AMC 327 - 443 CID Rambler V8

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Tue Jun 27, 2017 10:08 pm

I could write a small book on Rambler V8 exhaust ports but I think 50% of forum participants are turned off by reading long explanations.

If anyone here could drive this car, I think they'd know why there are no excuses needed for this engine.

Since '56-'65 Rambler V8 heads are a close copy of '53-'62 Cadillac V8 heads & Cadillac made a 429 version of their engine, I think these ported heads get the job done on this 443 RV8 example.

Here's my ported '64 RV8 heads for this 443 engine.

[img]
exhaustleft1.JPG
exhaustleft2.JPG
[/img]
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Last edited by amcenthusiast on Tue Jun 27, 2017 10:31 pm, edited 1 time in total.
XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Tue Jun 27, 2017 10:14 pm

Showing ported '64 AM RV8 siamesed center port, from outlet side, currently in use on this 443 engine:

[img]
exhaustcport1.JPG
exhcprtleft1.JPG
exhcprtright1.JPG
exhaustcport2.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Tue Jun 27, 2017 10:18 pm

Showing other end port, ported, '64 Rambler V8 head, currently in use on 443 stroker block:

[img]
exhaustright1.JPG
exhaustright2.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Tue Jun 27, 2017 10:27 pm

Shop drawing with some illustration for explanation:

-since hot air flows faster than cold, the exposed roof in section 3, having water jacket underneath, is designed to increase scavenging. (red line/no water jacket, blue line/water cooled exhaust vapor)

The 'loudspeaker shape' of the port's midsection gives these engines their distinctive signature sound. (section 2)

[img]
epc12box.jpg
epr12box.jpg
RV8epdrawing.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 1:11 am

Same ports, in sequence, confessing much work done to enlarge the valve pocket outlet area:

[img]
epsview1a.JPG
cpsview1a.JPG
cpsview1b.JPG
epsview1b.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 1:15 am

2nd head, in sequence, confessing much work done to enlarge valve pocket outlet area:

[img]
epsview2a.JPG
cpsview2a.JPG
dpsview2b.JPG
epsview2b.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 6:57 am

Ported '64 heads for 443 CID Rambler V8, showing unfinished exhaust port outlets having gouges from 'leaning on it', caused by rubbing shaft of porting tool, in order to spend time 'going around the corner' to enlarge the valve pocket outlet area deep inside the 'long and curvy' port:

[img]
unfinoutlet1a.JPG
unfinoutlet1b.JPG
unfinoutlet1c.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 7:05 am

Ported '64 Rambler V8 heads for 443 CID Rambler V8, 2nd head, unfinished outlets showing gouges caused by rubbing the shaft of the porting tool in order to 'go around the corner', to enlarge the valve pocket outlet area:

[img]
unfinoutlet2a.JPG
unfinoutlet2b.JPG
unfinoutlet2c.JPG
[/img]
You do not have the required permissions to view the files attached to this post.
XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 7:51 am

Exhaust port outlets gouged by porting effort, caused by rubbing long shaft 'to go around the corner' (shown by shop drawing):

Showing DIY brazing pit used to repair exhaust port outlet shape, also to fill void in center port roof after removing 'top bolt hump':

[img]
ShopDrawingcurvedexhport.jpg
DIYbrazingpita.JPG
DIYbrazingpitb.JPG
DIYbrazingpitc.JPG
DIYbrazingpitd.JPG
StokedDIYpit.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 7:56 am

'64 Rambler V8 heads for 443 stroker, fully ported exhaust ports, gouged outlet repair; post brazing, pre-finishing:

[img]
brazingrepair1a.JPG
brazingrepair1b.JPG
brazingrepair1c.JPG
brazingrepair2a.JPG
brazingrepair2b.JPG
brazingrepair2c.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 8:29 am

'64 AMC 327 heads reworked for 443 stroker application; showing post-brazing, center port top bolt hump elimination plug void filled and ground smooth:

[img]
pluggedcenterporttopboltcavitya.JPG
centerbolthumpremovalviodreparieda.JPG
centerporttopboltplughumpremovalb.JPG
centerbolthumpvoidfilledb.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 9:04 am

AMC 327, '64 head, exhaust port rework for 443 stroker application; brazed outlet repairs getting ground flush:

[img]
brazedgougescleanup1a.JPG
brazedgougescleanup1b.JPG
brazedgougescleanup1c.JPG
[/img]

Second head:

[img]
brazedgougescleanup2a.JPG
brazedgougescleanup2b.JPG
brazedgougescleanup2c.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 9:08 am

AMC 327 XRV8 Race Parts, exhaust ports reworked for 443 stroker, finished:

[img]
XRV8RP443ep1afinished.JPG
XRV8RP443cpfinished.JPG
XRV8RP443ep1cfinished.JPG
[/img]

Second head:

[img]
XRV8RP443ep2afinished.JPG
XRV8RP443cp2bfinished.JPG
XRV8RP443ep2cfinished.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 9:13 am

Next, showing pics of intake ports...
XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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Re: AMC 327 - 443 CID Rambler V8

Post by amcenthusiast » Wed Jun 28, 2017 8:35 pm

'64 AM RV8 intake ports; stock vs ported for 443 stroker:

[img]
stockint.JPG
portedint.JPG
stockintpr.JPG
portedintpr.JPG
[/img]
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XRV8 Race Parts > for AM's '56-'67 Rambler V8: http://amcramblermarlin.1colony.com/favorite_links.html

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