The early tube style heads are lighter. That is my main reason for using one. Well I had it laying about as well
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| top slant six racers early/late model head ? https://www.slantsix.org/forum/viewtopic.php?t=53426 |
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| Author: | USAJon [ Thu Sep 26, 2013 11:43 am ] |
| Post subject: | top slant six racers early/late model head ? |
so long term project what head does the top racers use not street , but track heads early/late considering race build head... |
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| Author: | slantzilla [ Thu Sep 26, 2013 8:35 pm ] |
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You'll actually see about a 50-50 split. There really is no major advantage/drawback to either. |
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| Author: | USAJon [ Thu Sep 26, 2013 8:40 pm ] |
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which is lighter is there an advantage to the early head for accessing the lifters through the drool tube area? |
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| Author: | madmax/6 [ Thu Sep 26, 2013 10:22 pm ] |
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I used the early head cause its lighter,and I like the tubes.Guzzi Mark |
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| Author: | ceej [ Thu Sep 26, 2013 10:35 pm ] |
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You can get to the lifters with a drool tube head on. Not with a Peanut. If you deck the block over 0.100" access to the lifters becomes more difficult. At 0.125" it's pretty tough, but still can be done. Beyond that, I don't know. The angle to get at them becomes a bit of a pain. CJ |
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| Author: | slantzilla [ Fri Sep 27, 2013 12:20 am ] |
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The late hydraulic head has bores just big enough to get lifters out if you are careful. The later heads have a touch more meat in them for porting. |
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| Author: | NCDemon1971 [ Wed Oct 02, 2013 12:28 pm ] |
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The early tube style heads are lighter. That is my main reason for using one. Well I had it laying about as well
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| Author: | Greg Ondayko [ Wed Oct 02, 2013 2:54 pm ] |
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I Believe there is a wider range of spark plug selection with the gasket type plugs vs. non gasket plugs for our applications. Greg |
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| Author: | Will [ Wed Oct 02, 2013 3:28 pm ] |
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Old style heads look cooler. Will |
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| Author: | Rick Covalt [ Wed Oct 02, 2013 6:11 pm ] |
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Quote: The later heads have a touch more meat in them for porting.
When I spoke to Mike about my new head, I had a list of heads I could send him to use. One was a 79 peanut plug and one was a 67-74 drool tube"169" head. I had heard that Mike may like the later heads and thought he may want that one. But I'm pretty sure he said he has kind of changed his mind about that a little because some of the later heads had too much core shift in the ports. So he asked me to send the earlier drool tube head. Just a FYI.Rick |
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| Author: | hyper_pak [ Wed Oct 02, 2013 7:52 pm ] |
| Post subject: | heads |
we took a bunch of heads to a porter in Newport News. He really liked the chamber shape on the peanut nut. The wall across from the valves looked like a better shape to him. He did a quick flow on my old head with 1.88 and 1.50 valves and liked what he saw. He thought the peanut with the bigger valves would be a good chamber for burn. I am thinking a sawzall on a peanut head will take a ton of weight out and allow lifter removal. |
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| Author: | Kidd [ Wed Oct 02, 2013 9:00 pm ] |
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I run a peanut head on my drag car.I just sent a drool tube head to Mike though, as they are lighter.LOL I love the peanut head......it will move over to my wifes new engine for her car, see how a big valve head likes the street. 
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