New Mopar Crate Motor

Real Racer · 11-08-2007, 03:50 PM

Do you think that there is any chance that IHRA will allow this one? Could be pretty good around 400 factored HP. Fun for sure especially with a stick.

Mopar Performance revives Six-Pack small-block

The 410 Magnum Six-Pack crate engine is available from Mopar Performance
photo courtesy Mopar Performance
The triple-carbed Mopar engine is a mainstay of the muscle car genre, and one that makes fans of all makes and models take notice.

Back in the day, Chrysler offered the three-deuce arrangement only on small-block engines in a limited run of Challenger T/A and ?Cuda AAR models, which were really only offered to the public to homologate the package for Trans-Am racing.

Now Mopar Performance has combined the trio of Holleys with a small-block and added the benefit of more cubes. The 410 Magnum Six-Pack crate engine is based on a brand-new block, which MP claims is a 340 piece rather than the late-model Magnum type most of its recent crates have used. The block is stuffed with a 4.00-inch cast stroker crank, which, when combined with the 4.040-inch bores, creates 410 cubic inches.

The cylinder heads are cast-iron Magnum R/T ?big-valve? assemblies, though they utilize the Chrysler LA-series small-block intake bolt pattern, allowing the aluminum manifold to bolt right up. The compression ratio is a pump-gas compatible 9.7:1 and the camshaft is hydraulic, with 248 duration at .050 and .508-inch lift. The engine comes with an eight-quart center-sump oil pan and Mopar Performance cast aluminum finned rocker covers, but you?ll have to round up a set of carbs yourself (MP has them, too).

Rated for 450 horsepower and 475-lbs.ft. of torque, the Six-Pack crate small-block makes a perfect powerplant for the street/strip Mopar

Michael Beard · 11-08-2007, 04:06 PM

-=drool=- Although at the factory 450hp, most cars would end up in B/CM, so you'd need a full cage. Some heavier models might get into D/CM Since the engine doesn't come with the 6Pak setup, I wonder if IHRA would let/make you run the standard 750 Holley.

herbjr · 11-08-2007, 04:24 PM

Beard that is the point, no single carbs allowed. We had a car we ran in NMCA back in the 90's and we ran 3 BG split dominators on a six pack. After spending a HUGE amount of money on that and a sheet metal intake we ran faster with a modified stock setup.

Herb Jr

Michael Beard · 11-08-2007, 04:39 PM

Ironic you should mention that... I think it was you and I that was talking about the Crate Motor Super Stock idea the other day. I got digging around, and I think that a couple of the fast guys like Truell and Womble are good candidates to run SS/Modified Stock... something to look at.

RJ · 11-08-2007, 07:13 PM

I like the 440 small block crate motor better, overrated at 540hp but drop that some and an A/CM A body would be a neat package. http://www.mopartsracing.com/parts/blocks.html, page down about half way.

IHRA 9730

Jim Wahl · 11-08-2007, 08:00 PM

herbjr,
Will your dad be at the PRI show this year? Jim

herbjr · 11-08-2007, 08:14 PM

Yes he will in the Indy Cylinder Head booth.

Herb jr

11-08-2007, 03:50 PM	#1
Real Racer Member Join Date: Jan 2002 Posts: 99 Likes: 0 Liked 0 Times in 0 Posts	New Mopar Crate Motor Do you think that there is any chance that IHRA will allow this one? Could be pretty good around 400 factored HP. Fun for sure especially with a stick. Mopar Performance revives Six-Pack small-block The 410 Magnum Six-Pack crate engine is available from Mopar Performance photo courtesy Mopar Performance The triple-carbed Mopar engine is a mainstay of the muscle car genre, and one that makes fans of all makes and models take notice. Back in the day, Chrysler offered the three-deuce arrangement only on small-block engines in a limited run of Challenger T/A and ?Cuda AAR models, which were really only offered to the public to homologate the package for Trans-Am racing. Now Mopar Performance has combined the trio of Holleys with a small-block and added the benefit of more cubes. The 410 Magnum Six-Pack crate engine is based on a brand-new block, which MP claims is a 340 piece rather than the late-model Magnum type most of its recent crates have used. The block is stuffed with a 4.00-inch cast stroker crank, which, when combined with the 4.040-inch bores, creates 410 cubic inches. The cylinder heads are cast-iron Magnum R/T ?big-valve? assemblies, though they utilize the Chrysler LA-series small-block intake bolt pattern, allowing the aluminum manifold to bolt right up. The compression ratio is a pump-gas compatible 9.7:1 and the camshaft is hydraulic, with 248 duration at .050 and .508-inch lift. The engine comes with an eight-quart center-sump oil pan and Mopar Performance cast aluminum finned rocker covers, but you?ll have to round up a set of carbs yourself (MP has them, too). Rated for 450 horsepower and 475-lbs.ft. of torque, the Six-Pack crate small-block makes a perfect powerplant for the street/strip Mopar

11-08-2007, 04:06 PM	#2
Michael Beard VIP Member Join Date: Sep 2002 Location: Columbus, OH Posts: 4,060 Likes: 0 Liked 13 Times in 9 Posts	Re: New Mopar Crate Motor -=drool=- Although at the factory 450hp, most cars would end up in B/CM, so you'd need a full cage. Some heavier models might get into D/CM Since the engine doesn't come with the 6Pak setup, I wonder if IHRA would let/make you run the standard 750 Holley. __________________ Michael Beard - NHRA/IHRA 3216 S/SS

11-08-2007, 04:24 PM	#3
herbjr VIP Member Join Date: Apr 2005 Location: Greensboro NC Posts: 1,027 Likes: 1 Liked 83 Times in 32 Posts	Re: New Mopar Crate Motor Beard that is the point, no single carbs allowed. We had a car we ran in NMCA back in the 90's and we ran 3 BG split dominators on a six pack. After spending a HUGE amount of money on that and a sheet metal intake we ran faster with a modified stock setup. Herb Jr

11-08-2007, 04:39 PM	#4
Michael Beard VIP Member Join Date: Sep 2002 Location: Columbus, OH Posts: 4,060 Likes: 0 Liked 13 Times in 9 Posts	Re: New Mopar Crate Motor Ironic you should mention that... I think it was you and I that was talking about the Crate Motor Super Stock idea the other day. I got digging around, and I think that a couple of the fast guys like Truell and Womble are good candidates to run SS/Modified Stock... something to look at. __________________ Michael Beard - NHRA/IHRA 3216 S/SS

11-08-2007, 07:13 PM	#5
RJ Member Join Date: Oct 2002 Posts: 248 Likes: 0 Liked 0 Times in 0 Posts	Re: New Mopar Crate Motor I like the 440 small block crate motor better, overrated at 540hp but drop that some and an A/CM A body would be a neat package. http://www.mopartsracing.com/parts/blocks.html, page down about half way. IHRA 9730 Last edited by RJ; 11-08-2007 at 07:19 PM.

11-08-2007, 08:00 PM	#6
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,844 Likes: 666 Liked 683 Times in 129 Posts	Re: New Mopar Crate Motor herbjr, Will your dad be at the PRI show this year? Jim __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association.

11-08-2007, 08:14 PM	#7
herbjr VIP Member Join Date: Apr 2005 Location: Greensboro NC Posts: 1,027 Likes: 1 Liked 83 Times in 32 Posts	Re: New Mopar Crate Motor Yes he will in the Indy Cylinder Head booth. Herb jr