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994 casting NASCAR heads |
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one bad rambler 
AMC Addicted 
Joined: Jan/09/2008 Location: On The Island Status: Offline Points: 2007 |
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 Posted: Nov/22/2017 at 9:18pm |
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Mine are defiantly not nascar heads...but they have been modified since the early 70`s...i freshened them several years ago...the valve`s in mine are 2.055 sbc .100 longer than stock and if i remember 1.171 ex. from a boss 302...the port work is very nice...my friend used them briefly in 73 and they sat in bags until 05 when i bought them...he reassemble his car and went slower with Edlebrock heads...
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 68 AMX 390 4 Speed,68 American,64 American 2 Door Wagon Altered Wheelbase,78 Concord Build 360,727,8.8
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jtsllc1
AMC Addicted
Joined: Sep/24/2013 Location: ORFORDVILLE WI Status: Offline Points: 1035 |
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Posted: Nov/23/2017 at 5:56am |
This is exactly what Bob Stieg does and with out even testing them on the flow bench his car dipped into the 9's.... He keeps the velocity up and has a strong average for his flow numbers but a matched combination is key..
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JTSLLC1
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jcisworthy
AMC Addicted
Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Nov/23/2017 at 7:30am |
  Did some sonic testing and these castings are special. I suspect AMC had a "Racing" casting that were cast with the 993 numbers on an otherwise different casting. The runners are much thicker than the stock 993 casting I have here. There are subtle differences externally also. You can see in the pictures above the intake runner and below the threaded hole is a cavity on the stock casting and the other head has a wall. Looking in the water jackets it is clear that the runners are thicker. It may not show up well in the pictures but, looking at it, it is clearly seen.  |
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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jcisworthy
AMC Addicted
Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Nov/23/2017 at 7:41am |
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I have been trying to decide what heads to use on the engine for my Javelin and it looks like these are it
I like the idea of a special factory head, and with the extra wall thickness I can open them up more I will install bronze guides, hardened seats, competition valve job, pushrod tubes, bowl work and see what they do I will probalby use 2.100 / 1.6 8MM stem Ferrea competiton plus valves because I have them |
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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dbomb
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Joined: Jul/22/2012 Location: new jersey Status: Offline Points: 705 |
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Posted: Nov/23/2017 at 8:01pm |
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Kool stuff maybe it was a police interceptor special run or something like that. Happy thanksgiving
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rebuiling 73 amx need parts
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jcisworthy
AMC Addicted
Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Dec/03/2017 at 6:12am |
  Found some numbers on the heads after I cleaned them  |
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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Class Guy
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Joined: Jul/02/2007 Location: Arkansas Status: Offline Points: 969 |
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Posted: Dec/03/2017 at 7:34am |
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Tom Goldman from Allentown, PA. I believe he posts on this forum but I do not know his User Name. I know he is on www.classracer.com
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Addicted to acceleration.
Owner and Admin for www.classracerinfo.com |
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Hurst390
AMC Addicted
Joined: Apr/20/2008 Location: secret Status: Offline Points: 5822 |
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Posted: Dec/03/2017 at 1:34pm |
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I have a set of Reed heads here..They have the number 778492
http://i23.photobucket.com/albums/b381/Hurst390/Hurst390001/10155283_643879952332826_3747318083069669773_n_zps0c9d8321.jpg |
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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jcisworthy
AMC Addicted
Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Dec/03/2017 at 2:35pm |
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Was Reed a cylinder head porter?
Are they raised runner heads?
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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gremlinsteve
AMC Addicted
Joined: Dec/16/2008 Location: houston Status: Offline Points: 884 |
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Posted: Dec/03/2017 at 2:52pm |
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Reed racing
Yes they where know for porting |
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one bad rambler wrote: