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Thread: 87 "coug" resto winter project

  1. #301
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    I used Fel-Pro intake gaskets for a 93-95 Cobra and 96-01 Explorer 5.0 on my engine (same port opening as a 1250). I put them on dry. No coolant leaks. When I pulled the GT40 intake off two years ago to swap the Performer RPM intake on the gasket hadn't leaked at all. So on went the same gaskets installed the same way with the Performer RPM intake.
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

  2. #302
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    the intake gasket set works fine with GT40 heads.

    with these D20E heads,, the gasket isnt working right.

    I have a mr gasket set coming in today that seems to address a wide variety of water jacket differences from various heads.
    pics coming.

    maybe i should have asked for 69-72 torino / econoline intake gaskets for perhaps a 351M??

  3. #303
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    Quote Originally Posted by jcassity View Post
    the intake gasket set works fine with GT40 heads.

    with these D20E heads,, the gasket isnt working right.

    I have a mr gasket set coming in today that seems to address a wide variety of water jacket differences from various heads.
    pics coming.

    maybe i should have asked for 69-72 torino / econoline intake gaskets for perhaps a 351M??
    Do you mean 351W?? The M engines didn't exist till '75... 351M gaskets are nothing like a Windsor, those are basically a tall deck Cleveland with a big block bellhousing pattern... Nothing more than a 351C built in a 400 block, cheaper to cast one block for both engines...

    The head my gasket is pictured on is a D8 from my original Comet engine... Someone had swapped it's heads, originally it probably had D2 or maybe D3 as it's a very late '72... The intake is D3 and is no doubt orig...






    My other rides (that actually do run & drive)

    1969 Fairlane Cobra 428CJ 4-Speed << New 49th Birthday Picture

    1972 Comet GT - 306 C4

  4. #304
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    Yes,,W,, sorry. these are those 69 Windsor heads used from i guess 69 up to 72.,, not sure what i was thinking there with the 400

    so... this is much better.... Felpro 1250 set

    all i do is cut away that extra stud hole opening on the water jacket port.. or leave it cause it really wont matter i guess.
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  5. #305
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    Those FP 1250 are same ones that come in a small block Trick flow gasket set... They are what's on my 331...






    My other rides (that actually do run & drive)

    1969 Fairlane Cobra 428CJ 4-Speed << New 49th Birthday Picture

    1972 Comet GT - 306 C4

  6. #306
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    The 1250s are paper and leak eventually, even with RTV around the water ports. This gasket is what I run: https://www.summitracing.com/parts/fel-ms95952

    Same size as the 1250 but it's steel core with graphite on either side, plus the nice blue rubber end seals. Never gonna leak, bolts right up. Don't worry if the water ports on the MS95952 gasket are bigger than what's on your heads (they are bigger than the water ports on the Edelbrock Performers I run). They aren't going to leak. Trust me .
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

  7. #307
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    but............. I Cant do that gasket at all man,,,
    the water port overhangs past the head.

    the only way i can run that gasket is to silicone the heck out of the edge and it will prob blow out with presure sooner than later.

    the far left and far right edge of the gasket ,, the indent into the gasket is hanging out over the edge of the head.

  8. #308
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    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

  9. #309
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    yeah, been looking at 69 351 stuff for the heads,, and these showed up. the newest ones i got are paper like you said and that makes me sorta not want to use them.

  10. #310
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    Those Fel-Pro gaskets for a 69 351W should work and are not paper like the 1250 gasket is. Just use some RTV in place of the end seals, since the 351W end seals are wider.
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

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