SAAC Forum

The Cars => 1969-1970 Boss 302/429 => Topic started by: shlb69 on April 28, 2021, 07:46:52 PM

Title: Boss 420 heads
Post by: shlb69 on April 28, 2021, 07:46:52 PM
Started trying to put some of my boss 429 heads together in the garage
Title: Re: Boss 420 heads
Post by: 69mach351w on April 29, 2021, 07:15:33 PM
You typed Boss 420 heads in your subject box.
Title: Re: Boss 429 heads
Post by: shlb69 on May 11, 2021, 09:47:33 PM
Alright guys
Title: Re: Boss 420 heads
Post by: shlb69 on May 11, 2021, 09:49:18 PM
Photo
Title: Re: Boss 420 heads
Post by: JD on May 11, 2021, 10:01:41 PM
Image above cropped - might be easier to view, can delete if wanted...
Title: Re: Boss 420 heads
Post by: 2112 on May 12, 2021, 01:23:37 AM
Are they O-ringed heads?

Are you going to build a couple engines?
Title: Re: Boss 420 heads
Post by: shlb69 on May 13, 2021, 12:14:21 AM
They are oringed  and if I can't find any blocks to put a engine together will most likely sell them
Title: Re: Boss 420 heads
Post by: 2112 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.
Title: Re: Boss 420 heads
Post by: pbf777 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.
Title: Re: Boss 420 heads
Post by: 2112 on May 13, 2021, 02:41:14 PM
Quote from: pbf777 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.

Have they made design changes?