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Re: How to block off heat riser ports #214746 02/08/09 11:16 PM 02/08/09 11:16 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	Quote: There is a Mopar kit that has the intake gaskets with a metal block off plate for each side. Part#P4286569 I have used it with no problems so far. i found some metal intake gaskets that have one side open and the other side blocked (except for a small hole). i'll check out that part number

Re: How to block off heat riser ports [Re: blownzoom440] #214747 02/09/09 12:01 AM 02/09/09 12:01 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: i am just blerting this out so,couldn't you drill,tap for a pipe plug on the intake side? excellent idea & an alum npt plug could be reverseable if it didn't weld itself to the intake. I went in & eyeballed the crossover in my streetmaster & it is rectangular & too big to drill a big enough round hole to cover it. live every 24 hour block of time like it's your last day on earth

Re: How to block off heat riser ports #214748 02/09/09 11:05 AM 02/09/09 11:05 AM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	Quote: There is a Mopar kit that has the intake gaskets with a metal block off plate for each side. Part#P4286569 I have used it with no problems so far. [/quote I used them. It lifted enough to cause a small internal vac leak. I took a die grinder to the intake and inset the plates. RTV'd them in. RTV will not burn with a oxyacetelyne torch. I used the Mr. Gasket Ultra seals with no heat riser opening. #5208??? I can't check now gotta go to work. "The only thing to do for triumph of evil is for good men to do nothing" "NUNQUAM NON PARATUS!"

Re: How to block off heat riser ports [Re: Bill MeLater] #214749 02/09/09 01:29 PM 02/09/09 01:29 PM
Joined: Dec 2006 Posts: 3,533 Indiana F Fury Fan master
Fury Fan master F Joined: Dec 2006 Posts: 3,533 Indiana	Quote: Thank you...My girlfriend tells me all the time how I'm not funny I know what you mean, apparently I'm dating her sister... Parts I seek: driver doorpanel, 65 Sport Fury, prefer black, needs to be 7-8 on 10 scale, might buy set 16" x 6" Dodge truck wheel(s), from early 70s?, takes 9" dogdish - need for a research job so cheaper is better. 69-73 C-body caliper brackets and/or splashields Send a PM.

Re: How to block off heat riser ports [Re: aarcuda] #214750 02/09/09 02:16 PM 02/09/09 02:16 PM
Joined: Oct 2007 Posts: 3,884 Oregon hooziewhatsit master
hooziewhatsit master Joined: Oct 2007 Posts: 3,884 Oregon	Quote: i found some metal intake gaskets that have one side open and the other side blocked (except for a small hole). i'll check out that part number Sounds like FEL-PRO Part # MS900411. I just put them on my 318, but didn't use the block off gasket. The ones I got have '90009' stamped on them. The set comes with 3 gaskets; two are open, and the third is blocked except for an 1/8" hole. These are for small block, small port heads. -Dave If you ever find yourself in a fair fight, your tactics suck.

Re: How to block off heat riser ports [Re: hooziewhatsit] #214751 02/09/09 02:20 PM 02/09/09 02:20 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	Quote: Quote: i found some metal intake gaskets that have one side open and the other side blocked (except for a small hole). i'll check out that part number Sounds like FEL-PRO Part # MS900411. I just put them on my 318, but didn't use the block off gasket. The ones I got have '90009' stamped on them. The set comes with 3 gaskets; two are open, and the third is blocked except for an 1/8" hole. These are for small block, small port heads. -Dave yup, thats what they look like too. I guess I will try the gaskets that i ordered and stuff the openings with aluminum foil. The melting temp is high enough that it should be ok and even if it did melt, theres only one place for it to go and thats out the exhaust pipe.

Re: How to block off heat riser ports [Re: aarcuda] #214752 02/09/09 05:39 PM 02/09/09 05:39 PM
Joined: Jan 2003 Posts: 20,541 Eagle, Idaho Neil The Doctor is in.
Neil The Doctor is in. Joined: Jan 2003 Posts: 20,541 Eagle, Idaho	Here is the pic of a 350 olds head my brother filled with the zinc alloy. This is right after it was done and the excess zinc still needs to be blended back to match the rest of the bowl shape with a porting bit.

Re: How to block off heat riser ports [Re: Neil] #214753 02/16/09 12:28 PM 02/16/09 12:28 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	thanks for the picture. thats a good way to do itbut Im not going to remove my heads for this. I see now that the aluminum foil balls would probably be a bad idea. I can see that coming loos messing up a valve seat or a valve guide. Im thinking maybe Id cut the gasket out around the port and put a piece of exhaust manifold gasket in the cut out area.

Re: How to block off heat riser ports [Re: aarcuda] #214754 02/16/09 06:05 PM 02/16/09 06:05 PM
Joined: Nov 2008 Posts: 671 Wisconsin USA B Bill MeLater mopar
Bill MeLater mopar B Joined: Nov 2008 Posts: 671 Wisconsin USA	A picture is worth a thousand words...Look at the big block valley pans with the blockoff....Stainless steel, approx. 18 Ga. Works like a charm, has for over 40 years. I worked on an Olds V8 once where the owner had dropped the aircleaner wingnut in the carb, he actually ended up driving it about 7 miles. I pulled the plugs and with a magnet pulled pieces of it out of 3 cylinders...Pretty much trashed the motor. DON'T put anything in there that can possibly come loose.

Re: How to block off heat riser ports [Re: fastmark] #214755 02/16/09 06:29 PM 02/16/09 06:29 PM
Joined: Jan 2003 Posts: 8,144 Arkansas 340727dart master
340727dart master Joined: Jan 2003 Posts: 8,144 Arkansas	Quote: I used those felpro gaskets and they burned through in about 3 or 4 years even of limited use. I have regular hp exhausts on my AAR. It took those same gaskets only one year, with fewer than 1000 miles driven, to burn through on my 340. Your life is not my fault. My life is none of your business. Speech is free only if you agree with those in control.

Re: How to block off heat riser ports [Re: 340727dart] #214756 02/16/09 08:25 PM 02/16/09 08:25 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	ive given up on this quest. too much to screw up and Im alread having a hard time with just getting the manifold on so its aligned to the intake ports. if anyone knows what the intake surface angle is, i need to know

Re: How to block off heat riser ports [Re: aarcuda] #214757 02/16/09 09:05 PM 02/16/09 09:05 PM
Joined: Nov 2008 Posts: 671 Wisconsin USA B Bill MeLater mopar
Bill MeLater mopar B Joined: Nov 2008 Posts: 671 Wisconsin USA	If it was easy, everyone would do it..Don't overthink it. Keep it simple and solid and you won't have a future problem to deal with. Look at what you think is the right way to do it, take advice/previous experience into account and do what you feel comfortable with..

Re: How to block off heat riser ports [Re: Bill MeLater] #214758 02/16/09 09:09 PM 02/16/09 09:09 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	I checked the SB stroker manual & a thick comprehensive MP circle track manual that has tons of fact/figures/details that I will never use & found everything BUT the intake angle live every 24 hour block of time like it's your last day on earth

Re: How to block off heat riser ports [Re: Bill MeLater] #214759 02/16/09 09:34 PM 02/16/09 09:34 PM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	Even a paper gasket in theory would be fire proof with a good thick coating of high temp RTV

Re: How to block off heat riser ports [Re: RapidRobert] #214760 02/16/09 09:36 PM 02/16/09 09:36 PM
Joined: Jun 2005 Posts: 426 Califor-ni-A! MrFoFody mopar
MrFoFody mopar Joined: Jun 2005 Posts: 426 Califor-ni-A!	I just folded some foil onto itself a couple of times and laid it over the heat riser ports. I then bolted the intake down as usual (big block).

Re: How to block off heat riser ports [Re: Bill MeLater] #214761 02/16/09 09:42 PM 02/16/09 09:42 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	Quote: If it was easy, everyone would do it..Don't overthink it. Keep it simple and solid and you won't have a future problem to deal with. Look at what you think is the right way to do it, take advice/previous experience into account and do what you feel comfortable with.. my problem is that the head i have were milled years ago (before i bought them). everytime i've put them on, i have fought with them because the intake surface on the heads werent cut correctly. so the intake always sat up high. it sat so high that the bolts wanted to go in crocked. I could get the bolts in (barely) but it wasnt right. there was just too little space for the gasket. the heads intake needs to be cut. I bet if I cut it so the ports aligned correctly, this car wiuld fly. as it is, im losing .200" in the height of the port because of the misalignment. Thats what im working on fixing first. once I get the surfaces cut right, then I will think about the cross over. The last thing I need right now is adding a shim in there that might make it worse. Once the intake sits right, then I'll hack up a gasket and use some stainless steel plates my buddy gave me today

Re: How to block off heat riser ports [Re: RapidRobert] #214762 02/16/09 09:46 PM 02/16/09 09:46 PM
Joined: Mar 2003 Posts: 15,489 the boonies aarcuda OP I Live Here
aarcuda OP I Live Here Joined: Mar 2003 Posts: 15,489 the boonies	Quote: I checked the SB stroker manual & a thick comprehensive MP circle track manual that has tons of fact/figures/details that I will never use & found everything BUT the intake angle i know. ive looked at all my sources and cant find a thing. im ready to get a protractor out and wing it on an old 360 manifold I have. I figure someone must know what that angle is.

Re: How to block off heat riser ports [Re: aarcuda] #214763 02/16/09 10:45 PM 02/16/09 10:45 PM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440
blownzoom440 B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	victorylibrary.com has a lot of information.i hope it can help you.go to the tech paper page.

Re: How to block off heat riser ports [Re: blownzoom440] #214764 02/16/09 11:22 PM 02/16/09 11:22 PM
Joined: Aug 2004 Posts: 3,333 MARYLAND 69Cuda340S master
69Cuda340S master Joined: Aug 2004 Posts: 3,333 MARYLAND	Are you trying to determine how much to cut the intake so it fits correctly?

Re: How to block off heat riser ports [Re: aarcuda] #214765 02/16/09 11:25 PM 02/16/09 11:25 PM
Joined: Nov 2008 Posts: 671 Wisconsin USA B Bill MeLater mopar
Bill MeLater mopar B Joined: Nov 2008 Posts: 671 Wisconsin USA	If you are dealing with unknowns, such as intake port/head angles try making a template of the intake side of the heads on the motor w/the intake removed. Then make a template of the intake, compare them and adjust angles/mounting holes/ports as needed. Certainley not high tech but will get the results you're looking for..

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