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Any IHRA 440 cratemotor stock racers out there? #1127701 12/04/11 11:59 PM 12/04/11 11:59 PM
Joined: Dec 2004 Posts: 915 S.W. PA 6 6PACMAC OP super stock
6PACMAC OP super stock 6 Joined: Dec 2004 Posts: 915 S.W. PA	Any trouble running on or under your indexes ? Is the 2.08 valve stage v head legal?

Re: Any IHRA 440 cratemotor stock racers out there? [Re: 6PACMAC] #1127702 12/05/11 07:59 PM 12/05/11 07:59 PM
Joined: Dec 2004 Posts: 915 S.W. PA 6 6PACMAC OP super stock
6PACMAC OP super stock 6 Joined: Dec 2004 Posts: 915 S.W. PA

Re: Any IHRA 440 cratemotor stock racers out there? [Re: 6PACMAC] #1127703 12/05/11 08:47 PM 12/05/11 08:47 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	The Marcum family out of Ohio(?) had one in a Dart Sport, then in a Challenger several years ago. The indexes may have ben lowered since then, but not enough to prevent running under if the engine is built well while not resorting to any high-doller "tricks". I believe the Dart ran in E/CM and the Challenger ran in F/CM. There may have been one in a '68 Cuda. But I don't believe it's been run for quite a while either. The engine is a "paper combo" that was drawn up in the infancy of crate motor Stock. This was before Mopar had any big blocks to compete against the Fords and Chevies. It's also been de-factored from the original 410 hp to 405. Double-check with IHRA tech to confirm. 440 crate motor info As for the heads, the 2.08/1.74 Stage head legality would need to be confirmed with them also. They've been out of production for a long time.

Re: Any IHRA 440 cratemotor stock racers out there? [Re: Locomotion] #1127704 12/05/11 10:38 PM 12/05/11 10:38 PM
Joined: Jan 2003 Posts: 133 Winter Park, Florida C classracer member
classracer member C Joined: Jan 2003 Posts: 133 Winter Park, Florida	This engine is the same as a legal 70-71 440-6 bbl engine. You are just allowed more lift and a single 850 cfm carb. Lift on the 70 6 bbl engine is .455" Intake & .470" exhaust. The lift on the 71 6 bbl engine is .468" intake and .483" Exhaust. The crate engine is allowed .533" lift Intake & Exhaust. The 850 holley is a wash. I would think a well prepare 440 crate engine could make somewhere around 600hp. Jim 70 Challenger A/SA 2441

Re: Any IHRA 440 cratemotor stock racers out there? [Re: classracer] #1127705 12/05/11 11:49 PM 12/05/11 11:49 PM
Joined: Dec 2004 Posts: 915 S.W. PA 6 6PACMAC OP super stock
6PACMAC OP super stock 6 Joined: Dec 2004 Posts: 915 S.W. PA	Quote: This engine is the same as a legal 70-71 440-6 bbl engine. You are just allowed more lift and a single 850 cfm carb. Lift on the 70 6 bbl engine is .455" Intake & .470" exhaust. The lift on the 71 6 bbl engine is .468" intake and .483" Exhaust. The crate engine is allowed .533" lift Intake & Exhaust. The 850 holley is a wash. I would think a well prepare 440 crate engine could make somewhere around 600hp. Jim I'm sure my "well prepared'" engine would be lucky to get 450 hp at the flywheel , but ya never know. How does one get 600 hp out of a set of stock, legal valve jobbed, non acid ported 906 or one of the "smogger" heads? I haven't figured that out yet

Re: Any IHRA 440 cratemotor stock racers out there? [Re: 6PACMAC] #1127706 12/05/11 11:59 PM 12/05/11 11:59 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	That's where the extra "Stocker tricks" come in as well as paying attention to ALL the details - blueprinting to minimum specs, low tension rings, honing with deck plates, light oil, get with the cam manufacturer for a "Stocker" cam with the spec lift, but lots more duration & other custom specs........just for starters. But you don't need to get that much out of it since the E/CM index is only 11.50. I don't have the min. race weight handy. As long as you can run under that, your good to go. Just gotta watch for any other E/CM cars that you might get matched up against on the ladder. IHRA Stock class indexes. Last edited by Locomotion; 12/06/11 12:09 AM.

Re: Any IHRA 440 cratemotor stock racers out there? [Re: Locomotion] #1127707 12/06/11 10:14 PM 12/06/11 10:14 PM
Joined: Jan 2003 Posts: 133 Winter Park, Florida C classracer member
classracer member C Joined: Jan 2003 Posts: 133 Winter Park, Florida	I'm sorry for any miss-leading statements as I know not what I speak. Myron he is all yours. Hope to see ya next year at the races....Jim

Re: Any IHRA 440 cratemotor stock racers out there? [Re: classracer] #1127708 12/06/11 10:30 PM 12/06/11 10:30 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	Quote: I'm sorry for any miss-leading statements as I know not what I speak. Myron he is all yours. Hope to see ya next year at the races....Jim No, everything you said sounds correct. Good point to bring up the short block similarities to a 440-6 as I've been told that also a while back. IHRA just came up with an easily duplicated combo. I guess 600 HP is needed to run mid-low 10's in A/B/C Stock. But luckily the IHRA CM indexes are a little softer.

Re: Any IHRA 440 cratemotor stock racers out there? [Re: Locomotion] #1127709 12/07/11 12:31 AM 12/07/11 12:31 AM
Joined: Jan 2003 Posts: 6,531 Jacksonville, FL Chris2581 master
Chris2581 master Joined: Jan 2003 Posts: 6,531 Jacksonville, FL	If my car hadn't been mini tubbed,I'd run that class and engine combo.The engine combo is IMHO,one of the cheaper ones to build. Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.

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