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newbie blues #449752 08/25/09 05:41 PM 08/25/09 05:41 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	im having a case of the newbie blues. im putting a set of 915 heads on a 400 block. all was going well until i got to the intake. my gaskets dont fit properly. i think its leaving the heat cross over open? do i need a special intake with these heads. both the 400 intake and a 440 intake fit fine with the exception of this hole being wide open. what do i need to do to solve this problem? 5440219-intake.jpg (68 downloads) 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: 71scamp440] #449753 08/25/09 05:45 PM 08/25/09 05:45 PM
Joined: Oct 2004 Posts: 601 Clintwood VA johnedod mopar
johnedod mopar Joined: Oct 2004 Posts: 601 Clintwood VA	That area in the center of the head above the gasket is supposed to be open. The cross over is the small hole. No problem they are all like that. Johnedod 68 Road Runner 71 Road Runner 78 Power Wagon

Re: newbie blues [Re: johnedod] #449754 08/25/09 05:50 PM 08/25/09 05:50 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Yeah that area stays open but you should have a bathtub style gasket... Those paper gaskets are just to help seal aliminum intakes & are used in conjunction with the bathtub.... Personally I never use them, to me they cause more problems then they solve....

Re: newbie blues [Re: johnedod] #449755 08/25/09 05:53 PM 08/25/09 05:53 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: That area in the center of the head above the gasket is supposed to be open. The cross over is the small hole. No problem they are all like that. they just stay wide open? what purpose does that hole serve? 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: 1_WILD_RT] #449756 08/25/09 05:55 PM 08/25/09 05:55 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: Yeah that area stays open but you should have a bathtub style gasket... Those paper gaskets are just to help seal aliminum intakes & are used in conjunction with the bathtub.... Personally I never use them, to me they cause more problems then they solve.... ive got the valley pan gasket, i was just using those for the pic 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: 71scamp440] #449757 08/25/09 05:55 PM 08/25/09 05:55 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: what purpose does that hole serve? It separates the hot exhuast crossover passage from areas where oil flows, oil in direct contact with ezcess heat causes the oil to cook and form hard deposits known as coke deposits... Oh BTW lots of guys use a gasket designed to block the head to the intake... It greatly reduces the tendancy of the fuel to boil out of the carb fuel bowls... Newer fuels are designed for fuel injected vehicles & don't react well to excess heat without being pressurized like fuel injection does...

Re: newbie blues [Re: 71scamp440] #449758 08/25/09 05:56 PM 08/25/09 05:56 PM
Joined: Oct 2004 Posts: 601 Clintwood VA johnedod mopar
johnedod mopar Joined: Oct 2004 Posts: 601 Clintwood VA	Quote: Quote: That area in the center of the head above the gasket is supposed to be open. The cross over is the small hole. No problem they are all like that. they just stay wide open? what purpose does that hole serve? I THINK it is just an air space to help keep the oil from coking up under the valve cover in that area. Key word is THINK. Johnedod 68 Road Runner 71 Road Runner 78 Power Wagon

Re: newbie blues [Re: johnedod] #449759 08/25/09 05:58 PM 08/25/09 05:58 PM
Joined: Oct 2004 Posts: 601 Clintwood VA johnedod mopar
johnedod mopar Joined: Oct 2004 Posts: 601 Clintwood VA	Sorry R/T didn't know you had already posted. Johnedod 68 Road Runner 71 Road Runner 78 Power Wagon

Re: newbie blues [Re: 1_WILD_RT] #449760 08/25/09 06:00 PM 08/25/09 06:00 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	If your valley pan gasket is new then don't use the paper gaskets. Just a tiny bit of RTV around the openings is all thats needed.

Re: newbie blues [Re: johnedod] #449761 08/25/09 06:00 PM 08/25/09 06:00 PM
Joined: Jan 2009 Posts: 112 SK, Canada E etek member
etek member E Joined: Jan 2009 Posts: 112 SK, Canada	funny - I rebuilt my first 318 too and was waiting for oil or water to flow out of them holes when I stareted it up - even though I'd been told and read they should be open!!! Nothing happened, runs OK! Check My Web Page: http://edanneberg.googlepages.com/home

Re: newbie blues [Re: johnedod] #449762 08/25/09 06:00 PM 08/25/09 06:00 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: Sorry R/T didn't know you had already posted. We all get to play...

