well like the title says i have a clifford 4bbl, and stock exhaust mani, problem is when bolted together there is a noticeable gap between the 2.
is it normal that none of the holes are drilled to bolt the cliffy it to the stock heat riser ??
-Mike
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| cliffy intake gap ?? https://www.slantsix.org/forum/viewtopic.php?t=40862 |
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| Author: | Volare4life [ Fri Jul 02, 2010 12:03 am ] |
| Post subject: | cliffy intake gap ?? |
well like the title says i have a clifford 4bbl, and stock exhaust mani, problem is when bolted together there is a noticeable gap between the 2. is it normal that none of the holes are drilled to bolt the cliffy it to the stock heat riser ?? -Mike |
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| Author: | Wesola78 [ Fri Jul 02, 2010 5:33 am ] |
| Post subject: | Re: cliffy intake gap ?? |
Quote:
is it normal that none of the holes are drilled to bolt the cliffy it to the stock heat riser ??
From what I've read and seen, yes. Folks who run a Clifford intake on their slant six either have:-Mike 1) Headers 2) A modified exhaust manifold As I see it, those are your options. |
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| Author: | Charrlie_S [ Fri Jul 02, 2010 5:40 am ] |
| Post subject: | |
Clifford intake will not work with the stock unmodified exhaust manifold. Clifford specifies "for use with headers". |
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| Author: | Sam Powell [ Fri Jul 02, 2010 6:11 am ] |
| Post subject: | |
You might get a header flange and cut it into pieces to fill the gaps. Sam |
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| Author: | maxracer21 [ Fri Jul 02, 2010 8:33 am ] |
| Post subject: | |
Clifford makes a water manifold heater that will fill that gap with some creative mods.............. regards MaX |
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| Author: | Volare4life [ Fri Jul 02, 2010 11:31 am ] |
| Post subject: | |
i was thinkin about drilling out the holes at the edge of the manifold and put a wood wedge in the gap,and use the bolts to clamp the wood in place i mean our motors don't get that hot do they ?? -Mike |
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| Author: | Wesola78 [ Fri Jul 02, 2010 11:48 am ] |
| Post subject: | |
Actually, I think that area in particular gets pretty hot. I think a metal plate would do much better. |
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| Author: | maxracer21 [ Fri Jul 02, 2010 1:20 pm ] |
| Post subject: | |
That's why they are bolted together in the stock configuration.. If you insulate your intake from the exhaust manifold heat your driveability goes down hill fast. That is if you live somewhere where the ambient temp is below 180F. You really need that heat to warm the intake. Hope this helps. regards MaX |
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| Author: | emsvitil [ Fri Jul 02, 2010 1:44 pm ] |
| Post subject: | |
Bolt a plate onto the top of the exhaust manifold to seal it. Use flush/tapered head bolts. |
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| Author: | Volare4life [ Fri Jul 02, 2010 2:52 pm ] |
| Post subject: | |
already got a plan, piece of sheet metal cut to size, no need to use cuntersunk bolts, there is enough room to use regular hex bolts, i will use washers on the sides of the exhaust mani to "build up" that area, use either JB weld kwik or high temp gasket sealer to create a seal between the mani and the plate, will keep ya'll posted with pics of course, off to the parts store for a couple of belts to finish up the motor, -Mike |
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| Author: | Joshie225 [ Fri Jul 02, 2010 7:19 pm ] |
| Post subject: | |
I used a piece of 1/4" plate when I did this around 1990. Anything thin will warp and leak. |
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| Author: | Sam Powell [ Fri Jul 02, 2010 7:40 pm ] |
| Post subject: | |
I misunderstood. I thought the gaps were at the manifold/head surface as well. If they advertise it as with headers only, you would think there would be a gap there as well. Thanks guys for not teasing me about that misunderstanding. I guess since the designer had no intention to have this manifold mate up with an exhaust manifold heat riser stove, how far in or out the intake sits is not critical. Let us know how this works out for you. By the way, the exhaust gas temperatures run around 1200 degrees, and the outside of the manifold hits around 400 routinely. A piece of wood would be toast in no time. Literally. Sam |
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| Author: | Wesola78 [ Fri Jul 02, 2010 8:28 pm ] |
| Post subject: | |
Right now, I have a Dutra front exhaust manifold, and a modified stock manifold for the rear. The modified rear manifold has the "hot box" cut waaayyy down. It's fine during these hot months here in Texas. However, I recently took another modified exhaust manifold that was in my garage to a local welder. He just welded in an iron plate where the exhaust manifold bolts to the intake. So this should help during the cold weather here, what little cold we have anyway. |
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| Author: | Joshie225 [ Fri Jul 02, 2010 8:33 pm ] |
| Post subject: | |
This is a good example of why an Offy intake is a nice street performance choice with a stock exhaust manifold. I won't run an unheated manifold on anything but a race car. The driveability difference/sacrifice is not worth the small power increase. |
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| Author: | DusterIdiot [ Fri Jul 02, 2010 9:08 pm ] |
| Post subject: | Lol... |
The Remflex gasket that comes with the RF6008 set is about that thick... I have a couple and am not sure what to do with them as they are too thick to use on stock manifolds... Send me a PM and I'll send it your way for $5... -D.Idiot |
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