019, 09:48 AM

This will effect many cars including Mopar 383 with Chevy intakes, Ford FE with 351C intakes and AMC with Mopar intakes running spacers to fit these intakes.

You mean adapters?

Lenny5160 · 12-05-2019, 10:51 AM

I don't see anything prohibiting an extremely thick, metallic-core intake gasket.

Steve Stasko · 12-05-2019, 11:32 AM

Quote:

Originally Posted by Lenny5160

I don't see anything prohibiting an extremely thick, metallic-core intake gasket.

An MLS Head gasket is essentially a spacer with a gasket on each side when you get into the thicker gaskets (.050"+). How is a "metallic-core" intake gasket any different?

Jeff Stout · 12-05-2019, 12:01 PM

Weld the spacer to the intake?

Sean Cour · 12-05-2019, 12:13 PM

Quote:

Originally Posted by Bob Sherwood

This has more to do with heads than intake manifolds.

This has more to do with lazy engine "assemblers" than anything!

Lenny5160 · 12-05-2019, 01:38 PM

Quote:

Originally Posted by Steve Stasko

An MLS Head gasket is essentially a spacer with a gasket on each side when you get into the thicker gaskets (.050"+). How is a "metallic-core" intake gasket any different?

It was a joke, a-la "that isn't a spacer, Mr. Tech Guy. It's just a gasket with a very thick aluminum core."

Bryan Worner · 12-05-2019, 02:13 PM

Quote:

Originally Posted by Sean Cour

This has more to do with lazy engine "assemblers" than anything!

Oh, but who could you be referring to????

Dallas Kelly · 12-05-2019, 04:58 PM

It seems clearly apparent who NHRA is focused on with this arbitrary change to one of the longest standing tenants of Super Stock eliminator racing. "Any intake manifold permitted provided unit is of the same configuration as original for carburetor used and will fit under original factory-produced, installed hood" has been one of the basic corner stones of Super Stock Rules since inception of the eliminator, dating to the early/mid-1970's. I'm just guessing but my money says they (NHRA) will expect the affected racers to be grateful that they "only" decided to make this change after almost 48 years of careful consideration.

12-04-2019, 09:17 PM	#1
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 2,989 Likes: 690 Liked 1,453 Times in 541 Posts	NHRA 2020 Rule Amendment SS Intakes??? Was just looking at the new NHRA 2020 Rule Book amendment prohibiting spacers between the intake and the cylinder head. They already allow sheet metal intakes and also two piece intake manifolds split in the middle in the class so what is the difference in having a spacer between the intake and cylinder head? This will effect many cars including Mopar 383 with Chevy intakes, Ford FE with 351C intakes and AMC with Mopar intakes running spacers to fit these intakes. Last edited by SSDiv6; 12-04-2019 at 11:06 PM.

12-04-2019, 11:06 PM	#2
Bob Sherwood Member Join Date: Jul 2006 Location: South Dakota Posts: 140 Likes: 65 Liked 329 Times in 50 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? This has more to do with heads than intake manifolds.

12-05-2019, 09:48 AM	#3
Ralph A Powell Member Join Date: Oct 2017 Location: Bay City Texas Posts: 356 Likes: 1 Liked 201 Times in 122 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? This will effect many cars including Mopar 383 with Chevy intakes, Ford FE with 351C intakes and AMC with Mopar intakes running spacers to fit these intakes. You mean adapters?

12-05-2019, 10:51 AM	#4
Lenny5160 Senior Member Join Date: Nov 2015 Location: Inver Grove Heights, MN Posts: 898 Likes: 604 Liked 432 Times in 225 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? I don't see anything prohibiting an extremely thick, metallic-core intake gasket. __________________ S/ST 51 S/C 53

12-05-2019, 12:01 PM	#6
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,407 Likes: 53 Liked 654 Times in 254 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? Weld the spacer to the intake?

12-05-2019, 04:58 PM	#10
Dallas Kelly Member Join Date: Dec 2008 Location: Cleves, OH Posts: 141 Likes: 310 Liked 85 Times in 21 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? It seems clearly apparent who NHRA is focused on with this arbitrary change to one of the longest standing tenants of Super Stock eliminator racing. "Any intake manifold permitted provided unit is of the same configuration as original for carburetor used and will fit under original factory-produced, installed hood" has been one of the basic corner stones of Super Stock Rules since inception of the eliminator, dating to the early/mid-1970's. I'm just guessing but my money says they (NHRA) will expect the affected racers to be grateful that they "only" decided to make this change after almost 48 years of careful consideration. Last edited by Dallas Kelly; 12-05-2019 at 05:01 PM.