I had my manifolds decked and put Fel-Pro gaskets in but have developed a leak again after 2 years and am looking for something better than the ones I used......don't want to run headers so I need to find something that is better than what I used......
"Life is a garden - dig it"...........
1968 F100 2wd - Rangoon Red - 360 w/T18 - power steering and brakes
1997 Honda CBR 900RR
I have these on my headers. https://www.summitracing.com/parts/sce- ... /make/ford . They seal great and after removing the headers a couple of times, re-seal just as well. They have been on the truck for 15 years or so with no leaking. Percy's dead soft also are good ones as well. I'm not familiar with the gaskets you posted the link to but they seem like they would be good as well.
Mark.
Pull your heads and get the flanges milled. Same for the manifolds. Bolt them together and forgetaboutit. Factory had some thin metal heat shields but no gaskets on the FE's.
I had my manifolds decked and put Fel-Pro gaskets in but have developed a leak again after 2 years and am looking for something better than the ones I used......don't want to run headers so I need to find something that is better than what I used......
Got them on my 390 with factory manifolds. Seem to be working well, but I've only got a couple hundred miles on the truck since install. I messed up and cracked the driver side manifold while installing them, still seals up for now, but I'm not sure how long it'll last. Given the cost of a replacement manifold and needing new exhaust anyway, I'll probably be installing headers in the not too distant future.
1968 F-100 4x4 long bed - 360 FE - NP435 w/ Dana 21 - PS & PB conversion - Front Disc Swap - 265/75R16 - 1" S.L. & 2" B.L. (to be removed) - Homemade tube bumpers - Warn 8274 - Currently wearing 1970 body
Ranchero50 wrote:Pull your heads and get the flanges milled. Same for the manifolds. Bolt them together and forgetaboutit. Factory had some thin metal heat shields but no gaskets on the FE's.
That's great in theory, but not everyone has the luxury of tearing their engine apart just to fix an exhaust leak. I for one would rather keep replacing exhaust gaskets every few years than pull the heads once just to have the flanges milled. Now if I were pulling them for some other reason, that would definitely be an option.
1968 F-100 4x4 long bed - 360 FE - NP435 w/ Dana 21 - PS & PB conversion - Front Disc Swap - 265/75R16 - 1" S.L. & 2" B.L. (to be removed) - Homemade tube bumpers - Warn 8274 - Currently wearing 1970 body
Ranchero50 wrote:Pull your heads and get the flanges milled. Same for the manifolds. Bolt them together and forgetaboutit. Factory had some thin metal heat shields but no gaskets on the FE's.
That's great in theory, but not everyone has the luxury of tearing their engine apart just to fix an exhaust leak. I for one would rather keep replacing exhaust gaskets every few years than pull the heads once just to have the flanges milled. Now if I were pulling them for some other reason, that would definitely be an option.
OK, ditch the gaskets and use some Permatex Ultra RTV instead. Let it set up overnight and forgetaboutit.
Ranchero50 wrote:Pull your heads and get the flanges milled. Same for the manifolds. Bolt them together and forgetaboutit. Factory had some thin metal heat shields but no gaskets on the FE's.
That's great in theory, but not everyone has the luxury of tearing their engine apart just to fix an exhaust leak. I for one would rather keep replacing exhaust gaskets every few years than pull the heads once just to have the flanges milled. Now if I were pulling them for some other reason, that would definitely be an option.
OK, ditch the gaskets and use some Permatex Ultra RTV instead. Let it set up overnight and forgetaboutit.
Having the heads millled would be a good option but it only has 83,000 miles on it with great compression and oil pressure so I don't want to mess with a good thing.....especially with my luck somedays....... .......that's why I'm looking at gasket options for now until I get to the point that I have to do something else internal with it......thanks much for all the suggestions so far.......got some decision making to do now.........
"Life is a garden - dig it"...........
1968 F100 2wd - Rangoon Red - 360 w/T18 - power steering and brakes
1997 Honda CBR 900RR
I have them on my 70 f250 with a 390 and headers. They have been on there for years with no problems. Definitely worth putting on.
Troy
Why is it that the trucks are always the best running vehicles in the family?
Ford means "found on road daily"
70 F100 Custom-352 w/68 Highboy 4x4 frame. My play/project truck
70 F250 Explorer-390/C6 auto. My work truck
04 Mitsubishi montero-family car
we put a set of gaskets that came from a Thunderbird parts House and not leak and not leaked at ALL, they stink real bad at first but they work And this was about 3 years ago, price of the gaskets is like 75.00 for the pair, more info on dealer I got them from was Pat Wilson Thunderbird Parts in NJ and he uses them on all of the birds since he does a lot of exhaust on those big birds
Tom, where Ford Trucks Rule
1956 Big Window
1964 F-750 Flat Bed
1965 M-100 Mercury
1966 M-350 Mercury
1966 F350 Wrecker
1972 F-350 Crew Cab
1997 F-450 7.3 with 85,000 original miles
2006 F-150 Crew Cab
2008 F-650 Crew Cab Roll Back 6.7 Cummins
2020 Flat Top Peterbilt Roll Back PX-7 Engine
and 2 cars 1968 XLT and 2017 Mustang
.......that's why I'm looking at gasket options for now until I get to the point that I have to do something else internal with it......thanks much for all the suggestions so far.......got some decision making to do now......... 
