11-30-2020, 10:28 AM | #41 |
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Re: Big Boys Heads
Those look kile KOGEL hi-comp heads, available in two diff comp ratios, cast iron finned with 25% increase in water capacity. Not many made. I've a pair on my 40.
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11-30-2020, 10:39 AM | #42 |
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Re: Big Boys Heads
Yes, these are rare. I seem to recall an issue with them cracking, so I'd get them checked out before throwing them on a motor. It would be cheap insurance.
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11-30-2020, 12:33 PM | #43 |
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Re: Big Boys Heads
Those are kind of cool - similar in concept the the KR heads.
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11-30-2020, 01:51 PM | #44 | |
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Re: Big Boys Heads
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
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11-30-2020, 03:54 PM | #45 |
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Re: Big Boys Heads
Wow !!!
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11-30-2020, 04:22 PM | #46 |
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Re: Big Boys Heads
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11-30-2020, 04:48 PM | #47 |
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Re: Big Boys Heads
Are those from an Oldsmobile?
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11-30-2020, 07:36 PM | #48 |
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Re: Big Boys Heads
I'm having a hard time seeing the shape of the chamber directly above the piston. It sort of looks domed, but not as domed as a stock chamber. Does anyone else see that, or does it look flat to you?
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11-30-2020, 07:58 PM | #49 |
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Re: Big Boys Heads
Looks flat to me and I would assume mated to flat top pistons.
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12-01-2020, 01:10 PM | #50 |
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Re: Big Boys Heads
Grancor combustion chamber
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12-01-2020, 01:12 PM | #51 |
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Re: Big Boys Heads
Wish I knew how to make the picture bigger.
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12-01-2020, 01:25 PM | #52 |
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Re: Big Boys Heads
That's a "thumbnail". I "Clicked" on it and it came up to a decent size.
You done good. |
12-01-2020, 06:39 PM | #53 |
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Re: Big Boys Heads
mtt
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12-01-2020, 09:19 PM | #54 |
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Re: Big Boys Heads
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12-01-2020, 11:13 PM | #55 |
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Re: Big Boys Heads
Thanks, those are the heads that were onmy Bville engine. I wonder where they are now??
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12-02-2020, 06:00 AM | #56 |
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Re: Big Boys Heads
The Grancor are the better design for flow/power.
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12-02-2020, 09:26 AM | #57 |
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Re: Big Boys Heads
As you can see the heads have a sligth popup for the 3 3/4 stroke pistons. Also the piston clearance. I made a doming tool to equal the clearance. simple HC.
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12-03-2020, 02:47 PM | #58 |
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Re: Big Boys Heads
I like those chambers . . . wished I owned a set of those heads! Anybody got a "spare set" that they're not going to use???
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12-10-2020, 04:07 PM | #59 |
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Re: Big Boys Heads
aren't the Rocket heads kind of a mirror image? That is they have a deeper trough on the exhaust side.
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