Author Topic: Boss 420 heads  (Read 1237 times)

shlb69

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Boss 420 heads
« on: April 28, 2021, 07:46:52 PM »
Started trying to put some of my boss 429 heads together in the garage

69mach351w

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Re: Boss 420 heads
« Reply #1 on: April 29, 2021, 07:15:33 PM »
You typed Boss 420 heads in your subject box.

JohnSlack

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Re: Boss 420 heads
« Reply #2 on: April 29, 2021, 11:21:14 PM »
You typed Boss 420 heads in your subject box.

He's 9 short.
John

shlb69

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Re: Boss 429 heads
« Reply #3 on: May 11, 2021, 09:47:33 PM »
Alright guys

shlb69

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Re: Boss 420 heads
« Reply #4 on: May 11, 2021, 09:49:18 PM »
Photo

JD

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Re: Boss 420 heads
« Reply #5 on: May 11, 2021, 10:01:41 PM »
Image above cropped - might be easier to view, can delete if wanted...
'67 Shelby Headlight Bucket Grommets https://www.saacforum.com/index.php?topic=254.0
'67 Shelby Lower Grille Edge Protective Strip https://www.saacforum.com/index.php?topic=1237.0

2112

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Re: Boss 420 heads
« Reply #6 on: May 12, 2021, 01:23:37 AM »
Are they O-ringed heads?

Are you going to build a couple engines?

shlb69

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Re: Boss 420 heads
« Reply #7 on: May 13, 2021, 12:14:21 AM »
They are oringed  and if I canít find any blocks to put a engine together will most likely sell them

2112

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Re: Boss 420 heads
« Reply #8 on: May 13, 2021, 01:29:34 AM »
Well, with external oil drain backs, you can always use one of these.

https://jonkaaseracingengines.com/shop/cylinder-blocks/ford-racing-svo-bbf-a-460-cylinder-block-large-bore/

Those heads would love more cubic inches to feed.

pbf777

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Re: Boss 420 heads
« Reply #9 on: May 13, 2021, 11:18:29 AM »
     Just a note:  The M-6010-A460  Blocks have been discontinued, to be replaced by the M-6010-A460X block, with a current availability date of Dec. 31st (  maybe?   ::)  ).

     Scott.

2112

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Re: Boss 420 heads
« Reply #10 on: May 13, 2021, 02:41:14 PM »
     Just a note:  The M-6010-A460  Blocks have been discontinued, to be replaced by the M-6010-A460X block, with a current availability date of Dec. 31st (  maybe?   ::)  ).

     Scott.

Have they made design changes?