BBC Vic Jr. Intake
BBC Vic Jr. Intake I noticed that on this manifld that the back and middle water jackets are blocked and only the front two are open and go directly to the thermastat housing. I was wondering if I could block those too and just use the threaded holes on the heads themselves and run them to a y into the radiator? Any thoughts on this, anyone ever try it? I know on an LT1 they use them on the back of the heads as a vent tube to get rid of air.
Thanks,
Anthony
Thanks,
Anthony
6 & 8 Second Club
Joined: Aug 2006
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From: Illinois, RT 66 dragway area
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That's how we do alot of the Big Chief stuff when we use sheet metal intakes.
We actually have to drill & weld the head, but it's the same idea.
We use a -12 line into a manifold.
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That's how we do alot of the Big Chief stuff when we use sheet metal intakes.
We actually have to drill & weld the head, but it's the same idea.
We use a -12 line into a manifold.
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I don't want to use the manifold thermostat housing because it is going to interfere with my intake tubing from the airbox to the TB. This is a BBC going into a 97 WS6 T/A just so you can get a mental picture of what I'm talking about. Not my car, and he isn't running a cooling system, but you can see that if he did the intake tube wouldn't clear the thermostat housing on its way to the ram air box. I was hoping I could run it from the heads to a remote thermostat of some kind and then to the radiator. Is that possible......to run a remote thermostat?
Last edited by ulakovic22; Apr 27, 2007 at 07:26 PM.
6 & 8 Second Club
Joined: Aug 2006
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From: Illinois, RT 66 dragway area
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When I said manifold, I meant a manifold, not the intake manifold. It has the same name, sorry. It is a separate y-block type adapter so you can combine both -12 lines into a radiator hose then into radiator. I did see one time at the track a guy that welded 2 -12 fittings into his radiator so he did not have a manifold. I have never seen anyone build one with a therm because these are usually only big time motors with electric pumps and towed up to the line type cars. I know an adapter can be built with a therm, it would have to be a 2 piece and probably need someone with a mill to cut a recessed area into the Y-block. Wish I knew how to draw. Good luck.
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When I said manifold, I meant a manifold, not the intake manifold. It has the same name, sorry. It is a separate y-block type adapter so you can combine both -12 lines into a radiator hose then into radiator. I did see one time at the track a guy that welded 2 -12 fittings into his radiator so he did not have a manifold. I have never seen anyone build one with a therm because these are usually only big time motors with electric pumps and towed up to the line type cars. I know an adapter can be built with a therm, it would have to be a 2 piece and probably need someone with a mill to cut a recessed area into the Y-block. Wish I knew how to draw. Good luck.
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Another quick question. If I run aftermarket heads they won't have the holes in the front of the heads. Could I use the two ports on either side of the thermostat? I would probably have to open them up a bit to like 3/4" but would they flow enough?
6 & 8 Second Club
Joined: Aug 2006
Posts: 2,284
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From: Illinois, RT 66 dragway area
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We are using aftermarket heads, we drill in the the water chamber. Some guys tap the head, I like to weld a bung so you have more meat & threads. My good camera is broke & I can't find my work one. If I can't find this week I'll go buy a new one this W/E then I can show you anything you need. I was taught use a -12 line, so you would have to tap for what size the -12 fitting uses. I've also seen some guys that didn't want to drill their $10,000 heads, so they drilled and taped the sheet metal intake. I don't see why you can't use those holes or tap into the crossover, from the top or side, whichever way clears best & will still have enough meat to tap. You don't need a leak.
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We are using aftermarket heads, we drill in the the water chamber. Some guys tap the head, I like to weld a bung so you have more meat & threads. My good camera is broke & I can't find my work one. If I can't find this week I'll go buy a new one this W/E then I can show you anything you need. I was taught use a -12 line, so you would have to tap for what size the -12 fitting uses. I've also seen some guys that didn't want to drill their $10,000 heads, so they drilled and taped the sheet metal intake. I don't see why you can't use those holes or tap into the crossover, from the top or side, whichever way clears best & will still have enough meat to tap. You don't need a leak.
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