Re: newbie blues [Re: 1_WILD_RT] #449763 08/25/09 06:04 PM 08/25/09 06:04 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: Quote: what purpose does that hole serve? It separates the hot exhuast crossover passage from areas where oil flows, oil in direct contact with ezcess heat causes the oil to cook and form hard deposits known as coke deposits... Oh BTW lots of guys use a gasket designed to block the head to the intake... It greatly reduces the tendancy of the fuel to boil out of the carb fuel bowls... Newer fuels are designed for fuel injected vehicles & don't react well to excess heat without being pressurized like fuel injection does... what kind of gasket to i need? ive got the valley pan gasket. do i need the one with the crossover blocked? 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: etek] #449764 08/25/09 06:10 PM 08/25/09 06:10 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: funny - I rebuilt my first 318 too and was waiting for oil or water to flow out of them holes when I stareted it up - even though I'd been told and read they should be open!!! Nothing happened, runs OK! i didnt even dare bolt the intake on. i could see myself having to take it back off, after it sprayed oil and coolant all over my engine compartment. 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: 71scamp440] #449765 08/25/09 06:15 PM 08/25/09 06:15 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: what kind of gasket to i need? ive got the valley pan gasket. do i need the one with the crossover blocked? Yeah, Felpro makes one with it blocked, I'll see if I can find the number... FWIW some guys don't like blocking the heat, in the old days I didn't either, but the fuel has gotten to the point you've gotta do something.. Felpro #1214 http://www.summitracing.com/parts/FPP-1214/ Last edited by 1_WILD_RT; 08/25/09 06:23 PM.

Re: newbie blues [Re: 71scamp440] #449766 08/25/09 06:16 PM 08/25/09 06:16 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	If it's not a full race motor and your just driving the car for fun don't worry about the crossover. Mother Mopar didn't think it was a problem and thousands of them are running around with it open as designed. My GTX has a fairly healthy 440 and mine are not blocked and no problem with fuel boilling.

Re: newbie blues [Re: 1_WILD_RT] #449767 08/25/09 06:17 PM 08/25/09 06:17 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: Quote: what kind of gasket to i need? ive got the valley pan gasket. do i need the one with the crossover blocked? Yeah, Felpro makes one with it blocked, I'll see if I can find the number... FWIW some guys don't like blocking the heat, in the old days I didn't either, but the fuel has gotten to the point you've gotta do something.. thanks for all your help. does it make the engine run at a hotter temp then normal when they are blocked off? 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: Dougsmopars] #449768 08/25/09 06:29 PM 08/25/09 06:29 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: If it's not a full race motor and your just driving the car for fun don't worry about the crossover. Mother Mopar didn't think it was a problem and thousands of them are running around with it open as designed. My GTX has a fairly healthy 440 and mine are not blocked and no problem with fuel boilling. When Ma Mopar designed these cars/engines fuel was completely different than it is today... You don't want to block the heat, that's fine, the fuel isn't gonna get any better & in California we already get what you will be getting... But we also have a warmer climate which amplifies the problem.. Personally I see the intake being off right now as an opportunity to improve the future starting/driving of thew engine... BTW I edited my above post with the pt # Oh and as far as the engine temp with the crossover blocked, it actually runs cooler..

Re: newbie blues [Re: 1_WILD_RT] #449769 08/25/09 06:29 PM 08/25/09 06:29 PM
Joined: Jan 2008 Posts: 417 jamestown, ny 71scamp440 OP Hinged
71scamp440 OP Hinged Joined: Jan 2008 Posts: 417 jamestown, ny	Quote: Quote: what kind of gasket to i need? ive got the valley pan gasket. do i need the one with the crossover blocked? Yeah, Felpro makes one with it blocked, I'll see if I can find the number... FWIW some guys don't like blocking the heat, in the old days I didn't either, but the fuel has gotten to the point you've gotta do something.. Felpro #1214 http://www.summitracing.com/parts/FPP-1214/ thanks r/t! i appreciate the advice 71 scamp big block with 915 heads 727 trans

Re: newbie blues [Re: 71scamp440] #449770 08/25/09 06:59 PM 08/25/09 06:59 PM
Joined: Sep 2005 Posts: 12,481 Chino Valley RodStRace I Live Here
RodStRace I Live Here Joined: Sep 2005 Posts: 12,481 Chino Valley	Glad these guys got you fixed up. Make sure there are no extra parts in the big open area, and try not to drop anything (carb nuts and clips) down there.

Re: newbie blues [Re: 71scamp440] #449771 08/25/09 08:31 PM 08/25/09 08:31 PM
Joined: Jun 2004 Posts: 3,380 St. Charles, MO wingman Uncreative Title
wingman Uncreative Title Joined: Jun 2004 Posts: 3,380 St. Charles, MO	Quote: what purpose does that hole serve? Old timer told me it was where he put his cigarette butts while working on the car. 1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)

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